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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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Применить Всего найдено 4. Отображено 4.
01-02-2012 дата публикации

Soil wind erosion measuring device

Номер: CN0101799355B
Автор: DOU TIELING, LIU YUHUA, SHI JINGSUN, ZHANG LIFENG, ZUO QIHUA, TIELING DOU, YUHUA LIU, JINGSUN SHI, LIFENG ZHANG, QIHUA ZUO
Принадлежит:

The invention discloses a soil wind erosion measuring device. Tracks are arranged on two long edges of a rectangular support; a ventilating duct of which the longitudinal section is in a shape of a 'horn' is erected on the tracks; a ventage of the ventilating duct is an air outlet, and the air outlet is downwards and forms an included angle of between 10 and 30 degrees with the ground; axial flowfans are arranged in the ventilating duct side by side; idler wheels matched with the support tracks are arranged on both sides of the ventilating duct; a rocking handle is arranged on a driving shaft; the rocking handle is shaken, so that the ventilating duct makes parallel movement forwards along the support tracks; a sand table is arranged in the front of the ventilating duct below the support; a wind erosion object receiver is arranged in the front of the sand table; and when the ventilating duct moves forwards, strong air currents blown from the air outlet of the ventilating duct blow wind ...

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Номер записи: 1
04-08-2010 дата публикации

Method for preventing and removing weeds and reducing evaporation in farmland

Номер: CN0101790949A
Автор: TIELING DOU, YUHUA LIU, LIFENG ZHANG, QIHUA ZUO, DOU TIELING, LIU YUHUA, ZHANG LIFENG, ZUO QIHUA
Принадлежит:

The invention discloses a method for preventing and removing weeds and reducing evaporation in farmland. Soil is leveled and sowed according to the conventional method; a black mulching film is covered on the sowed soil; the black mulching film contains 2-3% of carbon black, the light transmittance is 1-3%, and the thickness is 0.008-0.01 mm; fine soil with the thickness of 1-2 cm covers the mulching film; and the adopted mulching film is easily degradable and does not contaminate soil. The invention obtains the beneficial effect that: after sprouting, weed seeds are restricted below the black mulching film, can not be irradiated by sun and finally dies so as to obtain the purpose of weeding. Because no damage exists except seed gaps when the whole farmland is covered by a soil-below film, the effect of water retention and water saving can be obtained, and the phenomenon of uncovering the film by strong wind can not happen; and meanwhile, moister below the film can not be evaporated because ...

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Номер записи: 2
11-08-2010 дата публикации

Soil wind erosion measuring device

Номер: CN0101799355A
Автор: TIELING DOU, YUHUA LIU, JINGSUN SHI, LIFENG ZHANG, QIHUA ZUO, DOU TIELING, LIU YUHUA, SHI JINGSUN, ZHANG LIFENG, ZUO QIHUA
Принадлежит:

The invention discloses a soil wind erosion measuring device. Tracks are arranged on two long edges of a rectangular support; a ventilating duct of which the longitudinal section is in a shape of a 'horn' is erected on the tracks; a ventage of the ventilating duct is an air outlet, and the air outlet is downwards and forms an included angle of between 10 and 30 degrees with the ground; axial flow fans are arranged in the ventilating duct side by side; idler wheels matched with the support tracks are arranged on both sides of the ventilating duct; a rocking handle is arranged on a driving shaft; the rocking handle is shaken, so that the ventilating duct makes parallel movement forwards along the support tracks; a sand table is arranged in the front of the ventilating duct below the support; a wind erosion object receiver is arranged in the front of the sand table; and when the ventilating duct moves forwards, strong air currents blown from the air outlet of the ventilating duct blow wind ...

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Номер записи: 3
01-07-2015 дата публикации

Injection-type underground water compensator-based novel control system

Номер: CN204426225U
Автор: ZHANG JIZONG, ZHANG LIFENG, ZHANG JINGUO, DOU TIELING, LIU YUHUA, LIANG SHUPING
Принадлежит: UNIV HEBEI AGRICULTURE, AGRICULTURAL UNIVERSITY OF HEBEI

The utility model discloses an injection-type underground water compensator-based novel control system, which consists of a power supply, a pressure lever, a travel switch and a water compensator. When the novel control system works, the travel switch is in a normally closed state; the pressure lever rotates along with a sprocket shaft rotating synchronously with a duckbilled planting apparatus; when the planting apparatus is inserted underground, a travel switch roller is shifted to enable a circuit to be connected to inject water; when the pressure lever rotates away from the roller along with the sprocket shaft, a rocker arm automatically resets; the travel switch is reset to be in the normally closed state to turn off the circuit to stop water injection. According to the novel control system disclosed by the utility model, the water compensation quantity can be changed by adjusting the position of the rocker arm of the travel switch, and is steplessly regulated within a certain range ...

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Номер записи: 4