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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 3. Отображено 3.
14-07-2023 дата публикации

Preparation method of high-hardness nano periodic grating

Номер: CN116430493A
Автор: SHAN CHONG, JIAO JIAN, ZHAO XIAOHUI, CUI YONG, GAO YANQI, JI LAILIN, RAO DAXING, XIA LAN, FENG WEI, LIU DONG, SHI JIAN, CAI GUODONG, ZHU XIANGYU
Принадлежит:

The invention discloses a preparation method of a high-hardness nano periodic grating. The method comprises the following steps: firstly, carrying out surface impact strengthening on a grating preparation material by utilizing a laser strengthening device; cleaning and polishing the reinforced grating preparation material; and finally, processing the polished grating preparation material by using a nano periodic grating preparation laser system to prepare the nano periodic grating. According to the preparation method of the high-hardness nanometer periodic grating, the prepared nanometer periodic grating structure has the advantages of being high in strength and good in abrasion resistance, the problem that the nanometer periodic grating prepared in a traditional mode is extremely fragile is solved, the use and maintenance cost is greatly reduced, and application scenes under more extreme conditions are expanded.

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Номер записи: 1
11-04-2023 дата публикации

Micro-displacement sensing device and measuring method based on broadband light spatial domain-spectral domain microscopic interferometry

Номер: CN115950362A
Автор: ZHENG QUAN, CUI YONG, JI LAILIN, RAO DAXING, HE RUIJING, LIU JIA, SHI JIAN, ZHANG FAWANG
Принадлежит:

The invention provides a micro-displacement sensing device based on broadband light spatial domain-spectral domain microscopic interferometry, which comprises a broadband light source, a Kohler illumination system, a microscope tube, an interference objective lens, a measured piece, a precise electric control platform, a beam splitter, a scientific CCD (Charge Coupled Device), a light guide optical fiber, a multi-channel spectrograph and a computer, and also relates to a micro-displacement measuring method. According to the device and the method, non-contact displacement sensing is adopted, damage to a measurement piece is avoided, axial scanning is not needed in the measurement process, the measurement efficiency is high, the time is short, and instant measurement can be achieved; according to the measurement method, a spatial domain interference method and a spectral domain interference method of broadband light are combined, small displacement sensing is carried out through spatial domain ...

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Номер записи: 2
06-06-2023 дата публикации

Construction method for backfilling engineering of flow-state solidified soil backfilling steel sheet pile supporting pipeline

Номер: CN116220064A
Автор: FAN XIHUI, SHI JIAN, WANG JUN, ZENG WENCHAO
Принадлежит:

The invention discloses a construction method for backfilling engineering of a steel sheet pile supporting pipeline by backfilling fluid-state solidified soil. The construction method comprises the steps of steel sheet pile driving, earth excavation, steel sheet pile supporting, foundation pit sand foundation, pipeline anti-floating, pouring and fixing, pile pulling, re-pouring of the fluid-state solidified soil, pulling out of the steel sheet pile, maintenance and the like. According to the construction method, the floating problem of the pipeline in the construction process is solved by adopting the flow-state solidified soil, the in-situ gap filling problem during pile pulling and after pile pulling is backfilled by using the flow-state solidified soil, the slurrying and grouting processes after pile pulling are simplified, the pipeline engineering construction process is optimized, and the technical effects of simplifying the construction process are achieved.

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Номер записи: 3