Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 8. Отображено 8.
09-04-2021 дата публикации

Fault indication device and system

Номер: CN212932740U

The utility model provides a fault indication device and system. The device comprises a photoresistor circuit, a controller and a hard node output circuit. The output end of the photoresistor circuit is connected with the input end of the controller and is used for converting the state information of the alarm indicating lamp into a level signal; the controller is used for outputting a corresponding control signal according to the level signal output by the photoresistor circuit; the input end of the hard node output circuit is connected with the output end of the controller, and the output end of the hard node output circuit is connected with a public measurement and control screen when used and used for outputting a corresponding switching value signal according to a control signal output by the controller. Enabling the common measurement and control screen to detect state information of the alarm indication lamp according to the switching value signal; the problem that an electric energy ...

Подробнее
07-07-2023 дата публикации

Piperidine dehydrogenation catalyst and preparation method thereof

Номер: CN116393159A
Принадлежит:

The present invention discloses a piperidine dehydrogenation catalyst and a preparation method thereof, and relates to the technical field of catalysts, the piperidine dehydrogenation catalyst comprises an active component and a carrier composition, the active component comprises a noble metal active component and a transition metal active component, and the active component accounts for 0.1-1% of the weight of the carrier composition in terms of elementary substance; the carrier composition comprises a molecular sieve and a modified metal oxide, the content of the molecular sieve in the carrier composition is 95%, and the content of the modified metal oxide in the carrier composition is 5%. According to the dehydrogenation catalyst disclosed by the invention, the active component and the carrier composition are matched, so that the reaction temperature can be reduced in actual use, the coking is reduced, the product yield is further improved, and the service life of the catalyst is prolonged ...

Подробнее
18-07-2023 дата публикации

Preparation process of 2, 2 '-dipyridyl

Номер: CN116444423A
Принадлежит:

The invention discloses a preparation process of 2, 2 '-dipyridyl, and relates to the technical field of dipyridine.The method comprises the steps that pyridine serves as a raw material, a fixed bed serves as a reactor, under the action of a loaded nickel catalyst, coupling reaction is conducted to generate 2, 2'-dipyridyl, the nickel content in the loaded nickel catalyst is 62-65%, and a carrier of the loaded nickel catalyst is modified silicon oxide; the specific preparation process comprises the following steps: S01, loading a nickel-loaded catalyst into a fixed bed reactor, activating for 2-3 hours, and heating to a reaction temperature; s02, pyridine and an additive are mixed according to a certain proportion, then the mixed solution is injected into the fixed bed reactor, and 2, 2 '-dipyridine.The activity of the loaded nickel catalyst is higher, and through the catalytic reaction of the loaded nickel catalyst, the prepared 2, 2'-dipyridineis high in conversion rate and long in service ...

Подробнее
23-06-2023 дата публикации

Preparation process of L-glufosinate-ammonium

Номер: CN116287043A
Принадлежит:

The invention discloses a preparation process of L-glufosinate-ammonium, and relates to the technical field of glufosinate-ammonium, D, L-glufosinate-ammonium is used as a raw material, L-glufosinate-ammonium is obtained through catalysis of a catalyst, and the specific preparation process comprises the following steps: S01, deracemization: DL-glufosinate-ammonium is added into a 1mol/L ammonium formate solution, stirring and mixing are performed to obtain a mixed solution, adding a catalyst L-arabinose isomerase mutant into the mixed solution for reaction, and obtaining a reaction solution after the reaction is completed; s02, separating and concentrating; and S03, refining. The L-arabinose isomerase mutant is added as a biocatalyst, the catalytic activity and the conversion rate are higher, the asymmetric synthesis method is adopted, and the prepared L-glufosinate-ammonium is refined and purified, so that the process route complexity and the wastewater amount are reduced, the yield of ...

Подробнее
23-03-2005 дата публикации

Biological Function of new DRAB type zinc finger protein 2HP 333

Номер: CN0001597696A
Принадлежит:

A human KRAB-type zinc finger protein gene ZNF333 (No.AF 372702 in GenBank) with specific expression has a cDNA fragment containing 665 amino acid, which has been obtained. The different detections and experiments show that not only said ZNF333 protein is a nuclear fact, but also it has trascription suppressing activity, so it plays the important role in the growth, differentiation and development of cells.

Подробнее
08-10-2014 дата публикации

Automatic equipment and control system and control device of automatic equipment

Номер: CN104090523A
Автор: LIN JIE, CHEN JIZHEN
Принадлежит:

The invention discloses automatic equipment and a control system and a control device of the automatic equipment. The automatic equipment comprises a main control circuit board and a core board, the main control circuit board comprises a bottom board and an auxiliary mainframe chip arranged on the bottom board, the core board is detachably connected with the bottom board through a universal serial bus (USB) and is connected with the auxiliary mainframe chip through the bottom board, and the core board is not arranged on the bottom board. By means of the preceding mode, the occurrence probability of the problem that when a part of control elements in the automatic equipment are damaged and updated, other elements also need to be replaced can be reduced, and a part of the control elements can be conveniently replaced after being damaged and updated.

Подробнее
25-07-2023 дата публикации

Preparation process of aquacide dichloride

Номер: CN116478159A
Принадлежит:

The invention discloses a preparation process of diquat dichloride, and relates to the technical field of diquat, and the specific preparation process of the diquat dichloride comprises the following steps: S01, mixing diquat dibromide and hydrochloric acid, adding a catalyst, mixing, dropwise adding into a mixed solution of an organic solvent, a bromine absorbent and an oxidizing agent, keeping the temperature at 50 DEG C, reacting for 1-2 hours, filtering, washing, and drying to obtain the diquat dichloride. Controlling the dropping speed, and heating to 60-70 DEG C for reaction; s02, after the reaction is finished, liquid separation is performed to obtain a water phase and a reaction oil phase, residual bromide in the water phase is extracted with an organic solvent, an extraction water phase and an extraction oil phase are obtained, ammonium bicarbonate is added into the extraction water phase, the pH of the extraction water phase is adjusted to 5-6, and after concentration, diquat ...

Подробнее
04-05-2011 дата публикации

Computer controller for collar machine

Номер: CN0102041618A
Принадлежит:

The invention relates to electronic control equipment for knitting, especially relates to a computer controller for a collar machine, which is characterized by comprising a power supply, a mainboard, a head drive board, a button display panel, a roller plate, a frequency converter, a bed moving stepping driver, and a sensor; the mainboard, the head drive board, the button display panel, the roller plate, and the bed moving stepping driver are respectively connected with the power supply; the head drive board, the button display panel, the roller plate, the frequency converter, the bed moving stepping driver and the sensor are respectively connected with the mainboard. The computer controller for a collar machine provided by the invention is advantageous in lower cost, higher efficiency and higher dgree of automation.

Подробнее