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81results about How to "Improve composition" patented technology

Nanocellulose/graphene composite flexible thin film as well as preparation method and application thereof

The invention discloses a nanocellulose / graphene composite flexible thin film as well as a preparation method and application thereof. According to the method disclosed by the invention, the surface of a graphene-shaped structure is uniformly coated with nanocellulose under the action of a hydrogen bond, Van der Waals force, a II-II bond and the like between a nanocellulose molecule and a graphenemolecule, so that a nanocellulose / graphene (CNC-G) composite flexible thin film with uniform distribution and a smooth surface is formed. The nanocellulose / graphene composite flexible thin film disclosed by the invention has good flexibility and transparency, can be uniformly dispersed in a solvent containing water and exists stably for a long time. The preparation method disclosed by the invention has the advantages of abundant raw material source, simple operation technology, low cost, greenness, environment friendliness, high efficiency and the like. The nanocellulose / graphene (CNC-G) composite flexible thin film disclosed by the invention has the advantages of high purity, uniformity in compounding and good composition structure and has a wide application prospect in the fields including flexible electronics, catalysis, electrochemistry and the like.
Owner:SOUTH CHINA UNIV OF TECH

Chemically-modified hard asphalt and preparation method thereof

The invention discloses chemically-modified hard asphalt and a preparation method thereof. The chemically-modified hard asphalt comprises the following components in parts by weight: 100 parts of basic asphalt, 0.5-3.0 parts of polyphosphoric acid, 2-12 parts of ductility increasing agent mother liquor and 0.2-0.4 part of a surfactant. The preparation method comprises the following steps: adding polyphosphoric acid into the melted basic asphalt for chemically-modified reaction, then adding the ductility increasing agent mother liquor for further reaction, and finally adding the surfactant for further reaction for a period of time to prepare the chemically-modified hard asphalt. The whole process is implemented under a high-speed stirring condition. The chemically-modified hard asphalt prepared by the preparation method disclosed by the invention is high in flow resistance, high in softening point, high in low-temperature ductility, high in bonding property with aggregate, and excellent in high temperature stability, low temperature cracking resistance, fatigue resistance and water invasion resistance; the chemically-modified hard asphalt is particularly suitable for areas with high temperature, wet areas and areas with large diurnal temperature difference and can be used for paving a pavement of a traffic road, so that common pavement damage phenomena such pavement rutting, upheaval, fatigue cracking, low-temperature cracking and water invasion of the pavement are effectively prevented, and the service life of the pavement is prolonged.
Owner:CHINA PETROLEUM & CHEM CORP +1

System and method for testing deformation characteristics of harmonic gear transmission flexible wheel

The invention provides a system and a method for testing deformation characteristics of a harmonic gear transmission flexible wheel. The system comprises an optical platform and a harmonic gear transmission system, wherein the harmonic gear transmission system comprises a servo motor bracket, a harmonic reducer bracket and a magnetic powder brake bracket which are sequentially arranged on the upper surface of the optical platform; a servo motor, a harmonic reducer and a magnetic powder brake are respectively mounted on the servo motor bracket, the harmonic reducer bracket and the magnetic powder brake bracket; a deformation data acquisition system is arranged between the servo motor bracket and the harmonic reducer bracket; the deformation data acquisition system comprises displacement frame upright columns; a displacement frame cross beam is arranged between the displacement frame upright columns; the displacement frame cross beam and the displacement frame upright columns can move relative to each other; and laser displacement sensors for acquiring the deformation amounts of the upper side and the left side of a harmonic reducer flexible wheel are arranged on the displacement frame upright column at the left side and the displacement frame cross beam. The system provided by the invention has the advantages of being low in cost, simple in structure, convenient to assemble anddisassemble, accurate in test and the like.
Owner:TSINGHUA UNIV

Visible light-control access control device with hidden channel

The invention discloses a visible light-control access control device with a hidden channel. The device comprises a light-control access control lock and a moving unlocking terminal; the light-control access control lock is composed of a light lock receiving module, a lock control module, a controlled module, a display module, a backlight module, a communication and alarm module and a power module; the moving unlocking terminal comprises a light emission module, a light key receiving module, a display scanning module and a terminal control module. According to the visible light-control access control device with the hidden channel, access control is achieved through mutual authentication of the light-control access control lock and the moving unlocking terminal; the hidden channel is established by means of the backlight module and the light key receiving module, lighting backlight is used for transmitting a key light signal, the moving unlocking terminal is authenticated by means of light information sent by the light emission module, the light-control access control lock is authenticated by means of graphic symbols of the display module and hidden key backlight signals of the backlight module, that is to say, the situation that an illegal moving unlocking terminal attempts to open access control can be prevented, and a counterfeit light-control access control lock can be prevented from intercepting user information and cracking an unlocking password.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

Data writing method and device and data reading method and device

Embodiments of the invention provide a data writing method and device and a data reading method and device. The data writing method comprises the following steps of: when an application process in a target server is started or restarted, obtaining main key configuration information from a database, wherein the main key configuration information at least comprises corresponding relationship among data table identifiers of one or more data tables in the database and/or a target server identifier and real-time main key information; storing the main key configuration information in the target server; obtaining business data to be written into a target data table; determining target main key information corresponding to the business data from the main key configuration information, wherein thetarget main key information at least comprises a target data table identifier and/or the target server business and a business data sequence of the business data; and writing the business data into the target data table by adoption of the target main key information, so as to distinguish the main key information, optimize a composition structure of the main key information, enhancing the timeliness of obtaining the main key information and enhancing the persistent business data writing performance.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Vacuum paste mixing process of lead-acid power battery

The invention discloses a vacuum paste mixing process of a lead-acid power battery, which is used for solving the problems of the paste mixing process of the prior art that the paste mixing temperature of the lead paste cannot be precisely controlled, the ratio of components in the prepared lead paste is unbalanced, the structure constitution is inconsistent, and thus the initial capacity and cycling performance of the lead paste are not ideal. The paste mixing process comprises the steps of feeding material, dry mixing, adding water, wet mixing, acidifying and stirring, wherein both the acidification and the stirring are performed in five steps, the acidification amount and lead paste temperature are controlled in each step of the acidification, the lead paste is maintained at the temperature of 72 to 82 2DEG C for 4 to 6 minutes in the acidifying process to form a generation stage of tetrabasic lead sulfate, the stirring time and cooling speed of the lead paste are controlled in each step of the stirring process, and the lead paste is maintained at the temperature of 45 to 50 DEG C for 0.5 to 1.5 minutes in the stirring process to form a performance stable stage. The process is simple in procedures, strong in operability and stable and controllable in process, and the prepared lead paste is good in consistent, high in initial capacity and good in cycling performance.
Owner:ANHUI YONGHENG STORAGE BATTERY

Liver-protecting and alcoholism-relieving composition and preparation method thereof

The invention discloses a liver-protecting and alcoholism-relieving composition and a preparation method thereof. The liver-protecting and alcoholism-relieving composition is prepared by mixing the following ingredients in parts by weight: 1-10 parts of mung bean peptides, 0.1-5 parts of corn peptides, 0.1-5 parts of isomalto-oligosaccharides, 0.1-5 parts of dietary fiber, 0.1-5 parts of a green coffee bean extract, 0.1-5 parts of a honeysuckle flower extract, 0.1-5 parts of xylo-oligosaccharides, 0.01-5 parts of a liquorice root extract, 0.01-5 parts of mogrosides, and 0.01-1 part of taurine.The liver-protecting and alcoholism-relieving composition disclosed by the invention is sweet and smooth in taste as well as obvious in pharmacodynamic action, and has the effects of protecting the livers and relieving alcoholism; moreover, the liver-protecting and alcoholism-relieving composition is capable of increasing upper limit of liquor intake of alcohol consumers, as well as relieving hangover symptoms including headache, dizziness and the like. In addition, the liver-protecting and alcoholism-relieving composition is also capable of improving intestinal flora combination and structure, so that the liver-protecting and alcoholism-relieving composition has good health-caring effects.
Owner:尚方制药有限公司
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