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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5. Отображено 5.
09-06-2023 дата публикации

Amide extracting agent as well as preparation method and application thereof

Номер: CN116239490A
Принадлежит:

The invention discloses an amide extracting agent as well as a preparation method and application thereof. The bisamide extraction agents 2, 2 '-(cyclohexane-1, 2-dialkyl bis (oxy)) bis (N, N-bis (2-ethylhexyl) acetamide) (Octy-CDA) and 2, 2'-(cyclohexane-1, 2-dialkyl bis (oxy)) bis (N, N-dioctyl acetamide) (2-ethylhexyl-CDA) are obtained by adopting a two-step method, the preparation raw materials of the amide extraction agents are easy to obtain, the reaction is carried out at normal temperature and normal pressure, and the reaction process is clean and environment-friendly; the bisamide extraction agent has ether oxygen bonds and carbonyl oxygen bonds in the structure, more binding sites are provided for plutonium extraction, and the coordination ability is improved; moreover, the amide extraction agent disclosed by the invention is convenient to dispose wastes after plutonium extraction, so that environmental pollution is reduced.

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06-06-2023 дата публикации

Catalyst for catalytic decomposition of hydrazine nitrate and hydroxylamine nitrate in nitric acid system and application thereof

Номер: CN116212910A
Принадлежит:

The invention discloses a catalyst for catalytically decomposing hydrazine nitrate and hydroxylamine nitrate in a nitric acid system and application of the catalyst, feed liquid to be treated is heated and then contacted with the catalyst, and hydrazine nitrate and hydroxylamine nitrate are catalytically decomposed into nitrogen, water, trace nitrogen oxides, ammonium ions and the like; according to the catalyst, a carrier is a mesoporous activated carbon-carbide composite carrier, a main active component is ruthenium, an auxiliary agent is Al or B, and the mass fraction of the active component in the catalyst is 1-5%; the invention also discloses a preparation method of the catalyst. The prepared catalyst is high in hydrazine nitrate and hydroxylamine nitrate decomposition activity, high in nitric acid corrosion resistance and long in service life, and the waste liquid treatment method is efficient, safe, economical and environmentally friendly.

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18-11-2015 дата публикации

Electric current kills nemic device of tobacco root knot

Номер: CN0204762983U
Принадлежит:

The utility model relates to an electric current kills nemic device of tobacco root knot, including generator, rectifier, impulse generator, a plurality of spring clamp and a plurality of copper needle, the generator passes through the wire and connects the rectifier, and the rectifier is anodal, the rectifier negative pole passes through anodal, the negative pole of wire connection impulse generator respectively, and the positive negative pole of impulse generator passes through the wire and connects a plurality of spring clamps respectively, and every spring clamp all presss from both sides on the copper needle. The utility model discloses an advantage embodies: because root tie lines worm is a little less than to electric current, voltage patience, so the electric current can kill the root tie lines worm of tobacco root fast, and can not cause the pollution to soil, the utility model discloses a human cost can have been saved to the at least 20 -30 trunk tobacco in field while insecticidal ...

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18-07-2023 дата публикации

Blending method for flue-cured tobacco leaves to be yellow and freeze-dried

Номер: CN116439396A
Принадлежит:

The invention relates to the technical field of tobacco curing, in particular to a curing method for tobacco leaf curing yellowing and freeze drying. Comprising a tobacco leaf yellowing method and a tobacco leaf freeze-drying method. The tobacco leaf yellowing method comprises the steps of tobacco leaf harvesting, tobacco leaf weaving and tobacco leaf baking to be yellow. The tobacco leaf freeze-drying method comprises the steps of tobacco leaf pre-freezing, freeze-drying and freeze-drying later period. The invention aims to provide the curing method for curing the tobacco leaves to be yellow and freeze-drying, which is suitable for the tobacco leaves with certain maturity characteristics, is accurate in curing process, can ensure uniform color and stable quality of the cured tobacco leaves, can maintain the tobacco leaf tissues and tissue components to the greatest extent, and can reduce the curing loss rate.

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25-07-2023 дата публикации

Preparation method of noble metal catalyst, catalyst and application

Номер: CN116474767A
Принадлежит:

The invention relates to a preparation method of a noble metal catalyst, the catalyst and application, and belongs to the technical field of nuclear power waste governance, the method comprises the following steps: S1, dispersing activated carbon in a nitric acid solution for impregnation and adsorption to obtain first activated carbon, and then drying to obtain a first activated carbon carrier; s2, dispersing the first activated carbon carrier in a hydrochloric acid solution for impregnation and adsorption to obtain second activated carbon, and then drying to obtain a formed activated carbon carrier; s3, mixing the formed activated carbon carrier with a corresponding active component solution, dipping and adsorbing at room temperature, and performing rotary evaporation to remove a solvent to obtain a dry material; s4, roasting the dried material in a reducing environment, cooling and then collecting; and S5, fully washing and filtering the collected material in deionized water, and finally ...

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