Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 4. Отображено 4.
03-06-2015 дата публикации

Underway structure and construction method thereof

Номер: CN104674625A
Принадлежит:

The invention discloses an underway structure, which comprises a prefabricated concrete base, a prefabricated steel pipe, a carriageway plate, a pit backfill and an upper pavement, wherein the prefabricated concrete base is located in a pit; the prefabricated steel pipe is located on the base; the carriageway plate is located in the prefabricated steel pipe; the upper pavement is arranged on the upper surface of the pit backfill. The underway structure is suitable for an open cut method for the underway; the base and the steel pipe can be prefabricated in advance before the pit is complete; the base and the steel pipe can be directly mounted after the pit is finished; a cast-in-situ member is not needed; the construction cycle is greatly shortened; and the traffic impact on pedestrian and vehicles on the pavement is reduced. Meanwhile, the invention further discloses a construction method employing the structure. The method is good on construction safety and short in construction cycle.

Подробнее
17-06-2015 дата публикации

Reinforced concrete arch bridge construction method combined with cast-in-place cantilever method and stiff skeleton method

Номер: CN104711933A
Принадлежит:

The invention discloses a reinforced concrete arch bridge construction method combined with a cast-in-place cantilever method and a stiff skeleton method. The reinforced concrete arch bridge construction method is characterized by comprising the following steps that (1) the cast-in-place cantilever method is used for pouring arc ring sections in left-right symmetry and segmentation modes, the length of the arc ring sections formed by the cast-in-place cantilever method is 1/2-3/4 of the full length of an arch ring, the weight of each section is not larger than 200 tons, and after the previous section is hardened for 7-10 days, the next section begins to be poured; (2) the arc ring sections with the tops opened are formed in the step (1), stiff skeletons are erected at the openings, and the two ends of each stiff skeleton are connected with the adjacent left arc ring section and the right arc ring section respectively; (3) stiff skeleton section concrete is poured in a segmentation mode, ...

Подробнее
02-12-2015 дата публикации

Concrete beam - wave form steel web beam combination continuous bridge

Номер: CN0204825614U
Принадлежит:

The utility model discloses a concrete beam - wave form steel web beam combination continuous bridge, including establishing thoughtlessly congealing soil box roof beam section and establishing at pontic span centre duan bingyu on the pier thoughtlessly congeal soil box roof beam section fixed connection's wave form steel web case roof beam section, 14-13 of footpath is striden for the pontic to the length of wave form steel web case roof beam section. This concrete beam - wave form steel web beam combination continuous bridge, adopt the form of thoughtlessly congealing soil box roof beam and the combination of corrugated steel web case roof beam, the great soil box roof beam section of thoughtlessly congealing of wherein conducting oneself with dignity is located on the pier of pontic below, and wave form steel web case roof beam period number in the span centre section of pontic of conducting oneself with dignity lessly, through the longitudinal mixing, the shortcoming separately of concrete ...

Подробнее
18-04-2023 дата публикации

Protein and application thereof in improving parasporal crystal protein virulence of bacillus thuringiensis

Номер: CN115974989A
Принадлежит:

The invention provides a protein and application thereof in improving parasporal crystal protein virulence of bacillus thuringiensis. The protein comprises a protein with an amino acid sequence as shown in SEQ ID NO: 1. After the protein and the parasporal crystal protein act together, the toxicity, especially the insecticidal ability, of the parasporal crystal protein can be effectively improved, so that the use amount of the parasporal crystal protein is reduced, the insecticidal cost is reduced, the insecticidal efficiency is improved, and the protein is suitable for large-scale popularization and application.

Подробнее