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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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Применить Всего найдено 2. Отображено 2.
27-08-2021 дата публикации

Construction trolley for bridge anti-collision guardrail

Номер: CN214059670U
Автор: CAO XUEYU, LIU YANG, HAN WENJIE, DONG XIAOHUI, LI XUDAN, LIU WEI, ZHU TIEZENG, 曹学禹, 刘阳, 韩文杰, 董笑慧, 李旭丹, 刘伟, 朱铁增
Принадлежит: HENAN COLLEGE OF TRANSP, HENAN COLLEGE OF TRANSPORTATION, 河南交通职业技术学院

The utility model discloses a construction trolley for a bridge anti-collision guardrail, and relates to the technical field of building construction, the construction trolley comprises a bottom plate, one side of the upper surface of the bottom plate is movably connected with a rotating disc, the upper surface of the rotating disc is fixedly connected with a limiting frame and a fixing frame, one side of the fixing frame is movably connected with a lifting rod, and the lifting rod is fixedly connected with the rotating disc. One side of the limiting frame is movably connected with a telescopic column, and the other end of the telescopic column is fixedly connected with a lifting rod. According to the construction trolley for the bridge anti-collision guardrail, lifting of the lifting rod can be achieved through mutual matching of a telescopic column and the lifting rod, so that objects can be better clamped, a first motor drives a threaded column to be matched with a threaded hole, and ...

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Номер записи: 1
18-08-2023 дата публикации

Method for measuring first discharge specific capacity of sodium ion battery positive electrode metal oxide material

Номер: CN116609682A
Автор: WANG NINGFEI, MO WUQIU, LI XUDAN, YE YUXIN, YANG YUNLIN
Принадлежит:

The invention discloses a method for determining the first specific discharge capacity of a sodium ion battery positive electrode metal oxide material, which comprises the following steps: (1) providing a negative electrode shell, foamed nickel, a sodium sheet, a diaphragm, an electrolyte, a pole piece and a positive electrode shell, and mixing sodium perchlorate, an additive and a non-aqueous solvent to prepare the electrolyte; the diaphragm is a glass fiber diaphragm; the surface of the aluminum foil is coated with slurry, a pole piece is prepared after drying, rolling and punching, and the slurry comprises an adhesive, a conductive agent, a positive electrode material and oxalic acid; (2) assembling the negative shell, the foamed nickel, the sodium sheet, the diaphragm, the electrolyte, the pole piece and the positive shell into a battery; and (3) testing the manufactured battery by adopting a blue electricity test cabinet, setting the nominal specific capacity to be 130mAh/g, the charging ...

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Номер записи: 2