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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 4. Отображено 4.
12-05-2023 дата публикации

Large-span roadway asynchronous tunneling method and key parameter determination method

Номер: CN116104501A
Автор: ZHANG DINGDING, MA CHENYANG, CHAI JING, YANG JIANFENG, LIU YONGLIANG
Принадлежит:

The invention provides a large-span roadway asynchronous tunneling method and a key parameter determination method, and relates to the technical field of coal mining. Step 2, asynchronous continuous mining process; the invention further provides a large-span roadway asynchronous tunneling key parameter determining method. The method comprises the steps that the construction width 2b'of the primary tunneling and anchoring procedure is calculated according to the size of existing equipment needed by the procedure; establishing a roof mechanical model, solving an expression of the length 2a'of the tunneling empty roof area by using a tensile failure criterion as a judgment condition, and calculating a limit length 2a 'by using the expression; plastic zone distribution, vertical displacement distribution and vertical stress distribution conditions of roadway surrounding rock under different lag distances are calculated through FLAC numerical simulation, and the condition for selecting the lag ...

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Номер записи: 1
28-12-2017 дата публикации

INTELLIGENT TRASH BIN

Номер: WO2017219932A1
Автор: LIU, Jinxiong, LI, Xiren, HUANG, Junping, ZHANG, Dingding
Принадлежит:

An intelligent trash bin, comprising a bin body (1'). A suction inlet (101') adhered to the ground is provided on the bin body (1'). An inner bin (2') provided with a trash bag (3') is disposed in the bin body (1'). A plurality of differential pressure holes (201') is formed on the peripheral wall of the inner bin (2'). Each differential pressure hole (201') is in communication with an exhaust passage (42') outside the periphery of the inner bin (2'). Or, another intelligent trash bin is provided, comprising an outer bin (1) and an inner bin (2). A cavity (100) for accommodating the inner bin is provided in the outer bin. An opening is formed at the top of the inner bin (2). The outer bin (1) matches a top cover (3) that serves as a shared close cover of the outer bin (1) and the inner bin (2). An air inlet (101) and a corresponding air outlet (102) are provided at the bottom of the outer bin (1). An air intake pipe (21) and an air exit pipe (22) are disposed in the inner bin (2). The air ...

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Номер записи: 2
30-05-2023 дата публикации

Litter decomposition bag

Номер: CN116183835A
Автор: QIU KAIYANG, ZHANG SHUO, BAO PING'AN, ZHANG DINGDING, XIE YINGZHONG
Принадлежит:

The invention provides a litter decomposition bag, and relates to the technical field of litter decomposition, the litter decomposition bag comprises a support frame and a mesh bag, the mesh bag is provided with an opening capable of being opened and closed, the support frame is arranged in the mesh bag to support the mesh bag, and the aperture of a mesh sheet at the bottom of the mesh bag is 0.05 mm-0. 15mm. The litter decomposition bag provided by the invention can simulate the decomposition of litters in a natural state and avoid leakage.

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Номер записи: 3
28-04-2023 дата публикации

Coking wastewater zero discharge treatment system and process

Номер: CN116022965A
Автор: HAN XIAOPING, XU GUOZHI, BAO CHANGCHUN, MI YINGJIE, ZHI TONGTONG, SUN MINGYUE, CHEN CHANGSONG, ZHAO SHUGUANG, WANG JUN, ZHANG DINGDING, ZHAO GUOHUA, ZHANG HONGBIN, KANG CHENXU, FAN ZHIYONG, HE SONGJIANG, ZENG KE
Принадлежит:

The invention discloses a coking wastewater zero discharge treatment system which comprises an adjusting tank, a first-stage defluorination high-density tank, a second-stage hardness removal high-density tank, a multi-medium filter, an ultrafiltration device, a two-stage chelating resin hardness removal filter, an organic matter separation membrane device, a first-stage nanofiltration membrane device, a reverse osmosis membrane device, a reuse water tank and a sodium chloride evaporative crystallization device which are connected in sequence, in addition, the organic matter separation membrane device is further sequentially connected with a concentrated water nanofiltration membrane device, a sodium sulfate evaporation and concentration device, a sodium sulfate freezing and melting device, a mixed salt evaporation and crystallization device and a carnallite drying device. The invention also discloses a coking wastewater zero discharge treatment process. According to the invention, the removal ...

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Номер записи: 4