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385results about How to "Friendly" patented technology

Single-image sensor based double-eye iris recognition equipment

The invention relates to medium-long distance single-image sensor based double-eye iris recognition equipment which comprises a panel, an optical lens, a camera module, a processor plate, a storage media, a power interface and a network interface. The process plate is connected with the camera module, the storage media, the power interface and the network interface, and the optical lens, the camera module, the processor plate and the storage media are embedded in the space limited by the front part and the rear part of the panel. The medium-long distance single-image sensor double-eye iris recognition equipment is characterized in that: the front part of the panel is provided with an automatic positioning optical filter, the optical lens is arranged on one side of the optical filter, which is far from the user, the shooting distance of the optical lens is more than 30cm, and the optical lens is provided with a pitch adjusting mechanism so as to adapt to the user in different height and carry out the non-contact double-eye iris recognition. The embedded double-eye iris recognition equipment has a farther recognition range and a wider activity range, can adopt the human-machine interaction modes of the tri-color light and the voice at the same time and is intelligent and friendly.
Owner:EYESMART TECH

Single-component self-crosslink emulsion adhesive for dry type composite film and preparation method thereof

The invention discloses single component self-cross linking emulsion tackiness agent used for dry type compound and the preparation method thereof. The invention has the preparation method as follows: firstly, part of aqueous medium, part of emulsifying agent, and part of initiating agent and baking soda are measured and added in a reactor, and are warmed up 70 to 85 DEG C; secondly, then hard monomer, soft monomer, (methyl) acrylic acid and cross linking monomer are mixed, and form pre-emulsion together with part of the emulsifying agent and water; thirdly, 1 / 10 pre-emulsion is added firstly to form assistant emulsion by reacting, and then the pre-emulsion and initiating agent aqueous solution are added synchronistically to perform reaction, the time lasts for 3 to 5 hours. The water emulsion tackiness agent obtained has good stability, and is free from poison and dissolving agent, and is favor of good health of a worker and environmental protection. A compound produced product obtained by utilizing the emulsion tackiness agent of the invention has the advantages that the ageing resistance is excellent, the viscous force is high, and the foaming is not existent during the impressing and sagging process, and the invention has wide application market.
Owner:吴达文

Super capacitor device containing millet-husk-based porous active carbon material

InactiveCN106276888ALow ashLow wettability of the surfaceHybrid capacitor electrodesMicrowave methodFiltration
The invention discloses a super capacitor device containing a millet-husk-based porous active carbon material. The millet-husk-based porous active carbon material is prepared by uniformly mixing dried millet husks and an activator, performing carbonization and activation with a microwave device in the protection of an inert gas, adding distilled water to obtained black powder for suction filtration washing till the pH value is 6.4-7, and performing drying to obtain black powder. The black powder is the prepared millet-husk-based porous active carbon material. The millet-husk-based porous active carbon material (an active substance) prepared through the microwave method is mixed with a binder according to a certain mass ratio, distilled water is added for mixing to prepare a thick liquid, and the thick liquid is repeatedly rolled to obtain a sheet electrode material. The electrode material is put on a current collector with the corresponding size, cold pressing is carried out at 1-40 Mpa for 10-200 s, and drying is performed at 120 DEG C to obtain an electrode plate of the super capacitor device. The electrode material in the electrode plate is more than 14 mg per square centimeter. An electrode plate, a membrane, and an electrode plate are assembled into a sandwich structure, then different electrolytes are dropwise added, so that the super capacitor device is assembled.
Owner:YANGZHOU UNIV

Method and device for treating daub and iron-rich heavy metal solid waste of waste lead-acid storage battery

InactiveCN102965509AEliminate gas pollutionClean and efficient recyclingProcess efficiency improvementSolventHeavy metals
The invention discloses a reduction sulphur-fixing method and device for treating daub and iron-rich heavy metal solid waste of a waste lead-acid storage battery. The method comprises the steps of: with iron-rich heavy metal solid waste as a sulphur-fixing agent and smokeless conny as a reducing agent, firstly, fully uniformly mixing raw materials such as daub of the waste lead-acid storage battery with the sulphur-fixing agent and a solvent, drying and pelleting, then continuously adding the mixture and the reducing agent (fuel) into an oxygen side-blowing bath smelting furnace for reduction sulphur-fixing smelting, further producing lead bullion, iron sulphur and sulphur-containing slag in one step under the condition that no sulfur dioxide is generated. According to the method, sulphur in the raw materials is fixed in the sulphur-containing slag and iron sulphur, so that low-concentration sulfur dioxide pollution is thoroughly eliminated, valuable elements such as iron, gold, silver, tin, antimony and bismuth in the sulphur-fixing agent are recycled with high efficiency at low cost, and continuous cleaning smelting of the daub of the waste lead-acid storage battery and continuous harmless treatment of the iron-rich heavy metal solid waste are realized. The reduction sulphur-fixing method has the advantages of changing harmful substances into beneficial substances, recycling waste materials, and being simple in process, environmentally friendly, and low in cost, and has important significance for continuous clean smelting of the daub of the waste lead-acid storage battery and the treatment and recycling of the heavy metal solid waste.
Owner:CENT SOUTH UNIV +1

Process for Bayer process aluminum oxide production by replacing carbide slag with lime

The invention discloses a process for Bayer process aluminum oxide production by replacing carbide slag with lime, belonging to the technical field of solid waste treatment. Waste-carbide slag of a chemical plant is prepared into carbide slag emulsion with a certain effective calcium content through mixing and stirring with settled washing liquor or hot water, the prepared carbide slag emulsion is pumped to enter grinding, fine filtration and relative processes of raw materials in the Bayer process aluminum oxide production for fully playing a role of effective calcium. The carbide slag is replaced with the lime without influencing the aluminum oxide normal production or damaging the properties of sodium aluminate, the carbide slag can be used as a substitute of the lime to eliminate the influence of titanium dioxide in the ore on the dissolving-out; the addition of the carbide slag applied to the fine filtration procedure is basically equal to the addition of the lime, the indexes accord with the production requirement without influencing the filtering capacity of a leaf filter, thereby greatly reducing the raw material consumption during the Bayer process aluminum oxide production, and solving the problem of difficult carbide slag storage. The process accords with the circular economy standard advocated by our country, embodies the development of circular economy, and realizes the waste reclamation and the environment protection.
Owner:CHIPING XINFA HUAYU ALUMINA

Method for preparing sodium carboxymethylcellulose by abandoned cotton fabrics

The invention discloses a method for preparing sodium carboxymethylcellulose by abandoned cotton fabrics, which includes cleaning, drying and cutting up the abandoned cotton fabrics, placing the abandoned cotton fabrics into a pretreating agent solution for heating and stirring, and filtering out after the abandoned cotton fabrics faded; placing and heating the abandoned cotton fabrics in a sodium hydroxide solution for 45-90 minutes at the temperature from 75 DEG C to 100DEG C until colors of the abandoned cotton fabrics are completely faded, and obtaining celluloses; submerging the celluloses into the sodium hydroxide solution, heating the celluloses for 1.5-2 hours at the temperature from 30 DEG C to 50 DEG C, and then removing the sodium hydroxide solution to obtain alkali celluloses; shredding the alkali celluloses and adding absolute ethyl alcohol and the sodium hydroxide solution; dropwise adding a chloroacetic acid ethanol solution at the temperature from 50 DEG C to 60 DEG C; heating for 80-100 minutes at the temperature from 70 DEG C to 80 DEG C; performing a suction filtration and washing; and adding a phenolphthalein indicator, dropwise adding hydrochloric acid for a neutralization until the solution is colorless, washing 1-2 times, and drying after a suction filtration to obtain a finished product.
Owner:CHANGAN UNIV
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