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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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Форма поиска

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.
04-07-2012 дата публикации

Preparation method for alkyl glucoside

Номер: CN0101781342B
Автор: CHEN XUAN, GONG YETING, ZHANG JIANBO, ZHOU JIAFEN, XUAN CHEN, YETING GONG, JIANBO ZHANG, JIAFEN ZHOU
Принадлежит:

The invention discloses a preparation method for alkyl glucoside; the preparation method is characterized by taking monosaccharide and long-chain alkyl alcohol as raw materials, synthesizing and reacting under the catalysis of H2SO4/SiO2 solid acid, and then dehydrating and condensing to prepare the alkyl glucoside. The preparation method has the advantages of simple technology, convenient operation, high yield, cheap and easy available raw material for synthesis, low production cost and pollution free to environment; and the product has good surface activity, no objectional odor and stable performance; and the preparation method is a new synthesis method for the alkyl glucoside with the vast application prospects.

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Номер записи: 1
30-09-2015 дата публикации

Splicing device

Номер: CN104942160A
Автор: ZENG YAOZONG, LAN JINGZHONG, ZHOU JIAFEN
Принадлежит:

The invention relates to a splicing device. The splicing device comprises a base, a mounting seat, an air cylinder control box, a second control platform, a plurality of supports and a first control platform, wherein the mounting seat is arranged on the base, the plurality of supports are arranged on the mounting seat respectively, the air cylinder control box is arranged on one side surface of the base, the first control platform is arranged on one side surface of the base, output ends of the second control platform and the first control platform are connected with an input end of the air cylinder control box respectively. The device can provide sufficient and stable stamping force during splicing of different modules, can sufficiently guarantee the splicing quality of molds, effectively avoids module falling-off caused by insecure splicing, realizes rapid splicing of the molds and improves production and manufacturing efficiency.

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Номер записи: 2
14-07-2010 дата публикации

Preparation method for nonyl glucoside

Номер: CN0101775046A
Автор: CHEN XUAN, LI JUAN, ZHANG JIANBO, ZHOU JIAFEN, XUAN CHEN, JUAN LI, JIANBO ZHANG, JIAFEN ZHOU
Принадлежит:

The invention discloses a preparation method for nonyl glucoside, which is characterized in that acetylated mannose or xylose and nonyl alcohol are mixed with solvent and then compounded into acetylated nonyl glucoside under the action of the glycosylation catalyst, and finally the acetylated nonyl glucoside undergoes the deacylation reaction to prepare the nonyl glucoside. The preparation method has simple technology, convenient operation, high yield, cheap and available materials used for compounding, low manufacturing cost and pollution free to environment; and the product has good surface activity, no objectional odor and stable performance and is a surface active agent with application prospect.

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Номер записи: 3
16-06-2010 дата публикации

Method for complete acetylization of saccharides in presence of solid acid catalyst

Номер: CN0101735288A
Автор: LI JUAN, ZHANG BO, ZHANG JIANBO, ZHOU JIAFEN, JUAN LI, BO ZHANG, JIANBO ZHANG, JIAFEN ZHOU
Принадлежит:

The invention discloses a method for the complete acetylization of saccharides in the presence of a solid acid catalyst, which is characterized in that: monosaccharide and acetic anhydride are mixed to undergo a synthetic reaction in the presence of a catalyst of H2SO4/SiO2 solid acid and the reactant is filtered, distilled and concentrated to form a pure acetyl compound. Compared with the prior art, the method has the advantages of short reaction time, convenient post treatment, high yield, recyclable solid acid and the like, and is environmentally friendly, economical and highly efficient, low in synthetic raw material price, low in production cost and capable of being widely applied to industrial production. Thus, the method is a new method for the complete acetylization of the saccharides, which has a promising application prospect.

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Номер записи: 4
18-05-2011 дата публикации

Method for preparing 4, 6-dibenzyl-2, 3-unsaturated glucoside

Номер: CN0102060886A
Автор: JIANBO ZHANG, BO ZHANG, JUAN LI, JIAFEN ZHOU, ZHANG JIANBO, ZHANG BO, LI JUAN, ZHOU JIAFEN
Принадлежит:

The invention discloses a method for preparing 4, 6-dibenzyl-2, 3-unsaturated glucoside, which is characterized by comprising the following steps of: mixing 3, 4, 6-tri-O-benzyl glucal and dichloromethane, acetonitrile, tetrahydrofuran, N, N-dimethylformamide, acetone or diethyl ether in a molar volume ratio of 1 mol: (5-50) L, adding a sulfuric acid/silica catalyst and an oxygen- or sulfur-containing nucleophilic receptor under stirring, undergoing a rearrangement reaction of 3, 4, 6-tri-O-benzyl glucal at a temperature of 0-50 DEG C, filtering out the catalyst after the reaction ends, and concentrating the filter liquor to obtain the 4, 6-dibenzyl-2, 3-unsaturated glucoside. The method for preparing the 4, 6-dibenzyl-2, 3-unsaturated glucoside has the advantages of simple process, convenience in operating, high yield, low production cost and no environmental pollution; the reagent used for synthesis is cheap and easy to get; the dissolvent is cheap and easy to get and has little toxicity ...

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Номер записи: 5
21-07-2010 дата публикации

Preparation method for alkyl glucoside

Номер: CN0101781342A
Автор: CHEN XUAN, GONG YETING, ZHANG JIANBO, ZHOU JIAFEN, XUAN CHEN, YETING GONG, JIANBO ZHANG, JIAFEN ZHOU
Принадлежит:

The invention discloses a preparation method for alkyl glucoside; the preparation method is characterized by taking monosaccharide and long-chain alkyl alcohol as raw materials, synthesizing and reacting under the catalysis of H2SO4/SiO2 solid acid, and then dehydrating and condensing to prepare the alkyl glucoside. The preparation method has the advantages of simple technology, convenient operation, high yield, cheap and easy available raw material for synthesis, low production cost and pollution free to environment; and the product has good surface activity, no objectional odor and stable performance; and the preparation method is a new synthesis method for the alkyl glucoside with the vast application prospects.

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Номер записи: 6
30-09-2015 дата публикации

Stamping die for concave aluminum piece as automobile spare part

Номер: CN104942115A
Автор: LAN JINGZHONG, ZHOU JIAFEN, HUANG LIN
Принадлежит:

The invention is applicable to the field of molds, and provides a stamping die for a concave aluminum piece as an automobile spare part. The stamping die comprises a bottom plate, wherein a top plate is arranged above the bottom plate, a press plate is arranged on the top plate, the top plate is connected with the bottom plate through a side plate, a press block is arranged on the press plate, a heavy object is stored in the press block, a discharging groove is formed in the middle of the top plate, a stamping column is arranged below the press plate, a stamping head is arranged at the lower end of the stamping column, the stamping column is inserted and connected in the discharging groove, an upper transmission wheel and a lower transmission wheel are arranged on the bottom plate and connected through a transmission belt, the upper transmission wheel is higher than the lower transmission wheel, the transmission belt is inclined and arranged below the discharging groove, a driving motor ...

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Номер записи: 7
30-09-2015 дата публикации

Splicing device for girder assembly

Номер: CN104942155A
Автор: TAN JINFU, LAN JINGZHONG, ZHOU JIAFEN, HUANG LIN
Принадлежит:

The invention relates to a splicing device for a girder assembly. The girder assembly comprises a base, a mounting base, a cylinder control box, a first fixing cylinder, a second fixing cylinder, a second control console, a plurality of brackets and a first control console, wherein the mounting base is arranged on the base; the plurality of brackets are arranged on the mounting base respectively; the cylinder control box is arranged on one side surface of the base, the first control console is arranged on one side surface of the base, the first fixing cylinder and the second fixing cylinder are arranged two corresponding sides of the base respectively, the first fixing cylinder is adjacent to the cylinder control box, the control ends of the first fixing cylinder and the second fixing cylinder are connected with the output end of the cylinder control box respectively, and the output ends of the second control console and the first control console are connected with the input end of the ...

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Номер записи: 8
23-09-2015 дата публикации

Water-cooling bending mould for automobile accessory machining

Номер: CN104923673A
Автор: HUANG LIN, ZHOU JIAFEN
Принадлежит:

The invention is suitable for the field of automobile accessory machining, and provides a water-cooling bending mould for automobile accessory machining. The water-cooling bending mould for automobile accessory machining comprises a male mould machining part and a female mould machining part which is arranged at the upper end of the male mould machining part and matched with the male mould machining part, the female mould machining part is communicated with a pressure machine through a pressure transmission shaft, and the control end of the pressure machine is connected with a controller. The water-cooling bending mould for automobile accessory machining has the advantages of being simple in structure, strong in practicability, flexible and controllable in pressing, good in springback preventing effect and good in cooling and shaping effect.

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Номер записи: 9
23-09-2015 дата публикации

Automobile part aluminum ring stamping die

Номер: CN104923610A
Автор: LIAO YOUPING, LAN JINGZHONG, ZHOU JIAFEN, HUANG LIN
Принадлежит:

The invention is applicable to the field of automobile part machining and provides an automobile part aluminum ring stamping die. The stamping die comprises a lower die body and an upper die body arranged above the lower die body. A second supporting block is inserted in the part between the other end of the upper die body and the other end of the lower die body. A pressing column is arranged in the middle of the upper die body. A groove is formed in the axis center of the pressing column. A forming column is arranged in the middle of the lower die body. A forming groove is formed in the axis center of the forming column. The forming column is in butting connection with the pressing column. The upper die body is provided with a support. The top end of the support is provided with a driving motor. A motor shaft of the driving motor is connected with a pressing block. The control end of the driving motor is connected with the output end of an intelligent controller. According to the automobile ...

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Номер записи: 10