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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 2. Отображено 2.
15-08-2023 дата публикации

Concrete stirring device for building construction

Номер: CN116587434A
Автор: LIU XINYUN, MA SEN, LI YAFEI, WANG GENGXING, AI HUIMIN, SUN ZHENZHEN, SHI XIN, ZHOU FAN, ZHANG HUIXIAO, LIU RU, PANG WEI, LI ANG
Принадлежит:

The invention discloses a concrete stirring device for building construction in the technical field of building construction, the concrete stirring device comprises a base, a fixed box and a stirring box, a rotating assembly, a moving assembly and a driver are arranged on the fixed box, a plurality of placing mechanisms and forming dies are arranged on the outer side of the rotating assembly, and a stirring shaft and a driving assembly are arranged in the stirring box. According to the device, the rotating assembly and the moving assembly are made to work in turn through the driving assembly, so that the positions of the forming dies are switched in sequence, the forming dies move at the discharging assembly, and materials are distributed more evenly; by arranging the multiple protruding blocks, materials in the forming die are vibrated to be flat, and the concrete forming effect is improved; the functions of smashing, screening, stirring, forming and the like are integrated, continuous ...

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Номер записи: 1
02-07-2014 дата публикации

High-dimensional multi-target set evolutionary optimization method based on preference of decision maker

Номер: CN103903072A
Автор: GONG DUNWEI, WANG GENGXING, HAN YUYAN, QIN BEI, SUN FENGLIN, SUN XIAOYAN, CHENG QINGSONG, LIU YIPING, LU YI'NA
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The invention relates to a high-dimensional multi-target set evolutionary optimization method based on preference of a decision maker. According to the method, the objective function of an original optimization problem is converted into an expectation function according to the preferential area of each target given by the decision maker; the expectation function optimization problem is converted into a two-target optimization problem with a set formed by multiple solutions of the original optimization problem as a new decision variable and the hypervolume and the satisfaction degree of the preference of the decision maker as a new objective function; an internal self-adaptive crossing strategy of individuals of the set is designed according to the hypervolume contribution degree of the solutions of the original optimization problem in the set and the satisfaction degree of the preference of the decision maker; furthermore, an individual variation strategy of the set is designed by means ...

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Номер записи: 2