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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 10. Отображено 10.
13-08-2008 дата публикации

Caking and flaking detection method and detection device in polypropylene production

Номер: CN0101241149A
Принадлежит:

A method for detecting agglomeration and flaking in process of polypropylene is provided. Propylene is reacted in reactor to form polypropylene by polymerization, and the powder out of reactor is sent to gas expansion bag filter and fell to degassing chamber by rotating valve on the bottom of the bag filter, the electric signal on the outlet of collecting gas expansion bag filter detect agglomeration and flaking by electric signal on the outlet of rotating valve of receiving and analyzing gas expansion bag filter. The present invention is also used for detecting agglomeration and flaking of polyethylene and polypropylene polyethylene multiple copolymerization process. The present invention can detect agglomeration and flaking exactly and rapidly without changing the techniques and equipment in existence, has merits of simple structure of detecting and convenient operation, is a green, safety and environment-friendly detecting method.

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14-09-2011 дата публикации

Method for rapid detection of melamine in dairy products

Номер: CN0102183515A
Принадлежит:

A method for rapid detection of melamine in dairy products comprises the following steps: 1) adding 5 drops of a dairy product sample and pure milk known to be free of melamine into two test tubes, adding 4 drops of a 1% picric acid solution into each test tube, mixing well; 2) adjusting the pH value of the solution to 7-8 by a 10% sodium hydroxide solution or a 2 mol/L acetic acid solution; 3) adding 1 drop of an indicator solution into each test tube, wherein a consistent color represents that the dairy product sample does not contain melamine, and an inconsistent color represents that the dairy product sample contains melamine. The detection process of the melamine qualitative detection method of the invention requires only 1-2 min; the method has the advantages of fast detection speed, low price, low detection limit, and high sensitivity; and the method has simple equipment and convenient operation, and can be easily extended and applied to farmers and food enterprises.

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20-01-2010 дата публикации

Caking and flaking detection method and detection device in polypropylene production

Номер: CN0100582790C
Принадлежит:

A method for detecting agglomeration and flaking in process of polypropylene is provided. Propylene is reacted in reactor to form polypropylene by polymerization, and the powder out of reactor is sent to gas expansion bag filter and fell to degassing chamber by rotating valve on the bottom of the bag filter, the electric signal on the outlet of collecting gas expansion bag filter detect agglomeration and flaking by electric signal on the outlet of rotating valve of receiving and analyzing gas expansion bag filter. The present invention is also used for detecting agglomeration and flaking of polyethylene and polypropylene polyethylene multiple copolymerization process. The present invention can detect agglomeration and flaking exactly and rapidly without changing the techniques and equipment in existence, has merits of simple structure of detecting and convenient operation, is a green, safety and environment-friendly detecting method.

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04-02-2009 дата публикации

Method for extracting metal aluminum from waste aluminum plastic film

Номер: CN0101358290A
Принадлежит:

The invention discloses a method for extracting metallic aluminum from waste aluminum-plastic films, which is characterized in that cleaned and dried waste aluminum-plastic films are cut to pieces and then put into a heating container, and colophony serving as the reduction agent is covered on the aluminum-plastic films; the heating container is heated for one hour under the set temperature and then the heating stops, and the metallic aluminum is obtained after the mixture in the container is cooled to the room temperature. The invention extracts metallic aluminum from the waste aluminum-plastic films through a heating method, and has great significance in resource saving, energy consumption, environmental pollution and the like compared with the production of the primary aluminum, 95 percent of energy is saved when one ton of the secondary metallic aluminum which is obtained by the heating method is produced, at the same time, 10.05 tons of water is saved, and 11 tons of solid material ...

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26-03-2014 дата публикации

Preparation method of propene polymer composition

Номер: CN103665221A
Принадлежит:

The invention relates to a preparation method of a propene polymer composition. The method is characterized in that in the presence of catalyst components and hydrogen, firstly the propene homopolymer is produced in three or more than three reactors, then the propene polymer is produced in a final reactor, the multiple reactors comprise liquid reactors and gas reactors, the reaction temperature of the liquid reactor is 60-85 DEG C, the pressure of the liquid reactor is 2-5 MPa, the reaction temperature of the gas reactor is 70-90 DEG C, the pressure of the gas reactor is 1-3 MPa, the number-average molecular weight of the polymer is not less than the average molecular weight of the homopolymer, the ratio of the melt index of the final polymer and the melt index of the homopolymer is 0.3 to 1.0, and the catalyst component adopts the catalyst disclosed in the patent CN1453298A. The propene polymer composition is fewer in xylene soluble matters, the melt temperature is low, the molecular weight ...

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30-06-2023 дата публикации

Control method and device for radiant tube burner of vertical annealing furnace and electronic equipment

Номер: CN116356135A
Принадлежит:

The invention relates to the technical field of steel rolling, and discloses a control method and device for a radiant tube burner of a vertical annealing furnace and electronic equipment. The method comprises the steps that a flue gas temperature setting model is built based on the strip steel thickness, the strip steel width and the strip steel running speed; constructing a flue gas temperature correction model based on the thermal load output of the heating section burner of the annealing furnace and the fault number of the burner; based on the flue gas temperature setting model and the flue gas temperature correction model, constructing an annealing furnace heating section flue gas early warning model; based on the flue gas early warning model of the heating section of the annealing furnace, the combustion state of the heating section burner of the annealing furnace is determined, the heating section burner of the annealing furnace is controlled to be closed based on the combustion ...

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11-11-2009 дата публикации

New method for determining content of halide ions

Номер: CN0101576549A
Принадлежит:

The invention discloses a new method for determining content of halide ions, which pertains to the analytical chemistry field. The method uses cationic brilliant blue 2RL as an adsorption indicator for titrating the ions of Br and I, which has the advantages that the end point of titration is easy to observe and the error meets the requirement. The detailed technical proposal of the invention comprises the processes of taking water and glacial acetic acid, mixing the water and glacial acetic acid according to a mixing proportion of 1 to 1, dissolving the brilliant blue 2RL in the mixed solution so as to prepare a 1% solution as an indicator, adding a AgNO3 standard solution and five drops of the brilliant blue 2RL indicator into a conical flask and dripping a KI solution until the color of the solution turns from dark blue to be colorless and transparent.

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12-08-2009 дата публикации

Method for preparing iron oxide red pigment from laterite

Номер: CN0101503578A
Принадлежит:

The invention discloses a method for preparing a ferric oxide red pigment from red earth. The invention adopts the following specific technical proposal: passing the crushed and porphyrized red earth through a 200-mesh screen, adding the red earth into a big iron kettle, and fully agitating the red earth for 50 to 60 minutes at a heating temperature of between 680 and 720 DEG C till the pigment becomes reddish brown. The local red earth resource is used for preparing the red pigment. Compared with the prior art, the method has sufficiency raw material resources, changes wastes into valuables, does not need other chemical agents in the preparation process, and facilitates the environmental protection. The method opens up a new way for effective utilization of the local resource, has great social significance and economic benefits, and is worth of generalization and application.

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11-07-2023 дата публикации

Polypropylene particle hydraulic conveying system and method

Номер: CN116409635A
Принадлежит:

The invention relates to a polypropylene particle material post-processing system, in particular to a polypropylene particle hydraulic conveying system which comprises a hydraulic conveying material rotating device and a particle centrifugal drying machine communicated with the hydraulic conveying material rotating device, and further comprises a circulating water tank communicated with the particle centrifugal drying machine. The ultra-high molecular weight polyethylene filter is communicated with the hydraulic conveying material transfer device; the circulating water tank conveys conveying water of the circulating water tank into the ultra-high molecular weight polyethylene filter through a circulating water pump; purified water output by the ultra-high molecular weight polyethylene filter enters the hydraulic conveying material transfer device to be used as back flushing water, output dust-containing conveying water enters the hydraulic conveying material transfer device through a conveying ...

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03-06-2015 дата публикации

Full-automatic energy-saving crystal ornament thermal forming machine

Номер: CN104671641A
Автор: JIA ZHONGMING, JIN JIE
Принадлежит:

The invention discloses a full-automatic energy-saving crystal ornament thermal forming machine, comprising a raw material supply device arranged in a linear direction, a punch forming device and a heating furnace, wherein a finished product stripping device is additionally arranged between the raw material supply device and the punch forming device, and a finished product discharging device is additionally arranged between the punch forming device and the heating furnace. The whole machine consists of five parts which are arranged in a straight line and reasonable in layout, and the position near cooperation compactness among the main components of the whole machine is high, so that full-automatic autonomous operation can be realized extremely conveniently, the whole working process can be easily controlled by using intellectualization, the production efficiency and the finished product rate are greatly increased, the labor cost is greatly reduced, and compared with the existing most advanced ...

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