920results about How to "Selective" patented technology

The invention discloses a method for manufacturing metal part solidification structure by a non-contact control added material and a magnetron metal 3D printing device. An electromagnetic field is applied in the quick solidification process of metal 3D printing; under the effect of the electromagnetic field, thermocurrent can be generated on a quickly solidified solid / liquid interface; the thermocurrent and the magnetic field are interacted to generate thermal electromagnetic force for triggering flowing of a melt; the end part of a dendritic crystal is shorn after suffering from the effect of the force to cause fragment of the dendritic crystal to form a lot of new crystal nucleus; and on the other hand, the temperature gradient of the front edge of the solid / liquid interface is slowed down through flowing of the melt, so that the constitutional supercooling of two phase regions is increased, the nucleation rate is increased. The method refines grains, improves the morphology of the grains, enables the structure to become uniform and compact, and realizes the structure control of metal 3D printing parts.

The invention discloses a pyrimidoheterocyclic compound represented as the formula (I), or a pharmaceutically acceptable salt or a stereisomer thereof, or a prodrug molecule thereof. The pyrimidoheterocyclic compound can effectively inhibit growth of various tumor cells and has an inhibiting effect on EGFR protease. The pyrimidoheterocyclic compound can be used for preparing an anti-tumor drug, and can overcome drug resistance caused by medicines in the prior art, such as gefitinib, erlotinib and the like, has a selectivity on wild non-small cell lung cancer and is excellent in pharmacokinetic property.

Various systems, methods, and media allow for graphical display of multivariate data in parallel coordinate plots and similar plots for visualizing data for a plurality of variables simultaneously. These systems, methods, and media can aggregate individual data points into curves between axes, significantly improving functioning of computer systems by decreasing the rendering time for such plots. Certain implementations can allow a user to examine the relationship between two or more variables, by displaying the data on non-parallel or other transformed axes.

The invention relates to a water quality multi-index detection method on the basis of an ultraviolet-visible absorption spectrum. The method comprises the following steps: (1) establishing a water quality algorithm model comprising each water quality index; (2) measuring to obtain the ultraviolet-visible absorption spectrum of the to-be-detected water; (3) calculating to obtain a primary calculation value of each water quality index in the to-be-detected water according to the water quality algorithm model and the ultraviolet-visible absorption spectrum of the to-be-detected water; (4) locally correcting the primary calculation value of each water quality index in the to-be-detected water to obtain a detection result corresponding to each water quality index; and (5) comparing the obtained detection result corresponding to each water quality index and relevant water quality standard of each water quality index, judging whether the to-be-detected water quality exceeds the standard or not and issuing an alarm. By measuring the ultraviolet-visible full-wavelength absorption spectrum of the detected water, combining with the water quality algorithm model and correction parameters, each water quality index in the water can be synchronously calculated. The method can be widely suitable for monitoring and alarming for various kinds of surface water, various kinds of sewage, drinking water, and for control of sewage and water supply treatment processes.

The disclosure relates to a method whereby a user is provided with a gesture for e.g. editing work on a touch sensing device. By using two objects, e.g. two fingers, on a touch surface of the touch sensing device the user may zoom in or zoom out of a graphical element, halt the zooming, and thereafter crop the graphical element to define a new cropped element of the graphical element. The method makes use of a distance between the two objects, which is determined and monitored. The disclosure also relates to a gesture interpretation unit and to a touch sensing device.

The invention discloses an intelligent vehicle navigation system based on perception and autonomous calculation positioning navigation, and the system comprises an information storage module, a motor drive module, a positioning module, a perception module and an interaction communication module, wherein the information storage module, the motor drive module, the positioning module, the perception module and the interaction communication module are respectively connected with a central processor. The central processor, the drive module and the positioning module are used for achieving the positioning navigation and movement of an intelligent vehicle, and the perception module is used for achieving the stable control of the intelligent vehicle. The interaction communication module is used for achieving man-machine interaction. The navigation process comprises the steps: obtaining a generalized electronic map; obtaining initial position information of the vehicle and carrying out the positioning correction; obtaining the current position coordinates of the vehicle and target coordinates; and dynamically planning a driving path. According to the invention, the independent perception and feedback control of wheels are employed for the path of a local region and the control optimization, and the overall path planning and navigation are still implemented through a path planning algorithm. The system can monitor and distribute tasks in real time through a cellphone or tablet PC and a wireless network, and achieves the visualization and the real-time control.

The invention discloses a method for preparing a graphene composite material adsorbing polycyclic aromatic hydrocarbon pollutants. The graphene composite material is prepared by dispersing the graphene in a precursor solution of a support body material and enabling the precursor of the support body material to generate cure reaction. The specific preparation steps and adsorption process are as follows: (1) preparing a graphene dispersion solution; (2) preparing the precursor solution of the support body material; (3) mixing the graphene dispersion solution and the precursor solution of the support body material; (4) initializing the precursor solution of the support body material for cure reaction, and adding graphene to obtain the graphene composite material; and (5) soaking the prepared graphene composite adsorption material in a polycyclic aromatic hydrocarbon solution, wherein the polycyclic aromatic hydrocarbon is adsorbed on the surface of graphene due to pi-pi mutual action between the graphene and the polycyclic aromatic hydrocarbon. According to the invention, the enrichment and adsorption capacities of the graphene on the polycyclic aromatic hydrocarbon are improved by means of large pi system and super large specific surface area.

The invention relates to an alkaline buffering solution for establishing a DNA coding compound library and an application thereof. The alkaline buffering solution is a boric acid buffering solution with the concentration of 250mM, the electric conductivity of the boric acid buffering solution is 5177ppm+ / -10 percent, the density is 1.0246 g / mL+ / -3 percent, and the pH is 9.4+ / -0.1. The buffering solution has the characteristics of wide substrate application range and high universality and is applied to the amide synthetic reaction of DNA-CO2H and small molecular organic amine and applied to thereduction ammonolysis reaction for generating imine from DNA-NH2 and small molecular organic aldehyde and reducing the imine by virtue of sodium borohydride, and has the advantage of high conversionrate. The various alkaline buffering solutions prepared in the invention and used for synthesizing the DNA coding compound library is mild in reaction conditions, simple in operation, wide in substrate application range, relatively high in applicability and suitable for the mass synthesis of the DNA coding compound library.

The invention discloses a method for hydrolyzing lignocellulose. Lignocellulose is pulverized into particles, and the particles are mixed with water to form even seriflux; the seriflux is preheated to60-150 DEG C by using ultrasonic waves or microwaves; the preheated even seriflux is quickly heated to 120-300 DEG C, solid alkali is added and used as a catalyst, and stirring and catalytic reactionare simultaneously carried out for 15-300 minutes. The use of the ultrasonic waves or microwaves radiation in synergism with solid alkali for catalyzing and hydrolyzing the lignocellulose can greatlyreduce the reaction time as well as energy consumption. The solid alkali catalyst can be repeatedly used, is easily separated from an aqueous solution, and has the advantages of high mechanical strength, high durability, certain selectivity, relative singularity of catalytic hydrolyzate, high hydrolyzing efficiency and good market application prospect.

The invention relates to a method for fabricating an integrated circuit with a resistance memory, comprising the following steps: providing an interlaminar dielectric layer comprising a core component area and a peripheral circuit area; forming a first interconnection structure and a second interconnection structure which are respectively formed by a blocking layer and a metal wiring structure in the interlaminar dielectric layer; forming a blocking dielectric layer on the interlaminar dielectric layer; etching the blocking dielectric layer to expose the metal wiring structure of the core component area; forming a first dielectric layer on the metal wiring structure; forming a first conductive layer covering the blocking dielectric layer and the first dielectric layer; forming a masking film on the first conductive layer; etching the first conductive layer and the blocking dielectric layer until the second interconnecting structure is exposed; keeping the first conductive layer and a blocking dielectric layer on the first interconnecting structure; and forming a second conductive layer and a third conductive layer respectively on the first conductive layer and the second interconnecting structure. Due to the adoption of the method for fabricating the integrated circuit with the resistance memory, when the resistance memory is formed, the interlaminar interconnection structures of the core component area and the peripheral circuit area can be also formed.

The invention provides an amino-functionalization magnetic silicon dioxide-ferroferric oxide composite nanomaterial. The material is characterized in that a microsphere structure is formed as magnetic ferroferric oxide is used as an inner core, silicon dioxide is used as an outer-layer coating material, amino groups with positive charges are used as functionalization modifying groups. The invention also provides a preparation method of the material, and an application of the material in water environment pollutant trace chemistry detection. The material is simple in preparation method, low in cost, high in extraction efficiency and high in adsorptive property, has selectivity on complex organic pollutants, is a reproducible environment-friendly novel material, and can be applied in trace chemistry analysis of a plurality of kinds of complex organic pollutants (particularly pollutants with negative charges) in a water environment.

Method for preparing the disclosed fuel cell includes steps: (1) using porous stainless steel as supportor; depositing porous anodal thin film, compact solid electrolyte film, and reaction barrier layer in sequence on the supportor to be as half cell; carrying out sintering under reducing atmosphere or inert atmosphere; (2) cooling after sintering, depositing active layer of cathode and contact layer of cathode on solid electrolyte film right along; carrying out sintering under air atmosphere so as to obtain cell; (3) dipping reforming catalyst for supportor of porous stainless steel so as to obtain fuel cell. Through the supportor, various fuel gases reformed to anodic gas rich in hydrogen enters into anode to carry out electrochemical reaction.

The invention discloses a method for hydrolyzing lignocellulose. Lignocellulose is pulverized into particles, and the particles are mixed with water to form even seriflux; the seriflux is preheated to60-150 DEG C by using ultrasonic waves or microwaves; the preheated even seriflux is quickly heated to 120-300 DEG C, solid acid is added and used as a catalyst, and stirring and catalytic reaction are simultaneously carried out for 15-300 minutes. The use of the ultrasonic waves or microwaves radiation in synergism with solid alkali for catalyzing and hydrolyzing the lignocellulose can greatly reduce the reaction time as well as energy consumption. The solid acid catalyst can be repeatedly used, is easily separated, and has the advantages of high mechanical strength, high durability, certainselectivity, relative singularity of catalytic hydrolyzate, high hydrolyzing efficiency and good market application prospect.

Treatment of pulmonary disorders associated with hypoxemia and / or smooth muscle constriction and / or inflammation comprises administering into the lungs as a gas compound with an NO group which does not form NO2 / NOx in the presence of oxygen or reactive oxygen species at body temperature. Treatment of cardiac and blood disorders, e.g., angina, myocardial infarction, heart failure, hypertension, sickle cell disease and clotting disorders, comprises administering into the lungs as a gas, a compound which reacts with cysteine in hemoglobin and / or dissolves in blood and has an NO group which is bound in said compound so that it does not form NO2 / NOx in the presence of oxygen or reactive oxygen species at body temperature. Exemplary of the compound administered in each case is ethyl nitrite.

The invention discloses a preparation method for a silver-zinc oxide nano-composite structure. The method is simple, efficient and environmentally friendly. The method comprises the steps that the characteristic that electric charges carried by zinc oxide and electric charges carried by nano-silver are opposite is utilized, and nano-zinc oxide powder carrying the positive electric charges is added into nano-silver sol with the negative electric charges in a certain proportion; ultrasonic dispersion or mechanical agitation is performed, so that the nano-zinc oxide powder and the nano-silver sol are fully mixed; on the basis of electrostatic interaction, nano-silver particles are loaded onto the surface of the nano-zinc oxide; afterwards, the obtained solid product is separated through centrifugation or filtration, and the solid product is washed several times with ethyl alcohol and dried to obtain the target product. The preparation method is simple and easy and convenient to implement, the range of the raw materials is wide, neither a surface active agent nor a molecular coupling agent needs to be added, the method is low in energy consumption, free of pollution and environmentally friendly, the product is even in load, the size of loaded silver particles and the amount of load can be regulated and controlled, the interface is clean, and the method is beneficial to accurate regulation and control over the antibacterial activity, photocatalytic properties and surface-enhanced Raman scattering properties of silver-zinc oxide nano-composite structure.

The invention discloses preserved passion fruits and a processing method thereof. The method comprises the concrete steps of firstly, cleaning and cutting fresh passion fruits as raw materials, and separating peels from pulp by removing the pulp; secondly, boiling the peels, removing cuticula, enzymatically hydrolyzing, protecting the color and sugaring; thirdly, mixing the pulp with white granulated sugar and citric acid or citric acid to prepare mixed pulp, and burying the mixed pulp into the peels; finally performing processes of drying, cooling and the like to prepare finished products of preserved passion fruits. According to the method, the selectivity on fruit raw materials is good; the processed preserved passion fruits keep the original aroma and taste of passion fruits, are bright as ever and soft in mouth feel, and have remarkable market competition advantages; a new way is opened up for deep processing of the passion fruits, a very good method is provided for improving the value of the passion fruits, and relatively large profit space is created for enterprises.

The invention discloses a pyrimidoheterocyclic compound represented as the formula (I), or a pharmaceutically acceptable salt or a stereisomer thereof, or a prodrug molecule thereof. The pyrimidoheterocyclic compound can effectively inhibit growth of various tumor cells and has an inhibiting effect on EGFR protease. The pyrimidoheterocyclic compound can be used for preparing an anti-tumor drug, and can overcome drug resistance caused by medicines in the prior art, such as gefitinib, erlotinib and the like, has a selectivity on wild non-small cell lung cancer and is excellent in pharmacokinetic property.

The invention provides a pure inorganic perovskite light emitting diode device manufacturing method. The method comprises the following steps: (1) an ITO transparent conductive glass substrate is subjected to standardized cleaning and drying and then pretreatment; (2) the ITO is transferred to a vacuum cavity, and evaporation on a hole injection layer and a transport layer is carried out; (3) a dual source co-evaporation method is adopted, and a pure inorganic CsPbX3 perovskite light emitting layer thin film is formed through evaporation; (4) an infrared thermal radiation device is used to carry out thermal treatment on the CsPbX3 perovskite film; and (5) an electron transport layer, an electron injection layer and a metal cathode are formed through thermal evaporation. The manufacturing process is simple and convenient, the manufacturing difficulty is low, the full vacuum evaporation method is adopted to manufacture the device, the manufacturing is easy, the repeatability is good, and the device performance is stable; and through the dual source co-evaporation manufacturing method, the smoothness and the uniformity of the thin film are improved, replacement of a subject material and an object material is facilitated, the ratio of the two can be changed, and regulation on the position of a light emitting peak is realized.

The invention relates to a deepwater semi-submerged drilling platform, which comprises floating tanks, an upright post, a transverse supporting rod and a main deck, wherein a drilling block is arranged above a moon pool in the middle of the main deck; and a derrick is arranged on the drilling block. The deepwater semi-submerged drilling platform is characterized in that: a half derrick space for pre-connecting a drilling tool is reserved on one side of the derrick; a water isolating pipe, a drilling stem, a blowout preventer and a production tree are arranged on the main deck around the moon pool respectively; and an anchor moored positioning and dynamic positioning combined position system which consists of front and back four groups of anchor gears distributed on the left and right sides of the main deck is adopted, each group of anchor gears are provided with 3 anchor chains, a dynamic positioning system consists of 8 dynamic thrusters capable of rotating 360 degrees at the front and back four corners of the bottom of the two floating tanks. In the deepwater semi-submerged drilling platform, the maximum operation water depth is up to 3,000 meters, the maximum drilling depth is up to 12,000 meters, and the maximum variable load is up to 9,000 tons. The deepwater semi-submerged drilling platform can operate in the South China Sea, Southeast Asian sea area and West Africa sea area with severe sea conditions efficiently and safely.

The invention provides a quasi-cyclic low-density odd-even check convolution code coding-decoding system and a coding-decoding method thereof and belongs to the technical field of digital signals, wherein the system comprises a code word constructor, a coder module and a decoder module; and the code word constructor generates check mother matrixes, transfers the corresponding information such as data access addresses and translocation factors to the coder module and the decoder module respectively and stores the information in the respective mother matrix memory cells, the coder module obtains the input data from the information source and transfers the coded output data to a channel, and the decoder module obtains the input information from the channel and outputs the decoded information. By adding the quasi-cyclic unit matrixes, the system achieves the better decoding performance by less iterations so that the hardware cost is obviously reduced; the quasi-cyclic unit matrixes adopt the low-density check code structure, and the concurrent operation can be performed in both coding and decoding process so that the decoding clock delay is effectively reduced, and the throughput rateis greatly improved.

A combined process for treating heavy metal complexing waste water is disclosed and belongs to the field of waste water treatment. The combined process includes steps of: (1) adding a ferric salt into the complexing waste water containing the target heavy metal to subject the ferric salt and the target heavy metal to a replacement reaction so as to release a target ion; (2) subjected the waste water after replacement to ultraviolet light irradiation to destroy complexes in the waste water; and (3) adjusting the pH value of the waste water to precipitate the target metal and iron, performing solid liquid separation to complete the processing process of the waste water. The combined process mainly destroys carboxyl of a complexing agent, so that the combined process has certain selectivity. Compared with methods in the prior art that degrade organic matters by utilization of hydroxyl radicals, the combined process has higher selectivity. When the content of a complexing mechanism in the total organic matters is not high, the combined process can maintain a high utilization rate.

The invention discloses an amphipathic chitosan derivative PAMAM-Cs-DCA (Poly(amido amine)-chitosan-deoxycholic acid). The PAMAM-Cs-DCA is prepared by sequentially grafting a PAMAM unit and a deoxycholic acid unit on a main chain of chitosan by click chemical reaction and amidation reaction. The preparation method has mild reaction conditions, high efficiency and selectivity. The invention also discloses an application of the amphipathic chitosan derivative in preparing an anticancer drug carrier: the amphipathic chitosan derivative forms nanomicelle which takes the PAMAM unit and chitosan asa hydrophilic shell and takes the DCA unit as a hydrophobic core by self assembly in a water solution, wherein hydrophobic anticancer drugs can be coated in the core, and the shell can be compounded with pDNA (plasmid deoxyribonucleic acid) to realize co-transmission of the drugs and genes. Due to the unique molecular structure, the amphipathic chitosan derivative has potential application valuesin the fields of gene therapy, controlled release of drugs, tissue engineering and the like.

This invention discloses a method for carbon-coated ferrous lithium phosphate composite material from ferric phosphate. The method comprises: (1) reducing Fe3+ of ferric phosphate into Fe2+ by a liquid-phase reducer; (2) reacting with NH4+ in the solution to obtain ferrous ammonium phosphate; (3) reacting with Li source at a high temperature and in inert atmosphere to obtain ferrous lithium phosphate; (4) coating with carbon to obtain carbon-coated ferrous lithium phosphate composite material. The method adopts Fe3+ as the raw material, thus reducing the costs of the raw material and the processing. The obtained composite material has such advantages as high purity and good electrochemical performance, and can be used as the cathode material of Li-ion batteries.

A method for cyclic utilization of rejected biomass includes such steps as decomposing in a multi-class fermenting pool, gas-solid-liquid separation, desulfurizing the marsh gas containing H2 and methane, feeding the marsh gas in the fuel battery with anionic exchange membrane, generating CO2 at negative electrode, using the separated liquid for soilless culture of plants, using said fuel battery to power the artificial light source, and using the residual dregs as the crop culturing matrix or organic fertilizer.

The invention relates to a preparing method of an amino carbon quantum dot fluorescence silicon substrate imprint sensor and belongs to the technical field of preparation of an environment function material. The preparing method comprises the following steps: dissolving citric acid and a polymine solution to obtain a transparent solution, then transferring to a hydrothermal reaction kettle for reaction, and then cooling to room temperature to obtain dispersion liquid of amino carbon quantum dots; centrifuging the dispersion liquid to obtain an amino carbon quantum dot solution; then taking the amino carbon quantum dots as fluorescence carriers, p-nitrophenol as template molecules, (3-aminopropyl) triethoxy silane as a function monomer, and tetraethoxysilane as a cross-linking agent so as to obtain a fluorescence molecular imprinted polymer to be used for optical detection of p-nitrophenol. The amino carbon quantum dot fluorescence molecular imprinted polymer has very good optical and pH stabilities and has te capacity of selectively recognizing p-nitrophenol.

The invention provides a network anomaly detection method based on an artificial immunity principle belonging to information safety field. The invention implements the network anomaly detection method capable of fast detecting with high detection accuracy by simulating biological immune system response to external antigen, training antigen data collection and artificial immune system study, and detecting network anomaly. The network anomaly detection method has superior characteristics of a non-linearity of the biological immune system, cloning selection, immune network and immunological memory, solves the problems of low detection speed and low detection accuracy in the present network anomaly detection. The invention also applies to the pattern recognition, machine learning fields and has wide application prospect.

The invention relates to a biofeedback photoelectric therapeutic device comprising an information collection system, a control system and a biofeedback therapeutic system, wherein the information collection system is used for collecting physiologic information of a human cranial part in real time and transferring the physiologic information to the control system for analysis treatment; and the control system is used for controlling the biofeedback therapeutic system according to an analysis treatment result of the physiologic information to carry out the photoelectric stimulation therapy of corresponding nervous system diseases. The biofeedback photoelectric therapeutic device is used for measuring biological, chemical or physical signals of related tissues, particularly focal tissues through the information collection system, and the biofeedback therapeutic system is used for adopting corresponding therapeutic measures according to detected signal data. The invention has specificity, selectivity, stronger purposive property and safer and effective therapy.

The present invention is catalytically cracking co-catalyst for raising diesel oil yield and its preparation process. The co-catalyst is prepared with sprayed microballoon containing kaolin, pseudo boehmite and water galss, and through high temperature roasting over 900 deg.c, extraction with sodium hydroxide or other strong alkali to form pore channels, and final supporting phosphorus and RE oxide. The co-catalyst contains phosphorus in 1-3.5 wt%, RE oxide in 1-5 wt%, no zeolite component and sodium oxide less than 0.6 wt%. Adding certain amount of the co-catalyst into FCC catalyzing apparatus can raise diesel oil yield, improve product distribution and raise the utilization rate of available catalyst.

The invention discloses a nano antibacterial and anti-fingerprint solution material as well as a preparation method and an application thereof. The nano antibacterial and anti-fingerprint solution material comprises components as follows: methyl nonafluorobutyl ether, ethyl perfluorobutyl ether, ethyl nonafluorobutyl ether, perfluoro silicone oil, nano Ag<+> ion granules and perfluoropolyether alkoxy silane. The preparation method of the material comprises the step of magnetically and evenly mixing the components gradually. The application of the material comprises a film and a mobile phone cover plate comprising the film. The nano antibacterial and anti-fingerprint solution material has excellent properties such as the antibacterial property, the anti-fingerprint property, the optical property, durability, mechanical properties and the like.

The present invention discloses one kind of Cu-Zr catalyst for steam reforming of methanol to prepare hydrogen and its preparation process. The catalyst without Zn and Al components contains CuO10-80 mol%, ZrO2 20-90 mol% and MOx 0-20 mol%, where M is one of Ce, La, Fe, Y and Mn. The Cu-Zr catalyst is used for steam reforming of methanol to prepare hydrogen, and has high activity, high hydrogen selectivity and very high stability. Specifically, it has conversion rate in steam reforming of methanol of 90-99 %, hydrogen selectivity of 95-99 % and CO content in the product lower than 0.5 %.