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Photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method
ActiveCN104281741ARealize "compact" designImprove use valueSpecial data processing applicationsPhotovoltaic arraysEngineering
The invention relates to a photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method, which sequentially comprises the following four steps including (1) assembly inclination angle preliminary calculation; (2) array pitch preliminary calculation; (3) array pitch optimization; and (4) assembly inclination angle optimization. The comprehensive calculation method provided by the invention has the advantages that the shadow loss of an assembly in the whole year time, the direct current cable consumption of a photovoltaic power generation unit, the direct current cable wire loss and the photovoltaic array occupied area are comprehensively considered, the optimal inclination angle of the assembly and the fore-and-aft pitch of arrays are determined, and in addition, the comprehensive calculation method capable of reasonably determining the assembly inclination angle and the array pitch for pursuing the power generation benefit maximization is provided.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES
Compound reinforcing method capable of rapidly falling-silt, promoting-seepage, prepressing, reinforcing and blow filling soft clay
The invention relates to a compound reinforcing method capable of rapidly falling-silt, promoting-seepage, prepressing, reinforcing and blow filling soft clay. The method comprises the following steps: mixing water and soil separating agent and sucking silt mud, introducing the mud mixed with the water and soil separating agent into a cofferdam for silt falling, appearing obvious and rapid solid-liquid separation of the mud in the cofferdam, and overflowing and discharging or recycling the separated tail water containing extremely few of solid matters from the far end of the cofferdam; after filling, silt falling and discharging, respectively inserting a plastic drainage plate, laying a plastic drainage pipe, geotextile and a plastic film on the surface layer of the silt, utilizing a vacuum pump to suck to form negative pressure at the lower part of the plastic film, discharging water in silt body on the surface layer by means of atmosphere pressure to lead the bearing capacity of siltbody on the surface layer to be improved rapidly, establishing an operation platform for follow-up soft base treatment, such as vacuum preloading, pile deep stirring, electroosmosis and plate body stabilizing and other technologies, thus realizing the filling-silt overall soft foundation consolidation treatment purpose in the cofferdam. The technology of the invention reduces the construction time of filling soft soil foundation to half and the cost to a half, is popularized and applied, and has extremely economic and social benefits.
Owner:要明伦
Triphenyl amine dyes for dye-sensitized solar cells
InactiveCN101362863AEfficient use ofEasy to makeStyryl dyesLight-sensitive devicesPhotosensitizerOrganic dye
The invention belongs to the technical field of solar batteries, which more particularly relates to a preparation of a novel triphenylamine group organic dye and the application thereof as a photosensitizer in a dye-sensitized solar cell. The triphenylamine group organic dye provided by the invention has excellent light-capturing capacity; the D-Pi-A molecular structure thereof causes the effective transferring of the electrons in the molecule. The titanium dioxide electrode sensitized by the dye is applied to the dye-sensitized solar cell and obtains a higher photoelectric conversion property. The novel triphenylamine group organic dye provided by the invention is novel in structure, is easy to be composed, is low in cost, and has excellent photoelectric properties, can be modified by molecule designing and shows a potential application prospect to replace a heavy metal organic photosensitizer.
Owner:NANKAI UNIV
A novel feather wing bionic ventilation flapping wing system and a multi-vortex interference mechanism analysis method
InactiveCN109885908ABroaden design ideasImprove aerodynamic characteristicsSustainable transportationSpecial data processing applicationsFlapping wingBionics
The invention belongs to the technical field of cross of bionics and aerodynamics, and discloses a novel feather-wing bionic ventilation flapping wing system and a multi-vortex interference mechanismanalysis method, so as to derive and describe a motion equation set and capture the vortex motion tracks. The method is characterized by analyzing the influence rules of the dynamic aerodynamic characteristics, the flow rules, the dynamic vortex structures and the vortex interference characteristics of the ventilation flapping wing system. The invention provides a multi-body model design of the novel feather wing bionic ventilation flapping wing system, and provides an aerodynamic shape and a flapping scheme, so that the design thought of the micro flapping-wing aircraft is expanded, and the aerodynamic characteristics are improved, the influence rules of the parameter changes of different fluttering frequencies, fluttering angles, fluttering inclination angles, Reynolds numbers and the like on the lift resistance characteristics, the thrust characteristics, the flow rules, the dynamic vortex structures and the like of the ventilation flapping wing layout are concluded and summarized,and the dynamic aerodynamic force between the moving winglet and the main flapping wing and a multi-vortex interference mechanism of the dynamic aerodynamic force are summarized.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Camptothecin prodrug monomer and polymeric prodrug amphipathic molecules thereof as well as preparation method and application of camptothecin prodrug monomer and polymeric prodrug amphipathic molecules
ActiveCN103524519AGood water solubilityImprove stabilityOrganic active ingredientsOrganic chemistryDisulfide bondingPolymeric prodrug
The invention relates to a reduced response camptothecin prodrug monomer as shown in a formula I, reduced response camptothecin polymeric prodrug amphipathic molecules of the reduced response camptothecin prodrug monomer, and a preparation method and application of the reduced response camptothecin prodrug monomer and the reduced response camptothecin polymeric prodrug amphipathic molecules. In the formula I, each i is 2 or 3 independently, each X is O or NH independently, and R is H, CH3 or CH2CH3. According to the preparation method, raw materials including camptothecin, triphosgene and the like are used for modifying 20 bits of hydroxyls of camptothecin to prepare a camptothecin prodrug monomer containing disulfide bonds, then the camptothecin prodrug monomer is subjected to high-conversion-rate polymerization by using active free radical polymerization method to obtain an amphiphilic polymer which contains a camptothecin drug repetitive unit and has an extremely high drug loading capacity (more than 50wt%), and in a tumor cell reducing environment, a side chain disulfide bond is broken to perform molecular rearrangement and release camptothecin prodrug molecules, so that the amphiphilic polymer has characteristics of a reduced response controlled-release raw drug. The polymeric prodrug amphipathic molecules improve the water solubility and stability of the drug and have a controlled release characteristic.
Owner:UNIV OF SCI & TECH OF CHINA
A high dam and large reservoir ultra-deep water retaining and venting system and its operating method
ActiveCN105220659BSolve the key technical problems in the design of deep water retaining and ventingImprove securityBarrages/weirsReservoir engineeringWater flow
The invention discloses a high dam reservoir ultra-deep water retaining and emptying system and an operation method thereof. The water retaining and emptying system comprises first to last stage gate systems and a last stage radial gate system, and the first to last stage gate systems are sequentially arranged on a tunnel; each stage gate system is provided with communicating pipes with water supplement and draining functions, and the communicating pipes perform water flow control by means of valves; all the stages of gate systems achieve water pressure and air pressure balance through the inner and outer communicating pipes, the outer maintaining communicating pipes, ventilation pipes, galleries and the like of the gate systems respectively; the last stage gallery is communicated with the down stream of the water retaining and emptying system through a gallery shaft. The operation method includes four working conditions of water storing, water emptying, maintaining and water retaining. According to the high dam reservoir ultra-deep water retaining and emptying system and the operation method thereof, multiple stages of gates are disposed so as to share burden with a gross head; water filling is performed in rear of each stage of gate so as to counteract the pressure of water retaining heads, and hydraulic thrust which each stage of gate tolerates can be kept within a conventional design range; the defects of metal structures in the prior art can be overcome; the key technical problem of ultra-deep water retaining and emptying designs in the high dam reservoir engineering can be solved.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Michlers ketone-cyano groups organic dyestuff and synthesis method thereof
InactiveCN101265365AShort synthetic stepsSimple processSolid-state devicesAzo dyesOrganic solar cellSynthesis methods
The invention provides a novel Michler ketone-cyan organic dye and a synthetic method thereof. The dye derives from Michler ketone, and has the structural formulae which represent Michler ketone-cyan organic dye compounds 1, 2, 3, 4 and 5, respectively. Each molecule of the dye comprises two nitrogen containing groups, namely, the structural feature of double electron-donating groups. Accordingly, the molecules can be oxidized and deacidized easily, and have better capability of donating electrons and the capability of trapping electrons from electrolyte more quickly. The dye extends the design thought of organic photosensitizers, and enriches the research content of dye sensitization solar batteries, thereby having very important significances for improving the photoelectric transformation efficiency of organic solar batteries and reducing the cost of batteries both in theory and practice. The synthetic step is short, the process is simple; the cost is low and the yield is high.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Device for producing large-area surface discharge by utilizing water electrodes
InactiveCN103025040ASolve the discharge problemEasy dischargePlasma techniqueDischarge efficiencyVertical tube
The invention discloses a device for producing large-area surface discharge by utilizing water electrodes. The device structurally comprises a sealing tank and a discharge device installed in the sealing tank, wherein the discharge device comprises a plurality of sequentially arranged U-shaped tubes. Vertical tubes on each side of the U-shaped tubes are aligned at intervals, adjacent vertical tubes are staggered and arranged in two rows, and an insulating dielectric plate is placed between two rows of adjacent vertical tubes on each side. Horizontal base tubes of the U-shaped tubes are embedded into an insulating rubber layer side by side. The water electrode is placed into one vertical tube of the U-shaped tubes, water electrodes placed in the aligned vertical tubes are jointly connected to one output end of a high-voltage alternating current power supply, and the water electrodes placed in other row of aligned vertical tubes are jointly connected to the other output end of the high-voltage alternating current power supply. Compared with a solid electrode dielectric barrier surface discharge device embedded in an insulating dielectric through metal strips, the heat dissipation problem of a discharge electrode is solved fundamentally, the discharge duration and the service life are prolonged, the discharge efficiency is improved, the manufacture process technological requirement is reduced, and the discharge device manufacture cost is reduced. The device for producing the large-area surface discharge by utilizing the water electrodes has wide application prospect in the fields of ozone synthesis, sterilization and disinfection, material processing, aircraft cloaking and the like.
Owner:HEBEI UNIVERSITY
N-aryl axially chiral carbene-oxazoline compound and application thereof
InactiveCN102093343ABreak through the concept of design and developmentBroaden design ideasOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsArylCarbene
The invention relates to a non-carbon-carbon aryl axially chiral compound and application thereof. The invention discloses a novel N-aryl axially chiral carbene-oxazoline compound (compound disclosed as formula I or an optical isomer thereof), and synthesizes a series of metal complexes (compounds disclosed as formula II) by using the N-aryl axially chiral carbene-oxazoline compound as the ligand. The obtained metal complexes can be used for catalyzing the asymmetric allylic substitution reaction, and achieves a good effect. The invention breaks through the design and development concept of the existing axially chiral ligand, and widens the design thought of the existing axially chiral ligand.
Owner:EAST CHINA UNIV OF SCI & TECH
Elastic structural member in through-type rotary geometric shape
ActiveCN103244587AWide selection of mechanical properties of materialsBroaden the range of materials usedConveyorsLeaf springsClassical mechanicsEngineering
The invention discloses an elastic structural member capable of realizing hardness and softness coupled bearing capacity, which is characterized in that the structural member is in a through-type rotatory geometric shape. The through-type rotatory geometric shape provides a path which is easy to balance and realize for allowing the structural member to have the hardness and softness coupled bearing capacity and for performance optimization of the structural member; a material application scope of the elastic structural member can be expanded greatly; either an elastic material, or various rigid materials with larger elastic moduli can be used; the excess mass of the structural member is removed greatly due to the irregular structural form characteristic of the nearly full-coincidence stressed state; and the material is saved, and energy saving and consumption reduction are achieved due to the weight loss of the structural member.
Owner:SUS LAB FOR IND SCI & TECH
Preparation method of metal side wall and device structure
ActiveCN110246762ABroaden design ideasSemiconductor/solid-state device manufacturingEtchingPhotolithography
The invention provides a preparation method of a metal side wall and a device structure, and the preparation method comprises the steps: providing a substrate, sequentially forming a metal film layer and a mask pattern layer on the upper surface of the substrate from the bottom to the top, and enabling the mask pattern layer to expose a part of the metal film layer; taking the mask pattern layer as an etching mask, etching the metal film layer by adopting an ion beam etching process to form an etching groove in the metal film layer, and forming a metal side wall on the surface of the side wall of the mask pattern layer by utilizing redeposition of metal atoms in the etching process; and performing mask removal processing on the metal side wall to remove the mask pattern layer on the outer surface of the metal side wall. According to the method, the problem that the ultrathin metal side wall cannot be prepared due to limitation of photoetching precision when the metal side wall is prepared by adopting a photoetching process or a stripping process in the prior art is solved.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Construction method and structure for partially replacing row pile support based on cutter suction type diaphragm wall
PendingCN111058458ABroaden design ideasRich hole forming (groove forming) processExcavationsBulkheads/pilesLine tubingButt joint
The invention relates to a construction method and structure for partially replacing a row pile support based on a cutter suction type diaphragm wall. The structure comprises a pipeline suspension protection structure and a pipeline outer reinforcement cage. The pipeline suspension protection structure comprises latticed columns on the two transverse sides of a pipeline, a transverse I-shaped steel platform is arranged at the tops of the latticed columns, longitudinal steel trusses are arranged above the I-shaped steel platform, upper I-shaped steel arranged in parallel in the longitudinal direction is arranged above the steel trusses, and lower I-shaped steel located below the pipeline is suspended on the two transverse sides of the upper I-shaped steel through chain blocks. The pipelineis located above the lower I-shaped steel. According to the construction method and structure, the row pile support is partially replaced, the pipeline is suspended through the steel trusses, gas-liftreverse circulation grooving is carried out through a submersible drill, the reinforcement cage is machined in two sections and then is in butt joint in a male-female mode, concrete is poured to forma wall, and therefore the purpose that a foundation pit at the position wherein the pipeline cannot be moved and changed in an urban flourishing road section can be normally closed is achieved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
Method for preparation of high mud resistant polycarboxylic acid dispersant by unsaturated halogenated hydrocarbon copolymerization and grafting with cationic side chain
ActiveCN106188557AThe polymerization process is mild and stableLess side effectsAlcoholPolyethylene glycol
Belonging to the field of dispersants, the invention provides a method for preparation of high mud resistant polycarboxylic acid dispersant by unsaturated halogenated hydrocarbon copolymerization and grafting with a cationic side chain. The method consists of: employing an unsaturated carboxylic acid monomer, an unsaturated halogenated hydrocarbon monomer, an unsaturated cationic quaternary ammonium salt monomer, a polyethylene glycol compound and the like as the raw materials, firstly conducting main chain copolymerization, then polymerizing the cationic side chain, performing functionalization, and finally carrying out etherification grafting so as to synthesize the excellent performance high mud resistant polycarboxylic acid dispersant material with unsaturated halogenated hydrocarbon copolymerized and grafted with cationic side chain, i.e. taking unsaturated carboxylic acid and unsaturated halogenated hydrocarbon as the reactants, conducting free radical polymerization to obtain a carboxylic acid-halogenated hydrocarbon copolymer main chain, using high valence cerium salt-alcohol to initiate polymerization of an unsaturated cationic quaternary ammonium salt monomer so as to obtain a hydroxyl terminated cationic side chain, then modifying the hydroxyl terminated cationic side chain and the polyethylene glycol compound to obtain a functionalized side chain, and carrying out etherification grafting of the functionalized side chain on the carboxylic acid-halogenated hydrocarbon copolymer main chain. The method provided by the invention realizes high water reduction, slump loss resistance, high clay resistance and other multiple effects.
Owner:BEIJING UNIV OF TECH
Combined self-positioning and self-orientation polar compass device
The invention discloses a combined self-positioning and self-orientation polar compass device. The device comprises an inertia information sensing assembly, a satellite signal resolving assembly and the like. All the assemblies are combined integrally, so that not only is the electronic interference resistance of an inertial navigation system achieved, but also the advantages that the positioningerror of a satellite navigation system is irrelevant to time accumulation and all-weather real-time positioning is achieved, and the characteristic that the error of an inertial navigation device is accumulated along with time and the defect that satellite navigation signals are prone to interference are complemented. The device is mainly applied to navigation, positioning and motion state monitoring of ships in a polar region range. And the device is particularly applied to special geographic areas needing to be positioned, such as affected satellite navigation in case of radio failure. The system navigation precision is improved; and the device is simple in structure, high in positioning precision, small in size, easy to install, low in power and particularly suitable for scenes of real-time positioning and moving body state monitoring in the polar region range.
Owner:BEIJING INFORMATION SCI & TECH UNIV
Combining-dividing structure of cavity radio frequency device and cavity radio frequency device adopting same
ActiveCN103151589AImprove the design levelBroaden design ideasWaveguide type devicesInsulation layerElectrical conductor
The invention discloses a combining-dividing structure of a cavity radio frequency device. The combining-dividing structure comprises a first access and a second access, which are arranged in a cavity, wherein combining output of signals can be realized by the first access and the second access through a combining port, the combining port comprises a port joint, an inner conductor arranged in the port joint and a metal sleeve sleeved on the inner conductor, an insulation layer is arranged between the inner conductor and the metal sleeve, wherein the first access is realized by a medium filter and comprises at least one medium harmonic oscillator, and an arc-shaped lead is introduced from the inner conductor and is coupled with the medium harmonic oscillator which is adjacent to the combining port; the second access is realized by a metal coaxial filter and comprises at least one resonant column, and a lead is introduced from the metal sleeve and is electrically connected with the resonant column, which is adjacent to the combining port, in the metal coaxial filter. The invention further discloses the cavity radio frequency device adopting the combining-dividing structure. The cavity radio frequency device has the advantages of novel structural design, simple structure and good intermodulation, and is suitable for mass production.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD +1
Coating process for electrostatic spraying of polyether-ether-ketone powder on surfaces of drill collar threads
InactiveCN102698941AEasy to useMeet the requirements of insulationPretreated surfacesCoatingsTemperature controlAbrasive blasting
The invention relates to a coating process for performing electrostatic spraying of polyether-ether-ketone powder on the surfaces of threads. The coating process comprises the following steps of: pretreating the surface of a workpiece, namely performing blast sanding, and spraying a transition layer; putting the workpiece into a spraying heating heat-preserving box; heating the workpiece, namely 1) controlling target temperature in the spraying heating heat-preserving box to be 320 DEG C, and preheating the workpiece, 2) measuring the temperature of the workpiece after the actually-measured temperature in a temperature control box reaches the target temperature for 10 to 30 minutes, and 3) heating locally, namely heating a spraying area of the workpiece locally and emphatically; and spraying the polyether-ether-ketone powder to the workpiece, namely 1) spraying, 2) keeping the temperature, namely keeping the temperature of between 340 and 370 DEG C in space environment for 5 to 10 minutes, and after melting the polyether-ether-ketone powder completely, stopping heating, keeping the temperature, and cooling to room temperature with a furnace. By the coating process, a polyether-ether-ketone insulated coating which is smooth and uniform and has firm bonding force is formed on the surfaces of the threads, and the requirement of designers on insulation is met well.
Owner:THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
High-sensitivity rod type six-component wind tunnel test balance inlaid with different materials
ActiveCN114323546AMeet the design requirementsGood technical supportAerodynamic testingSustainable transportationAerodynamic loadFlight vehicle
The invention discloses a high-sensitivity rod type six-component wind tunnel test balance inlaid with different materials, and relates to the technical field of force and moment measurement equipment, and the balance is characterized in that inlaid moment element structures are installed at the two sides of a balance main body structure in an inlaid installation mode, and the inlaid moment element structures are made of materials different from the balance main body structure; and the embedded torque element structure realizes high-sensitivity measurement of the rolling torque. According to the invention, the embedded torque element structure made of another material is embedded on the balance main body structure, so that the contradiction between the overall strength and rigidity of the balance element and the sensitivity of the rolling torque element is solved, and accurate test measurement of great difference between aerodynamic force and torque load values of an aircraft is realized; accuracy, safety and reliability of wind tunnel test data of a micro rolling moment aircraft are greatly improved, and the method can be applied to measurement of aerodynamic force and moment of aircrafts with similar aerodynamic loads and different layouts.
Owner:INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
Structure for preventing cold penetration and dewing of basement base plate of costal building and construction method thereof
InactiveCN101775817ASignificant economic and comprehensive benefitsBroaden design ideasProtective foundationConstruction industryCushion
The invention relates to the field of construction engineering, in particular to a structure for preventing the cold penetration and the dewing of a basement base plate of a costal building and a construction method thereof. The structure mainly comprises a base plate plain concrete cushion, waterproof coiled materials, watertight concrete, shear wall watertight concrete, an outer shear wall insulating layer and a protection wall. The invention is characterized in that a layer of common hollow concrete is added between the basement base plate concrete and the waterproof coiled materials. By casting the common hollow concrete and adding the insulating layer to the basement base plate, the basement base plate concrete does not have the problems of cold penetration and dewing at a low outside air temperature. The invention expands the design idea for the field of the insulation of the basement base plate of the costal building, and provides an effective method for fundamentally solving the common quality troubles of the cold penetration and the dewing of the basement base plate in the construction industry, thereby allowing a construction enterprise or a using enterprise not to spend human resources, material resources and financial resources year after year in dealing with the problems. The invention has prominent economic benefits and combined revenues.
Owner:SHENZHEN HONGXUAN BUILDING ENG
Camptothecin prodrug monomer and polymeric prodrug amphipathic molecules thereof as well as preparation method and application of camptothecin prodrug monomer and polymeric prodrug amphipathic molecules
ActiveCN103524519BGood water solubilityImprove stabilityOrganic active ingredientsOrganic chemistryDisulfide bondingPolymeric prodrug
Owner:UNIV OF SCI & TECH OF CHINA
Method for synthesizing cationic polycarboxylate superplasticizer based on Hoffmann rearrangement reaction
The invention discloses a method for synthesizing a cationic polycarboxylate superplasticizer based on a Hoffmann rearrangement reaction, and belongs to the field of water reducing agents. Unsaturated amide monomers are modified into unsaturated isocyanate, meanwhile, an oxidation-reduction initiating system is formed by high-valence cerate and alcohol to initiate polymeric unsaturated cation quaternary ammonium salt monomers, a hydroxyl-terminated cation side chain is obtained, then isocyanate reacts with the hydroxyl-terminated cation side chain and polyethylene glycol monomethyl ether to obtain cationic macromonomers and polyether macromonomers, then the cationic macromonomers, the polyether macromonomers and small carboxylic acid monomers are subjected to free radical copolymerization, and the cationic polycarboxylate superplasticizer is obtained. Based on the Hoffmann rearrangement reaction principle, unsaturated amide modified amide reacts with the cation side chain and a polyether side chain, the macromonomers with different structures and different functions are designed and synthesized, and the novel pectinated polycarboxylate superplasticizer with polycarboxylic acid as a main chain and cations and polyether as the side chain is obtained finally. The synthesis process is continuous and easy to control, and multiple effects of excellent water reduction, collapse protection, clay resistance and the like are shown.
Owner:中铁一局集团工业贸易有限公司
Pterodontic acid derivatives as well as preparation method and application thereof
PendingCN111978198AImprove stabilityGood anti-influenza virus activityOrganic compound preparationCarboxylic acid esters preparationInfluenza A (H1N1) virusViral infectious disease
The invention relates to pterodontic acid derivatives as well as a preparation method and application thereof, and belongs to the technical field of natural pharmaceutical chemistry. A series of pterodontic acid derivatives including C-5, C-12 and C-13 derivatives and the like are prepared by the method. The pterodontic acid derivatives prepared by the method have the advantages of being good in influenza A H1N1 virus resisting effect, good in stability, high in yield and the like. The derivatives play an important role in preparing medicines for treating virus infectious diseases such as influenza and the like. Meanwhile, the preparation method is simple and easy to implement, high in universality and easy to apply and popularize, and the yield of derivatives is larger than or equal to 80%.
Owner:YUNNAN UNIV OF TRADITIONAL CHINESE MEDICINE
Foam metal-carbon nano tube composite material and preparation method thereof
InactiveCN106757282AExcellent dimensional propertiesLarge specific surface areaElectrophoretic coatingsPlatinumOrganic solvent
The invention relates to a foam metal-carbon nano tube composite material and a preparation method thereof. The foam metal-carbon nano tube composite material comprises a foam metal base layer and a carbon nano tube film layer on the foam metal base layer, wherein the thickness of the carbon nano tube film layer is 0.1-10 nm. The preparation method of the foam metal-carbon nano tube composite material particularly comprises the following steps: cleaning the foam metal base layer; adding carbon nano tubes into an electrolyte and an organic solvent to obtain a mixed electrolyte, and performing ultrasonic treatment for 1-5 h; then taking a platinum electrode as an anode and foam metal as a cathode, and placing in the mixed electrolyte; switching on a DC power supply; depositing for 1-50 min under the voltage of 80-160 V; and taking out a cathode material, and drying to obtain the foam metal-carbon nano tube composite material, wherein the concentration of the electrolyte in the mixed electrolyte is 0.1-0.6 mg / ml; and the parallel space between the anode and cathode is 1-3 cm. The foam metal-carbon nano tube composite material has high electromagnetic shielding effectiveness and can serve as an electromagnetic shielding material.
Owner:CHANGDE LYRUN MATERIAL
Preparation method of tatting-imitated gabardine warp-knitted twill fabric
The invention discloses a preparation method of tatting-imitated gabardine warp-knitted twill fabric, and belongs to the technical field of textiles. According to the method, staple fiber yarn and elastic chemical fiber filaments are selected as raw materials and woven on a five-guide-bar warp knitting machine, a chaining mat-lacking weave is selected as a basic structure, and a re-warp chaining weave is selected as a bottom comb structure, so that distribution of extension lines shows the effect of twill weave, and thus the tatting-imitated gabardine warp-knitted twill fabric is prepared. Thefabric can keep a good twill grain effect when being stressed, the polyester-covered ammonia yarn is used as a ground weave raw material, and warp rib weave is used as a ground weave structure, so that the fabric is good in elasticity and tight in retraction and meanwhile can still keep the good grain effect when the fabric is transversely stressed or longitudinally stressed, and the grain of thefinished fabric is clear.
Owner:JIANGNAN UNIV
Photoinduced carbon quantum dot and preparation method thereof
ActiveCN113249122AImprove control abilityGood reproducibilityOrganic chemistryNanoopticsHigh energyUltraviolet lights
The invention belongs to the technical field of nano materials, and particularly relates to a photoinduced carbon quantum dot and a preparation method thereof. Phenothiazine-diphenyl sulfone-indole is used as a carbon quantum dot precursor, and free radicals in a system can effectively oxidize a self-assembly body and carbonize the self-assembly body into carbon quantum dots with the size of 2-10 nm under continuous irradiation of ultraviolet light. The preparation method disclosed by the invention is simple to operate and mild in reaction, overcomes the defects of high pressure, high temperature and high energy consumption of traditional carbon quantum dots, and is high in yield and high in reproducibility. The prepared carbon quantum dot can effectively retain oxygen responsiveness, solvent dependence and other related properties of a precursor material, and also has unique properties of a carbon quantum dot material, such as excitation dependence of covering a full visible spectrum from blue light to red light, and these properties have unique advantages for developing novel optoelectronic devices, quantum dot probes and the like in the future.
Owner:FUDAN UNIV
Speech synthesis method and device
PendingCN113539236ABroaden design ideasBroaden application scenariosSpeech synthesisSynthesis methodsSpeech synthesis
The embodiment of the invention provides a speech synthesis method and device, and the method comprises the steps: obtaining an input text and a style generation module, and obtaining a style feature representation according to the input text and the style generation module; obtaining a tone mark and a target speech synthesis model; wherein the target speech synthesis model is obtained by training based on a pre-trained duration extraction model used for extracting related duration representation and a style feature module used for extracting style feature representation; and according to the input text, the style feature representation, the tone mark and the speech synthesis model, obtaining an emotional speech with a corresponding style and a corresponding tone. The emotion speech synthesis of the custom style is realized through the extraction and preprocessing mode of the custom emotion feature representation, the effect that the style of the synthesized speech is suitable for all timbres in a corpus is realized on the basis of supporting the custom of the synthesized speech style, and the purpose of the semi-supervised emotion speech synthesis of the custom style is achieved.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD
Mobile terminal, rear cover assembly thereof and forming method of rear cover assembly
InactiveCN105904158AEasy to process independentlyIncrease freedomTelephone set constructionsEngineering
The invention discloses a mobile terminal, a rear cover assembly thereof and a forming method of the rear cover assembly. The rear cover assembly includes an upper decoration piece, a lower decorative piece, a left decoration piece, a right decoration piece and a rear cover. The upper decoration piece is connected with the upper ends of the left decoration piece and the right decoration piece separately. The lower decoration piece is connected with the lower ends of the left decoration piece and the right decoration piece separately. The peripheral wall of the rear cover is matched with the lower end of the upper decoration piece, the upper end of the lower decoration piece, the left side of the right decoration piece and the right side of the left decoration piece, wherein the upper decoration piece, the lower decoration piece, the left decoration piece, the right decoration piece and the rear cover are all independently processed forming pieces. According to the invention, the upper decoration piece, the lower decoration piece, the left decoration piece, the right decoration piece and the rear cover can be assembled into the rear cover assembly. When the rear cover assembly is applied to the mobile terminal, higher freedom degree is provided for integral design of the mobile terminal.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Wheel blocking hydraulic station of rotary kiln
The invention disclose a wheel blocking hydraulic station of a rotary kiln, which comprises a control valve group, a return oil filtering device, a pump device, a heater, a liquid level control device, an oil temperature control device and an oil tank, wherein the control valve group, the return oil filtering device, the pump device, the liquid level control device and the oil temperature control device are mounted on the top of the oil tank; the heater is arranged on the side wall of the oil tank; the control valve group is connected with the return oil filtering device through a pipeline; the control valve group and the return oil filtering device are connected with the pump device through pipelines respectively; the liquid level control device is arranged on the pump device; and the hydraulic station is provided with a combined speed regulating loop of an inlet oil line speed regulating loop and a bypass oil line speed regulating loop. The wheel blocking hydraulic station of the rotary kiln disclosed by the invention not only provides a control loop which is available for super-low-speed steady running for the fluid design field, even more important, expands the design idea of super-low-speed steady running. The wheel blocking hydraulic station of the rotary kiln can be applied not only to speed control of a rotary kiln for producing powdered products but also to other occasions available for super-low-speed running.
Owner:大连维乐液压制造有限公司
Wheel blocking hydraulic station of rotary kiln
The invention disclose a wheel blocking hydraulic station of a rotary kiln, which comprises a control valve group, a return oil filtering device, a pump device, a heater, a liquid level control device, an oil temperature control device and an oil tank, wherein the control valve group, the return oil filtering device, the pump device, the liquid level control device and the oil temperature control device are mounted on the top of the oil tank; the heater is arranged on the side wall of the oil tank; the control valve group is connected with the return oil filtering device through a pipeline; the control valve group and the return oil filtering device are connected with the pump device through pipelines respectively; the liquid level control device is arranged on the pump device; and the hydraulic station is provided with a combined speed regulating loop of an inlet oil line speed regulating loop and a bypass oil line speed regulating loop. The wheel blocking hydraulic station of the rotary kiln disclosed by the invention not only provides a control loop which is available for super-low-speed steady running for the fluid design field, even more important, expands the design idea of super-low-speed steady running. The wheel blocking hydraulic station of the rotary kiln can be applied not only to speed control of a rotary kiln for producing powdered products but also to other occasions available for super-low-speed running.
Owner:大连维乐液压制造有限公司
Asynchronous motor frame
ActiveCN103066736BReduce temperature riseBroaden design ideasSupports/enclosures/casingsInduction motorEngineering
Owner:ANHUI WANNAN ELECTRIC MACHINE
Pattern weave, two-layer or multi-layer cloth and weaving process of two-layer or multi-layer cloth
PendingCN113818119ASimple designBroaden design ideasMulti-ply fabricsTextile technologyPolymer science
The invention belongs to the technical field of textiles, and particularly relates to a pattern weave, two-layer or multi-layer cloth and a weaving process of the two-layer or multi-layer cloth. The pattern weave is a basic weave, a combined weave or a variable weave formed by interweaving warp floating long weaves and weft floating long weaves. The two-layer or multi-layer cloth comprises the pattern weave. The weaving process of the two-layer or multi-layer cloth comprises the following steps of (1) uniformly dividing warp and weft yarns into 3 to 4 equal parts, wherein 1 to 2 equal parts of the warp and weft yarns are combined with the pattern weave according to the claim 1 to form a pattern layer; and (2) layering the remaining warp and weft yarns, forming patterns by changing the positions of the upper layer and the lower layer between the layers, and connecting the layers, or forming the patterns through connecting points. According to the pattern weave, the two-layer or multi-layer cloth and the weaving process of the two-layer or multi-layer cloth provided by the invention, by adjusting the weave structure, the defects that an original product is thick and heavy, poor in moisture absorption and air permeability, not fluffy enough in hand feeling and the like are overcome, meanwhile, the product design thought is widened, and the product design is more distinct and richer in gradation.
Owner:懋纬工业设计(山东)有限公司
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