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2154results about How to "Complete structure" patented technology

Manufacturing method of paraffin sections of zostera marina embryo

The invention discloses a manufacturing method of paraffin sections of zostera marina embryo, comprising the following steps: (1) material drawing and fixation: zostera marina seeds are taken and the fruit skin is stripped, and after endosperm is removed, an integral zostera marina embryo is soaked in FAA (free amino acids) fixing solution and is fixed for more than 48 hours; (2) dehydration: the zostera marina embryo is taken out from the fixing solution and is soaked in alcohol for dehydration; (3) waxing and embedding: paraffin is added gradually in a vessel containing the zostera marina embryo and dimethylbenzene, and conventional paraffin embedding is carried out to obtain the wax blocks containing the zostera marina embryo; (4) slicing, spreading and drying: the wax blocks coated with the zostera marina embryo is fixed on a wheel rotation type slicing machine for carrying out continuous slicing of the paraffin, so as to obtain wax bands and enable the wax bands to be attached to an object slide; (5) dewaxing, rehydration and dyeing of hematoxylin dye solution; (6) slicing, dehydration and dyeing of eosin and alcohol; and (7) transparence and mounting are carried out to manufacture a permanent section. In the manufacturing method disclosed by the invention, the paraffin sections of the zostera marina embryo, which have clear dyeing and an integral texture structure, can be obtained.
Owner:SHANDONG ORIENTAL OCEAN SCI TECH

Multifunctional graphene electrothermal paste, multifunctional electrothermal film prepared by same, preparation method and application

The present invention discloses multifunctional graphene electrothermal paste, a multifunctional electrothermal film prepared by the same, a preparation method and application. The preparation methodcomprises the following steps that: (1) graphene nanoplatelets are modified by introducing inducible lipidation and cross-linking reaction groups; (2) the modified graphene, a lipidizable and cross-linking reaction emulsion and various kinds of additives are subjected to liquid phase mixing, the above dispersion liquid is induced to undergo in-situ esterification and cross-linking reaction, so that graphene-based homogeneous electrothermal paste can be formed; (3) an electrothermal paste loading matrix is modified, so that the interfacial property of the electrothermal paste and the matrix material can be enhanced; and (4) the graphene electrothermal paste can be combined with different base materials, so that electrothermal products can be prepared. The graphene electrothermal material ofthe invention has the advantages of adjustable resistivity, adjustable use voltage, adjustable heating efficiency, far infrared heating function, flame retardancy, wide application range, high safety, energy-saving performance and the like, and can be applied to home building material manufacturing, human body care, aviation equipment, medical equipment, transportation pipelines, automobiles andother fields.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI

Preparation method of nitrogen-doped zinc oxide film

The invention relates to the technical field of zinc oxide preparation, and in particular relates to a preparation method of a nitrogen-doped zinc oxide film. The preparation method comprises: placing a silicon substrate in the reaction cavity of atomic layer deposition (ALD) equipment; introducing gas containing a zinc source into the reaction cavity of the ALD equipment, wherein the zinc atoms in the gas containing the zinc source are adsorbed to the silicon substrate; conveying hydrogen to the reaction cavity of the ALD equipment based on nitrogen as a carrier gas, and simultaneously carrying out plasma discharge; introducing an oxygen-containing source to the reaction cavity of the ALD equipment, wherein the zinc atoms which do not react with nitrogen atoms form zinc-oxygen bonds withthe oxygen atoms in the oxygen-containing source; and repeating the steps, so as to grow the zinc oxide film containing the nitrogen atoms layer by layer. In the preparation method provided by the invention, nitrogen doping is carried out on the zinc oxide film by utilizing the ALD equipment; the method is simple and practicable; by utilizing the characteristic of atomic layer deposition and single-layer cycle growth, the uniform nitrogen doping in the whole film structure can be achieved in the process of zinc oxide film growth so that the doped film is complete in structure and excellent inproperty.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Multilanguage question and answer interface fast constituting method based on domain ontology and template logics

The invention relates to a multilanguage question and answer interface fast constituting method based on domain ontology and template logics. The method comprises the following steps of (1) multilanguage domain ontology structure building; (2) first-order template logic system building based on the domain ontology; (3) multilanguage question template structure design based on domain ontology and template logics; (4) domain-oriented question template base building; (5) user question preprocessing and question template matching; (6) user question semanteme obtaining and multilanguage intertranslation method. The multilanguage question and answer interface fast constituting method has the advantages that the question template semanteme can be more precisely expressed through the domain ontology and the template logics, the question template expression ability is improved by combining template operation characters, higher representativeness is realized, the template base scale can be reduced, in addition, a multilanguage body is similar to a multilanguage semantic dictionary, and the cross-language information inquiry can be easily realized. According to the method, various multilanguage man-machine interactive interfaces of field-oriented intelligent information retrieval and automatic question and answer systems can be fast constituted.
Owner:盐城市凤凰园科技发展有限公司

Nickel disulfide carbon nano composite material and preparation method and application thereof

The invention relates to a nickel disulfide carbon nano composite material and a preparation method and an application thereof, wherein the composite material is formed by coating a nickel disulfide nanosheet with a carbon layer. The preparation method comprises the following steps of preparing a nickel hydroxide nanosheet precursor by a hydrothermal method, performing magnetic stirring and dispersing in deionized water to obtain a uniform dispersion liquid of the nickel hydroxide nanosheet precursor, adding a buffering agent tris(hydroxymethyl) aminomethane hydrochloride, and adjusting the pHvalue to be 8.5 by adopting an alkali solution with the pH value of 13, adding dopamine hydrochloride, and magnetically stirring at room temperature for in-situ polymerization, and carrying out washing and centrifugally drying to obtain a nickel hydroxide nanosheet precursor/polydopamine composite material, and carrying out heat treatment and vulcanization with sublimed sulfur powder in a tubularfurnace in nitrogen atmosphere at a certain temperature to obtain the composite material. The preparation process is simple, easy to operate, green and non-toxic and friendly in material preparationprocess; and the prepared nickel disulfide carbon nano composite material is stable in structure, uniform in morphology and high in dispersion. The obtained nickel disulfide carbon nano composite material can be an ideal electrode material of a high-performance lithium ion battery, a supercapacitor and other new energy devices.
Owner:DONGHUA UNIV

Integer-order and fractional-order multifunctional chaotic experiment instrument

The invention discloses an integer-order and fractional-order multifunctional chaotic experiment instrument, which can be used for realizing experiment of a three-dimensional or four-dimensional integer-order or fractional-order chaotic system and can output a time-sequence diagram or a phase diagram by a dual-trace oscilloscope. The integer-order and fractional-order multifunctional chaotic experiment instrument comprises a shell and an internal circuit board, wherein the internal circuit board is arranged in the shell; the internal circuit board is provided with a power circuit, an I-part circuit and an II-part circuit; the I-part circuit and the II-part circuit are used for generating chaotic signals and are the same in circuit structure; each part consists of four channels; each channel comprises a signal input circuit, an adder circuit, an integral circuit and a chaotic signal output circuit; each adder circuit is respectively connected with the corresponding signal input circuit and the corresponding integral circuit; and the output end of each integral circuit is connected with the corresponding chaotic signal output circuit. The integer-order and fractional-order multifunctional chaotic experiment instrument disclosed by the invention is simple and reasonable in structure, good in stability, high in reliability and strong in practicability, can be used for teaching in a physical laboratory of the college, can also be used as common scientific and research equipment of the research institutions, and completely meets the research need of the current chaotic phenomenon.
Owner:YULIN NORMAL UNIVERSITY

Built-in type 4 axis sport controller

The invention discloses an embedded four-axis motion controller which comprises a main controller and a motion control module. An output of the main controller is connected with the motion control module through an output interface, and the motion control module is respectively connected with an X-axis motion component, a Y-axis motion component, a Z-axis motion component, and a U-axis motion component. The controller of the invention adopts an S3C44BOX chip based on an ARM7TDMI core which is promoted by the Samsung company as the main controller, adopts a motion control chip MCX314As which is specially used by the NOVA company in Japan as an interpolate controller, adopts a PC104 bus interface with strong insertion ability, combines the embedded CPU with a special DSP motion control chip, embeds the motion control function in the framework of the ARM main control plate with a PC 104 function module method, cuts off the equipment that is not in need, has a plurality of functions and saves the cost. The invention is an independent motion controller which can be separated from a host computer and is characterized by strong computing ability and low cost, thereby extremely reducing the size of the system, lowering the power consumption, and improving the reliability and the openness of the system.
Owner:GUANGDONG UNIV OF TECH

High-temperature expanded polymer microspheres and preparation method thereof

The invention provides high-temperature expanded polymer microspheres and a preparation method thereof and belongs to expandable particles. The high-temperature expanded polymer microspheres are prepared from a thermoplastic resin shell body and a foaming agent packaged in the shell body, wherein an oil-phase composition composed of a polymerizable monomer and a crosslinking agent can be dispersedinto a water-phase dispersed composition; in the presence of the foaming agent, the polymer microspheres coated with the foaming agent are directly prepared through carrying out suspension polymerization reaction and coating the foaming agent in situ; the high-temperature expanded polymer microspheres are characterized in that the oil-phase composition contains the polymerizable monomer and the crosslinking agent, and also comprises a silane coupling agent; the foaming agent is a mixture of isopentane, isooctane and n-octane; the high-temperature expanded polymer microspheres provided by theinvention have the advantages of complete core-shell structure, uniform grain diameter distribution, high foaming agent coating efficiency, good heat resistance of a shell-layer polymer, relatively high initial temperature in an expansion process, relatively high highest expansion temperature and high foaming ratio, have a relatively wide foam stabilizing temperature range, and are suitable for being applied to a thermoplastic resin, rubber or thermoplastic elastomer foaming and processing technology.
Owner:SHANDONG RUIFENG CHEM

Recovery method of positive active material in lithium ion battery waste material

The invention provides a recovery method of a positive active material in a lithium ion battery waste material. The method includes the following steps: S1, heat treatment of the waste material is performed at 350-500DEG C in inert gas or reducing gas atmosphere; S2, powder product obtained in the step S1 is sintered at 600-800DEG C in the inert gas or reducing gas atmosphere; and the positive active material is obtained by recovery; the positive active material is one or multiple substance selected from lithium phosphate, lithium silicate or a vanadium material of lithium. The positive active material obtained by recovery is high in charge and discharge capacity, and high in charge and discharge efficiency, the obtained positive active material is even in particle size distribution, and complete in crystal structure, the technical process of the recovery method is simple, the requirement on equipment is low, the process is easy to control, at the same time, the recovery process may not cause a negative impact on the active material, physical and chemical properties and electrochemical activity of the active material may not be affected, the recovery and reuse of the positive active material raw material can be realized, the cost can be saved, and the recovery method has environmental-friendly benefits.
Owner:BYD CO LTD

Method and device suitable for measuring fluffing and pilling amount and abrasion amount of textile

The invention relates to a method and a device suitable for measuring the fluffing and pilling amount and abrasion amount of a textile. The device is composed of a cloth sample barrel for coiling and clamping the textile, a rubbing mechanism for fluffing and pilling a cloth sample, a mini-type dust collector for collecting fallen fibers and fuzzy balls, an electrostatic electrode for assisting filoplume to be vertical, a collector for shearing and collecting the fuzzy balls and the filoplume, an optical measurement system for observing the fuzzy balls of the cloth sample, an electronic scale for weighing the weight of the filoplume fuzzy balls, a data acquisition and control system and a computer. The measurement method comprises the following steps: after coiling the cloth sample by equal tension, immediately measuring the filoplume significance as well as the quantity, form, size and distribution of the fuzzy balls; rubbing, fluffing and pilling to prepare a sample and synchronously measuring the process and measuring the filoplume significance of a final rubbing sample, the fuzzy ball quantity, the abrasion to the filoplume fuzzy balls and the remaining amount. The device and the method are ingenious, practical, accurate and quantitative; in-situ measurement for one machine with a plurality of purposes and one measurement process with a plurality of indexes is realized; the device and the method can be used for preparing the sample by fluffing and pilling the textile, measuring the fluffing and pilling amount and abrasion amount of the textile, and carrying out comprehensive analysis and evaluation.
Owner:DONGHUA UNIV

Method for preparing gold/titanium dioxide core-shell nanoparticle

The invention discloses a method for preparing a core-shell nanoparticle which contains a noble metal core. The method comprises the following processing steps of: (1) preparing a carbon nanosphere which contains noble metal; (2) covering a shell on the outside of the carbon nanosphere which contains the noble metal; and (3) preparing the core-shell nanoparticle which contains the noble metal core. In the step (2), the shell is covered by dissolving the carbon nanosphere which contains the noble metal core in absolute ethyl alcohol, utilizing ammonia to control the hydrolytic speed of tetrabutyl titanate or ethyl orthosilicate, and reacting to obtain the shell covered on the outside of the carbon nanosphere which contains the noble metal. In the step (3), processes of slow heating and low-temperature preservation are adopted for calcination. According to the process, the ammonia is utilized to control the hydrolytic speed of the tetrabutyl titanate or the ethyl orthosilicate, and high-temperature backflow of an organic solvent is not needed so that reaction conditions are milder. The method has the advantages of simple process flow and suitability for industrial production. The noble metal core obtained by using the method has the advantages of uniform size, good granularity and integral shell structure.
Owner:UNIV OF SCI & TECH BEIJING
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