34results about How to "Broaden research direction" patented technology

The invention discloses an earthquake precursor analysis method based on satellite thermal infrared data and a GIS. An earthquake prediction analysis is carried out by means of thermal infrared data +GIS, so that the accuracy is improved; the data for the analysis has the large source, so that the research effect is good. Besides, the research direction of the earthquake precursor is extended; and with the GIS way, all quantitative factor that may cause any influence on the earthquake occurrence are accommodated into spatial operation, so that the restriction of analysis of the geological factors and geological formation is eliminated.

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.

The invention discloses a PEDOT:CS water dispersion system taking cellulose sulfate as a template and a preparation method of the PEDOT:CS water dispersion system. The method comprises the following steps: adding cellulose sulfate into water to obtain a cellulose sulfate aqueous solution, and then adding a monomer EDOT to obtain a mixed solution; and adding ammonium persulfate and ferric chlorideinto the mixed solution for polymerization reaction to obtain a PEDOT:CS water dispersion system taking cellulose sulfate as a template. On one hand, the invention provides the method for preparing cellulose sulfate, and provides the new PEDOT water dispersion system by replacing PSS with cellulose sulfate as a polymerization template of PEDOT. On the other hand, the prepared PEDOT:CS aqueous dispersion has good system stability, high PEDOT content and high conductivity, and has good application prospects in the fields of electrochromism, electromagnetic shielding, supercapacitors, electrochemical sensors and the like.

The invention discloses a 3D video depth image prediction mode selection method based on the viewpoint correlation. The method comprises the steps of: preliminarily judging the possibility that a current coding block selects the Skip mode by utilizing the viewpoint correlation at first; and then, for the coding block having high possibility, comparing the rate distortion RD-cost of the Skip mode with the rate distortion RD-cost of the 2N*2N Merge mode and the DIS mode, determining whether the current block selects the Skip mode or not, and ending a prediction mode selection process in advance. By means of the 3D video depth image prediction mode selection method based on the viewpoint correlation disclosed by the invention, the depth image prediction coding complexity can be reduced; the coding time required by prediction can be reduced; and furthermore, the video quality in the synthesis visual angle of the final decoding end can be ensured.

The invention relates to a light beam chaotic synchronization control method based on a self-feedback transverse coupling laser. The method comprises the steps of: injecting a laser array which carries out self-feedback through a plane mirror into a driving transverse coupling laser, and outputting an incident light beam; and injecting the incident light beam into a response transverse coupling laser, controlling an injection mode of injecting the incident light beam into the response transverse coupling laser, and obtaining an emergent light beam output from the response transverse coupling laser, so as to realize the completely chaotic synchronization of the incident light beam and the emergent light beam. By means of the method, the injection mode of injecting the incident light beam into the response transverse coupling laser is controlled, and high-quality complete chaotic synchronization control over all laser elements can be achieved for the driving transverse coupling laser under different self-feedback conditions.

The invention relates to a medium and low temperature curing bio-based epoxy asphalt composite material and application thereof. The material is composed of a component A and a component B. The component A comprises the following components by mass: 15-40 parts of bisphenol A epoxy resin, 9.8-25 parts of modified epoxy resin, 4.5-10 parts of an epoxy diluent, 0.1-1 part of a curing accelerator, and 40-50 parts of petroleum asphalt. And the component B is a curing agent. The mass part ratio of the component A to the component B is 100: (50-70). The epoxy asphalt composite material prepared by the invention has the advantages of high strength, high toughness, medium and low temperature curing, strong compatibility, low energy consumption, low pollution, low cost, environmental protection and the like, and can be widely applied to road pavement of pavements and bridge floors.

The invention discloses a bio-based primary amine cationic surfactant and a preparation method thereof, and belongs to the technical field of surfactant science and application. The synthesis of the surfactant comprises the following steps that oleic acid and methyl alcohol are used as raw materials for sequentially carrying out esterification, reduction and substitution, so that oleyl alcohol issybthesized; substitution is carried out on the oleyl alcohol and 3-hydroxybenzaldehyde, and substitution, reduction, acidification reaction are carried out, so that the final bio-based primary aminecationic surfactant is obtained. The bio-based primary amine cationic surfactant has wide raw material sources, is biologically renewable, is green and environmentally friendly, and has high biodegradability, the types of biological-based surfactants with renewable resources as raw materials are enriched, and the bio-based primary amine cationic surfactant can be widely applied to research of a surfactant self-organizing system.