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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.
11-12-2013 дата публикации

Marine engine nodular cast iron crankshaft

Номер: CN103438088A
Автор: Li Yongqiang, Yu Sun, Liao Jiguang, Yu Xingjian, Wei Wenxue, Tao Qianzhao
Принадлежит:

The present invention discloses a marine engine nodular cast iron crankshaft, which comprises: a main journal arranged on a cylinder, a connection rod neck connected with a connection rod big end hole, and a balance block, wherein rolling fillets are respectively undercut on positions of journal transition fillets formed by the main journal and the connection rod neck with the balance block. The marine engine nodular cast iron crankshaft has the following characteristics that: the structure is simple and reasonable; fillet rolling is adopted to strengthen the crankshaft so as to improve a fatigue strength; and the fillet does not require fine grinding processing after rolling strengthening, and it can be ensured that beating deformation is qualified, such that processing property of the marine engine nodular cast iron crankshaft is better than processing property of the nitrogenization crankshaft, and cost is low.

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Номер записи: 1
03-07-2013 дата публикации

Method for preparing olefin polymer

Номер: CN103183752A
Автор: Wu Wenqing, Han Guodong, Yang Yongrong, Luo Guanghai, Du Huanjun, Wang Xiaofei, Sun Hongxia, An Baoyu, Qi Lianfang, Wei Wenxue
Принадлежит:

The invention provides a method for preparing olefin polymer by a fluidized bed reactor; the temperature in the fluidized bed reactor is controlled to provide at least one low temperature area in the reactor; the polymerization temperature approaches or is equal to a dew point temperature of fluidizing gas in the reactor, particularly the temperature difference between the two is +/- 5 DEG C. According to the method of the invention, the fluidized bed reactor is operated; the polymer generated by copolymerization of ethene and alpha-olefin has a same melt index and density, and physical properties of the olefin polymer is characterized, such as tensile strength including yield strength and breaking tenacity, and falling dart impact, which are improved greatly.

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Номер записи: 2
25-07-2012 дата публикации

Method and device for collecting and measuring leakage water of large-scale rice field undisturbed soil column

Номер: CN102607892A
Автор: Chen Anlei, Xie Xiaoli, Wei Wenxue, Qin Hongling, Wang Wei
Принадлежит:

The invention discloses a method and a device for collecting and measuring leakage water of a large-scale rice field undisturbed soil column. The method comprises the following steps: A, determining a leakage liquid standard collection area according to a base area of the soil column; B, embedding a conic filter at the middle position of the soil column, where an underlying surface is arranged, wherein the middle position is lower than the underlying surface; and completely collecting soil column leakage liquid inside the area at the bottom surface of the conic leakage filter; C. grooving to lead an aqueduct out from the flat surface of the underlying surface of the soil column by utilizing topographic fall head formed when the undisturbed soil column is distributed; and D. firstly opening an air vent of a measurement barrel to ventilate when the leakage liquid is collected, recording the scale of the measurement barrel at regular intervals, uniformly stirring a water sample by a glass ...

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Номер записи: 3
04-09-2013 дата публикации

Valve-controlled type lead-acid storage battery

Номер: CN103280582A
Автор: Hu Shuihua, Zhang Xiaoming, Li Chuanxin, Wei Wenxue
Принадлежит:

The invention discloses a valve-controlled type lead-acid storage battery. Lead plaster in a positive plate of the valve-controlled type lead-acid storage battery comprises the following active substances in percentage by weight: 68%-81% of lead powder, 3%-12% of red lead, 0.05%-0.15% of short fiber, 7%-11% of deionized water, 5%-10% of sulphuric acid with the density of 1.4g/mL and 0.2%-1% of additive; and the lead plaster in a negative plate of the valve-controlled type lead-acid storage battery comprises the following active substances in percentage by weight: 68%-82% of lead powder, 0.1%-0.3% of short fiber, 6%-15% of deionized water, 5%-15% of sulphuric acid with the density of 1.4g/mL, 0.1%-0.5% of acetylene black, 0.1%-1% of humic acid, 0.1%-1% of lignin and 0.5%-0.8% of barium sulfate. The valve-controlled type lead-acid storage battery produced according to the formulas of a positive electrode and a negative electrode has the advantages that the low-temperature discharge performance ...

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Номер записи: 4
10-07-2013 дата публикации

V-shaped diesel engine cylinder body for ship

Номер: CN103195601A
Автор: Li Youchang, Tan Mingzhi, Wei Wenxue, Tan Wen, Shen Jie
Принадлежит:

The invention discloses a V-shaped diesel engine cylinder body for a ship. The V-shaped diesel engine cylinder body comprises a V-shaped part positioned at the upper part and a crankcase positioned at the lower part, wherein a transverse cylindrical oil cooler cavity is formed in the middle of a V angle of the V-shaped part; and the oil cooler cavtiy is paralllel to a main oil gallery of the V-shaped diesel engine cylinder body. As the oil cooler cavity is arranged in the middle of the V angle of the V-shaped part, the lubricating oil cooling effect is good and the V-shaped diesel engine cylinder body is compact in struture, reasonable in layout and beatiful in appearance; and in addition, a monoblock pump cavity is obliquely arranged at a certian angle with the vertical diretion, and the top surface of the monoblock pump cavity and the gas distribution part of a V-shaped diesel engine are not on the same plane, so that a designed cylinder cover does not need to be matched with the top ...

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Номер записи: 5
08-05-2013 дата публикации

Root box culture device for researching crop rhizosphere nitrous oxide emission mechanism

Номер: CN103081746A
Автор: Zhang Zhenxing, Zhang Wenzhao, Wei Wenxue
Принадлежит:

The invention discloses a root box culture device for researching a crop rhizosphere nitrous oxide emission mechanism. The root box culture device for researching the crop rhizosphere nitrous oxide emission mechanism comprises a base seat, a root distance control board, a cylindrical box body, a root bag and a gas collecting device, wherein the bottom end of the cylindrical box body is arranged on a base plate, the root distance control board is arranged on the base plate and located inside the cylindrical box body, inserting holes are respectively and evenly formed in all circumferences with predetermined diameters on the root distance control board, the circumferences have the same central point, and stainless steel columns are inserted into the inserting holes and are perpendicular to the base seat. The cylindrical box body is composed of two semi-circular polyvinyl chloride (PVC) pipes, joint positions of the two semi-circular PVC pipes are filled with silica gel pads, and stainless ...

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Номер записи: 6
18-07-2012 дата публикации

Method for estimating net carbon reserve in surface soil of rice field

Номер: CN102590007A
Автор: Chen Anlei, Xie Xiaoli, Wei Wenxue, Chen Chunlan, Zhu Hanhua
Принадлежит:

The invention discloses a method for estimating the net carbon reserve in surface soil of a rice field. The method comprises the following steps of A, determining benchmark statistics thickness of the surface soil and calculating the inner-surface soil quality and the carbon reserve in the soil based on the thickness; B, determining the inner-surface soil volume weight and the organic carbon content based on the ith-year benchmark statistics thickness of a test and the organic carbon content in the inner-surface soil based on the double benchmark statistics thickness, and calculating the inner-surface soil mass and the carbon reserve in the soil based on the ith-year benchmark statistics thickness of the test; C, calculating the difference between the inner-surface soil masses based on the benchmark statistics thickness before and after the i year of the test according to the principle of mass conservation; D, determining a carbon reserve correction method through the surface soil mass ...

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Номер записи: 7
28-11-2012 дата публикации

Diesel engine waste gas generating device

Номер: CN102797544A
Автор: Hu Junfang, Huang Yongzhong, Shen Jie, Zhong Hu, Wei Wenxue, Li Wei
Принадлежит:

The invention discloses a diesel engine waste gas generating device. The diesel engine waste gas generating device comprises a waste gas driven turbine and a generator connected with the turbine in a large-speed-ratio decelerated driving manner. According to the technical scheme of the invention, the waste gas from a diesel engine is directly used for pushing the turbine to drive the generator to generate electricity, so that the diesel engine waste gas generating device is high in waste gas energy recycle rate and can normally generate electricity under the work condition of low load.

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Номер записи: 8
11-07-2012 дата публикации

Nitrogen fertilizer synergist for vegetable planting and application method of synergist

Номер: CN102557842A
Автор: Li Mingde, Wu Haiyong, Wei Wenxue, Liu Qiongfeng
Принадлежит:

The invention relates to a nitrogen fertilizer synergist for vegetable planting and an application method of the synergist. The nitrogen fertilizer synergist is prepared by screening a high-efficiency urease inhibitor (quinhydrone), a nitrification inhibitor (dicyandiamide) and sepiolite with appropriate prices and good effects in a ratio of 1:10:100, 15 to 20kg of synergist is applied per mu in a single season, the synergist serving as a base fertilizer is applied to soil after being fully mixed with other conventionally applied base fertilizers uniformly, and the total amount of a nitrogen fertilizer in the base fertilizer is reduced by 20 to 30 percent compared with the local conventional using amount. The synergist is easy to operate, the yield and quality of vegetables can be improved on the basis that the cost of the nitrogen fertilizer is saved by 20 to 30 percent, the pollution of the nitrogen fertilizer can be relieved to a certain extent, the nitrogen fertilizer is efficiently ...

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Номер записи: 9
28-11-2012 дата публикации

Cylinder cover for diesel engine

Номер: CN102797583A
Автор: Li Wei, Wei Wenxue, Kou Chuanfu, Qin Zhenshan, Li Yuhe
Принадлежит:

The invention discloses a cylinder cover for a diesel engine. A rocker arm shaft (3) is inserted into a rocker arm shaft mounting hole of the cylinder cover (2) for the diesel engine; and an inlet valve rocker arm (5) and an exhaust valve rocker arm (6) are sleeved on the rocker arm shaft (3) respectively. According to the technical scheme, a rocker arm shaft support is integrated with the cylinder cover, so that the cylinder cover with the rocker arm shaft support is convenient to machine; and simultaneously, the cylinder cover has a compact and simple structure and is convenient to maintain, and a positioning process is not required in the process of assembling all the parts.

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Номер записи: 10