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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 9. Отображено 9.
24-08-2011 дата публикации

Processing method of large-scale suspension bridge vice saddle

Номер: CN0101664876B
Автор: WANG ANSHUN, ZHAO PENGXIAN, ANSHUN WANG, PENGXIAN ZHAO
Принадлежит:

The invention discloses a processing method of a large-scale suspension bridge vice saddle. The vice saddle is constituted by combining and welding a saddle bow and a saddle body, wherein, the saddle body is constituted by combining and welding a base block and a rib plate; and the bottom surface of the base block is provided with a key slot. The processing steps are as follows: (1) respectively processing well the saddle bow and the base block on the numerical control machine tool rotation workbench, wherein, the key slot on the base block is not processed temporarily; (2) welding the rib plate on the base block to form the saddle body on the ground workbench; (3) combining and welding the saddle bow and the saddle body to a whole on the ground workbench; and (4) processing the key slot on the ground workbench. The method can satisfy processing requirements by utilizing conventional general equipment without adding large-scale equipment, thus having prominent economic effect.

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Номер записи: 1
14-09-2011 дата публикации

Method for determining hydrogen sulfide in gaseous phase of main stream smoke of cigarette

Номер: CN0102183478A
Автор: HONGLI LI, RONG HE, PENG WEN, LIJUN ZHU, PENGXIAN ZHAO, YINGXUE DAI, LI HONGLI, HE RONG, WEN PENG, ZHU LIJUN, ZHAO PENGXIAN, DAI YINGXUE
Принадлежит:

The invention discloses a method for determining hydrogen sulfide in a gaseous phase of a main stream smoke of a cigarette, which comprises the following steps that: a F319-04 filter leaf processed by acid solution captures a particle phase part in the main stream smoke of the cigarette; a gaseous phase part passing through the F319-04 filter leaf is absorbed by the solution containing zinc ions,and the hydrogen sulfide in the gaseous phase reacts with the zinc ions to generate a zinc sulfide colloid; in the acid condition, sulfide ions of the zinc sulfide colloid interact with para-amino dimethyl phenylamine solution and ferric trichloride solution to generate methylene blue, and quantity of the hydrogen sulfide is determined by spectrophotometry according to color depth. The method provided by the invention directly determines the hydrogen sulfide by the methylene blue method with simple instruments; and the determination is excellent in repeatability, high in sensitivity, accuratein ...

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Номер записи: 2
10-03-2010 дата публикации

Processing method of curved saddle groove of suspension bridge saddle

Номер: CN0101667028A
Автор: WANG ANSHUN, ZHAO PENGXIAN, ANSHUN WANG, PENGXIAN ZHAO
Принадлежит:

The invention discloses a processing method of curved saddle groove of suspension bridge saddle, which is processed by a four-axis linkage numerical control boring-milling machine. The compiling stepsof the numerical control processing procedure are as follows: 1) the vertical face of the workpiece is an XZ plane; the flat surface of the workpiece is an XY plane; the coordinate of the center of rotation of a work bench is (0,0); the rotation angle of the work bench is alpha at a time; the circular arc radius of the workpiece is R1; and the included angle of the plane is beta; 2) the X, Z coordinates are determined: supposing that the circular arc central coordinate of the workpiece vertical face is (P1, P2), then the rotation radius R of the circular arc center surrounding the center of the machine tool workbench satisfies the following formula: R=(P1<2>+P2<2>)<1/2>; the rotation initial angle alpha 0 satisfies the following formula: alpha 0=artSIN (P1/P2); after the workbench rotatesan ...

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Номер записи: 3
01-09-2010 дата публикации

Construction method for newly increasing arched open cut tunnel at railway operating line tunnel portal

Номер: CN0101818645A
Автор: BU JUN, GUOLI FENG, QIANG GUO, XIAOLIANG GUO, WEI HAO, WENGUANG HAO, YUHUA HUO, LEI JUN, GUANGWEI LI, BINGHUI LIU, RUILONG MEN, LIN WANG, XINGLIN WANG, XINXING YANG, XUFENG YUAN, PENGXIAN ZHAO, FENG GUOLI, GUO QIANG, GUO XIAOLIANG, HAO WEI, HAO WENGUANG, HUO YUHUA, LI GUANGWEI, LIU BINGHUI, MEN RUILONG, WANG LIN, WANG XINGLIN, YANG XINXING, YUAN XUFENG, ZHAO PENGXIAN
Принадлежит:

The invention relates to the field of tunnel construction, in particular to a construction method for newly increasing an arched open cut tunnel at a railway operating line tunnel portal. The construction method solves the problems that the conventional construction method for newly increasing the arched open cut tunnel at the railway operating line tunnel portal has complex process, difficult operation, low construction efficiency, large safety risk, poor construction quality and the like. The construction method comprises the following steps of: surveying setting-out, construction of manually digging hole piles, fiber concrete slab prefabrication, joist construction, processing and assembly of an H profile steel frame, short side wall construction, arch construction of the arched open cut tunnel, end-sealing concrete construction and the like. The fiber concrete slab and the profile steel frame form an integral structure, so the stability is good, and the safety is ensured; the method ...

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Номер записи: 4
17-08-2011 дата публикации

Determination method for indirectly measuring sulfureted hydrogen in mainstream smoke gas phase of cigarette by copper color method

Номер: CN0102156103A
Автор: HONGLI LI, RONG HE, PENG WEN, LIJUN ZHU, YINGXUE DAI, PENGXIAN ZHAO, LI HONGLI, HE RONG, WEN PENG, ZHU LIJUN, DAI YINGXUE, ZHAO PENGXIAN
Принадлежит:

The invention discloses a determination method for indirectly measuring sulfureted hydrogen in mainstream smoke gas phase of cigarette by a copper color method. The method comprises the steps of collecting the particle-phase part in the mainstream smoke gas of the cigarette by a Cambridge filter that is processed by an acidic solution; absorbing the gas phase part of the Cambridge filter by a copper ion absorbing liquid with fixed and excessive quantity; conducting reaction on the sulfureted hydrogen in the gas phase reacts and the copper ion so as to generate the copper sulphide deposition and separating the deposition subsequently; and indirectly measuring the quantity of the sulfureted hydrogen by determining the remaining copper ions in the supernatant fluid. In the invention, the sulfureted hydrogen can be indirectly determined by the copper ion color method; and the determination repeatability is good, the sensitivity is high, the determination result is exact, the recovery rateis ...

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Номер записи: 5
10-03-2010 дата публикации

Processing method of large-scale suspension bridge vice saddle

Номер: CN0101664876A
Автор: WANG ANSHUN, ZHAO PENGXIAN, ANSHUN WANG, PENGXIAN ZHAO
Принадлежит:

The invention discloses a processing method of a large-scale suspension bridge vice saddle. The vice saddle is constituted by combining and welding a saddle bow and a saddle body, wherein, the saddlebody is constituted by combining and welding a base block and a rib plate; and the bottom surface of the base block is provided with a key slot. The processing steps are as follows: (1) respectively processing well the saddle bow and the base block on the numerical control machine tool rotation workbench, wherein, the key slot on the base block is not processed temporarily; (2) welding the rib plate on the base block to form the saddle body on the ground workbench; (3) combining and welding the saddle bow and the saddle body to a whole on the ground workbench; and (4) processing the key slot on the ground workbench. The method can satisfy processing requirements by utilizing conventional general equipment without adding large-scale equipment, thus having prominent economic effect.

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Номер записи: 6
09-02-2011 дата публикации

Method for manufacturing suspension bridge tie rod

Номер: CN0101966644A
Автор: PENGXIAN ZHAO, BANGJUN MO, CHANGHUA LIU, MINGYOU RUAN, DELUN CHEN, SHUNQIONG ZENG, ZHAO PENGXIAN, MO BANGJUN, LIU CHANGHUA, RUAN MINGYOU, CHEN DELUN, ZENG SHUNQIONG
Принадлежит:

The invention provides a method for manufacturing a suspension bridge tie rod. The method comprises the following steps of: (1) arranging a blank on a machine tool and roughly cutting the tie rod by using a forming tool; (2) tempering and aligning; (3) roughly cutting tooth form of the tie rod by using the forming tool; and (4) finely extruding the tie rod tooth form to obtain the tie rod workpiece. The completely new method for manufacturing the suspension bridge tie rod of the invention has the advantages of high glossiness of the extrusion, high fineness of the tooth form and easiness of cutting of a material by threading, guarantees the quality and also improves the efficiency. The method is a preferred scheme for manufacturing the type of tie rods with diameter of more than phi 50 and long radius ratio of between 20 and 30; and the method grantees the quality, has high manufacturing capacity and high efficiency and is suitable for large-scale use and popularization.

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Номер записи: 7
12-01-2011 дата публикации

Casting method of pin-jointed cable clamp for lifting lug of suspension bridge

Номер: CN0101941052A
Автор: PENGXIAN ZHAO, BANGJUN MO, CHANGHUA LIU, MINGYOU RUAN, LI LI, ZERUI LI, ZHAO PENGXIAN, MO BANGJUN, LIU CHANGHUA, RUAN MINGYOU, LI ZERUI
Принадлежит:

The invention provides a casting method of a pin-jointed cable clamp for a lifting lug of a suspension bridge. The pin-jointed cable clamp for the lifting lug is divided into an upper part and a lower part which are respectively cast by the steps of manufacturing of a manufacturing model, molding, casting and after-treatment. A cable hole of the casting at the upper part is downward, pouring heads are arranged at two ends of the casting at the upper part and are connected with the casting at the upper part through a pouring channel, a riser is arranged on the upper surface of the casting at the upper part, and chilling blocks are arranged at the outer side of a convex plate of a bolt joint and on the surface of the cable hole. A cable hole of the casting at the lower part is upward, pouring heads are arranged at two ends of the casting at the lower part and are connected with the casting at the lower part through a pouring channel, a riser is arranged on the surface of the cable hole, and ...

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Номер записи: 8
19-11-2008 дата публикации

Cigar flavour quality control method

Номер: CN0101308120A
Автор: LI HONGLI, ZHU LIJUN, ZHAO PENGXIAN, TAN GUANGLU, DAI YINGXUE, HONGLI LI, LIJUN ZHU, PENGXIAN ZHAO, GUANGLU TAN, YINGXUE DAI
Принадлежит:

The invention relates to a tobacco flavoring essence quality control method, in particular to a method reaching the quality control to tobacco flavoring essence by an ultraviolet fingerprint spectra method, which belongs to the technique field of tobacco flavoring essence quality control. The method comprises steps of: preparation of a test specimen; acquirement of ultraviolet fingerprint spectra; calculation of similarity degree of ultraviolet fingerprint spectra; determination of threshold value of ultraviolet fingerprint spectra similarity degree; and quality evaluation of tobacco flavoring essence sample under test. The method has advantages of sensitivity and reliability, good repeatability, convenience and rapidness, and is applied to quality control to tobacco flavoring essence.

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Номер записи: 9