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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 6. Отображено 6.
26-03-2014 дата публикации

Chipless tapping lubricating agent and preparation method thereof

Номер: CN103666664A
Автор: LIU TIANSHAN, XIE ZONGSHENG, WANG XIAOLONG
Принадлежит:

The invention discloses a chipless tapping lubricating agent. The lubricating agent comprises the following raw materials: petroleum calcium sulfonate, chlorinated paraffin, polymethyl methacrylate dispersion, sulfurized olefin, vegetable oil and n-alkanes base oil. The polymethyl methacrylate is scientifically dispersed by taking methylpropane oleate as an intermediate, a stable liquid phase system is formed, extreme pressure agents and oiliness agents are assisted, a lubricating agent with high bearing performance is formed, the polymethyl methacrylate is spirally and linearly expanded along with tapping texture in the tapping retraction process, a continuous and dense liquid-state protective layer is formed, isolated tapping is directly contacted with an inner wall of a nut, and a chipless effect is achieved. Moreover, environment-friendly n-alkanes base oil is adopted, the polymethyl methacrylate is dispersed in the n-alkanes base oil, the extreme pressure agents and oiliness agents ...

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Номер записи: 1
13-06-2023 дата публикации

Novel method for detecting total mercury in marine sediment by ICP-MS

Номер: CN116256421A
Автор: LIAO YONGZHI, ZHOU LIANGJING, YE XINYU, CHEN ZHONGZHENG, FENG SHAOBO, LAN LIUCHUN, WU XIANGQING, XIE ZONGSHENG, YANG SHULI, WU MINGYUAN, TONG GUIXIANG, HUANG LUANYU, CHEN JING, QIN ZHENFA, MENG YUAN
Принадлежит:

The invention discloses a novel method for detecting total mercury in marine sediments by ICP-MS (Inductively Coupled Plasma Mass Spectrometry), and belongs to the technical field of substance detection. The novel method for detecting the total mercury in the marine sediments by ICP-MS comprises the following steps: drying and crushing the sediments; adding a mixed digestion solution of nitric acid and hydrofluoric acid into the sample on the wall of the digestion tank, uniformly shaking, and digesting overnight at room temperature; transferring the digested sample solution into a microwave digestion system for digestion, cooling after complete digestion, adding a hydrogen peroxide solution, and digesting again by the same microwave digestion procedure; transferring the digestion tank to an acid expelling instrument for expelling acid, and then fixing the volume; and ICP-MS is adopted for determination. According to the method, nitric acid, hydrofluoric acid and hydrogen peroxide are utilized ...

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Номер записи: 2
01-08-2023 дата публикации

Navigation satellite random failure life prediction method and whole satellite life prediction method

Номер: CN116522596A
Автор: CAI HONGLIANG, FENG RU, MENG YINAN, ZHOU BO, ZHENG HENG, XIE ZONGSHENG
Принадлежит:

The invention provides a navigation satellite random failure life prediction method and a whole satellite life prediction method. The method comprises the following steps: constructing a navigation satellite life prediction model based on a Bayesian network; determining failure rates corresponding to failure mode nodes in the failure mode layer, wherein the failure mode nodes comprise single failure mode nodes causing failure of random failure type single machines and common failure mode nodes causing failure of redundant single machines; the failure rate corresponding to each failure mode node serves as data input of the model, the navigation satellite service life prediction model is operated in combination with the condition transition probability between all layers of nodes, the navigation satellite random failure rate is obtained, and then a navigation satellite random failure service life prediction value is determined; and determining the whole-satellite life prediction of the navigation ...

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Номер записи: 3
07-07-2023 дата публикации

Method for detecting formaldehyde gas by SnO2/SnS2/rGO ultrathin nanosheet gas sensor

Номер: CN116399914A
Автор: MENG DAN, KANG JIAQI, ZOU XINMING, SAN XIAOGUANG, XIE ZONGSHENG, LUAN KUNXI, XING YUTING
Принадлежит:

The invention discloses a method for detecting formaldehyde gas through a SnO2/SnS2/rGO ultrathin nanosheet gas sensor, and relates to a method for detecting formaldehyde gas through a nanosheet gas sensor, in the design and preparation process of a gas sensitive material, a simple and efficient hydrothermal method is adopted, and the synthesis formula comprises SnO2 preparation, SnO2 vulcanization and rGO introduction. The whole production process is simple in technology and good in controllability, and the prepared material is high in purity, good in dispersity, superexcellent in performance and suitable for large-scale industrial production. The SnO2/SnS2/rGO material prepared by the invention shows relatively high sensitivity, good selectivity and stability to formaldehyde at 100 DEG C, has the greatest advantage that detection at 100 DEG C can be realized, and provides a simple, convenient and rapid technical means for on-site online monitoring of indoor air pollutants; therefore, ...

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Номер записи: 4
26-03-2014 дата публикации

Water-based stamping and drawing lubricant, preparation method and using method

Номер: CN103666708A
Автор: LIU TIANSHAN, XIE ZONGSHENG, WANG XIAOLONG
Принадлежит:

The invention discloses a water-based stamping and drawing lubricant, a preparation method and a using method. The lubricant comprises the following raw materials in parts by weight: petroleum sodium sulfonate, a nonionic surfactant, a water-based interface lubricant, boric acid, triethanolamine, vegetable oil, a coupling agent and distilled water. The water-based interface lubricant comprises the following raw materials: alcohol ether carboxylic acid, polyoxy castor oil, olefin and chlorinated fatty acid in a weight ratio of 3:7:1:10. The water-based stamping and drawing lubricant disclosed by the invention can be directly used as an original liquid, or can be blended with water and diluted to use. The indexes of the lubricant reach or exceed related indexes of GB6144-85. The anti-rust singlechip of cast iron is over 72 hours, and the PB value is greater than 1380N. The lubricant can be used for stamping and drawing process of a black metal thin panel which is below 3mm. The interprocess ...

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Номер записи: 5
25-07-2023 дата публикации

Method for detecting trimethylamine by using SnO2-MoO3 nanosheet sensor

Номер: CN116482197A
Автор: MENG DAN, HE CHUN, LI RUIXIANG, SAN XIAOGUANG, XIE ZONGSHENG, KANG KEUN-WOONG, RAN SHUNJIANG
Принадлежит:

The invention discloses a method for detecting trimethylamine by using a SnO2-MoO3 nanosheet sensor, relates to a method for detecting trimethylamine, relates to a preparation method of a SnO2-MoO3 nanosheet, can be used for preparing a gas sensor for efficiently and accurately detecting trimethylamine, and belongs to the technical field of metal oxide semiconductor gas sensors. In the design and preparation process of the gas-sensitive material, a simple and efficient hydrothermal method is adopted, and an optimal structure is constructed by changing the proportion of raw materials, so that the gas-sensitive material has excellent application performance. The whole production process is simple in process, low in cost, good in controllability, non-toxic and harmless, and the prepared material is high in purity, good in crystallization, good in dispersity and suitable for large-scale industrial production. The SnO2-MoO3 nanosheet prepared by the invention shows relatively high sensitivity ...

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Номер записи: 6