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 10. Отображено 10.
02-07-2014 дата публикации

Water-saving system of centralized bathroom

Номер: CN103898948A
Автор: WU JIANG, DING ZEWEI, YIN CONGJUE, ZHANG WEIFENG, MO DI, LI FANGQIN, WEI LAN, QIN XIN, SUN SHENG, LIU XUYANG
Принадлежит:

The invention relates to a water-saving system of a centralized bathroom. A sewage drainage pipe of a bathroom is connected with a secondary water tank via a filtration shunt pipe and a water tank inlet pipe; the secondary water tank is connected with a urinal water tank via a water tank outlet pipe and a booster water pump; a float switch is arranged in the secondary water tank; the secondary water tank is connected with a running water delivery pipe via the float switch; a bypass pipe is arranged at the upper part of the secondary water tank and is connected with a sewage sewer drainage pipe; the float switch and the booster water pump are respectively connected with a control circuit. According to the system, the mode that a toilet is flushed by using bath water and running water together is adopted and is different from an original mode that a toilet is singly flushed by filtration wastewater. Most of bath water is simply filtered and is used as a part of water for flushing the toilet ...

Подробнее
Номер записи: 1
02-05-2012 дата публикации

Method for preparing tetrahydrofuran by dehydration and cyclization of 1,4-butanediol

Номер: CN0101298444B
Автор: NIU YONGLIANG, XIAN YI, LI HENG, SHU CHENGPING, SHENG LEI, DING ZEWEI, HUA HUAIFENG, YONGLIANG NIU, YI XIAN, HENG LI, CHENGPING SHU, LEI SHENG, ZEWEI DING, HUAIFENG HUA
Принадлежит:

The invention relates to a method for preparing tetrahydrofuran by 1, 4-butanediol through cyclodehydration; a catalyst for cyclodehydration reaction is a strong acidic ion exchange resin and the reaction temperature is 50 to 150 DEG C; as the strong acidic ion exchange resin catalyst is adopted, the reaction can be carried out under lower temperature and pressure, which greatly improves the processing capacity of the 1, 4-butanediol simultaneously when maintaining higher conversion rate and selectivity; furthermore, the catalyst has no causticity; special devices are not needed in the reaction process; and the temperature and pressure needed by the reaction are lower, thereby reducing the energy consumption and the manufacture cost to a large extent.

Подробнее
Номер записи: 2
11-04-2023 дата публикации

Operation and maintenance abnormal value identification method and device, intelligent operation and maintenance system and storage medium

Номер: CN115952059A
Автор: ZHANG XIAOMIN, JI YANMING, CHEN LE, LIU YANSONG, CHEN YONG, DING ZEWEI, XIAO ZHONGLIANG, CHEN LIHUA, CAI ZICHAO, XU ZITAO, DING GE, ZHU GUOZHONG, ZHANG ZEHAN, WANG CAIHONG, LUO CHAOTONG, XUE RONGRONG
Принадлежит:

The invention discloses an operation and maintenance abnormal value identification method and device, an intelligent operation and maintenance system and a storage medium. The method comprises the steps of obtaining operation and maintenance difference data, wherein the operation and maintenance difference data comprises at least one difference value set; for the difference value set, respectively calculating the cross entropy of the first difference subset, the cross entropy of the second difference subset, the intra-class variance of the first difference subset and the intra-class variance of the second difference subset; according to the cross entropy of the first difference subset corresponding to the threshold value, the cross entropy of the second difference subset, the intra-class variance of the first difference subset and the intra-class variance of the second difference subset, calculating to obtain an inter-class variance corresponding to the threshold value; and determining ...

Подробнее
Номер записи: 3
01-02-2012 дата публикации

Novel insole

Номер: CN0202127910U
Автор: WEI YU, SONGLEI TAO, ZEWEI DING, YU WEI, TAO SONGLEI, DING ZEWEI
Принадлежит: UNIV ZHEJIANG SCIENCES, ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

A novel insole comprises an insole (1) and circular sheet-shaped permanent magnets (2), and is characterized in that seven circular sheet-shaped permanent magnets with the same size are attached on the surface of the insole, and the radius of each permanent magnet is 0.88mm, when the insole is used, magnetic fields generated by the circular sheet accurately cover important acupuncture points on the sole, high-strength magnetic force lines penetrate through the corresponding acupuncture points, so that cells can be activated, metabolism of cells can be promoted, oxygen carrying capacity of red blood cell can be improved, blood viscosity is reduced, microcirculation is improved, discharge of harmful substances such as wastes and the like in the cells can be quickened, and the health care effect can be achieved. The novel insole has a simple structure, is convenient and practical, has long service life and has good practical applicability.

Подробнее
Номер записи: 4
21-01-2009 дата публикации

Purification process of oligo-ether containing heteropoly acid

Номер: CN0101348565A
Автор: SHENG LEI, SHU CHENGPING, LI HENG, NIU YONGLIANG, XIAN YI, DING ZEWEI, HUA HUAIFENG, LEI SHENG, CHENGPING SHU, HENG LI, YONGLIANG NIU, YI XIAN, ZEWEI DING, HUAIFENG HUA
Принадлежит:

The invention relates to a purification process for a low polyether containing heteropoly acid. Low polyether raw liquid containing heteropoly acid is passed through an inorganic membrane filter device for filtering and reaching the aim of purification. The inorganic membrane filter device is adopted to remove the heteropoly acid in the low polyether, and the content of the heteropoly acid in the purified low polyether is less than 50ppm, thereby having a good purification effect. In addition, the process has a simple operation and no pollution; the separated heteropoly acid can be recovered for reuse, thereby remarkably reducing production cost.

Подробнее
Номер записи: 5
23-06-2023 дата публикации

Preparation method of lithium hexafluorophosphate

Номер: CN116282085A
Автор: ZHANG YONGYAO, WU HAIFENG, XIE HAOJIE, WEI YOUCHANG, DING ZEWEI, MA XIAOHONG
Принадлежит:

The invention discloses a preparation method of lithium hexafluorophosphate, which comprises the following steps: mixing a pentavalent phosphorus oxide with a pyridine solution of hydrogen fluoride, and carrying out fluoridation reaction to obtain pyridine hexafluorophosphate; the method comprises the following steps: carrying out lithiation reaction on pyridine hexafluorophosphate in an organic solvent, removing water from phosphorus pentoxide, and filtering to obtain an organic solution containing lithium hexafluorophosphate; the organic solution can be used for preparing a lithium hexafluorophosphate solid product, and also can be used for preparing a lithium hexafluorophosphate liquid product by using an electrolyte solvent. Meanwhile, the invention also relates to a method for realizing recycling of hydrogen fluoride, pyridine and phosphorus element by mixing excessive fluorinating reagent and phosphorus pentoxide dewatered precipitate to carry out secondary fluorination reaction.

Подробнее
Номер записи: 6
11-01-2012 дата публикации

Purification process of oligo-ether containing heteropoly acid

Номер: CN0101348565B
Автор: XIAN YI, HUA HUAIFENG, LI HENG, SHU CHENGPING, SHENG LEI, NIU YONGLIANG, DING ZEWEI, YI XIAN, HUAIFENG HUA, HENG LI, CHENGPING SHU, LEI SHENG, YONGLIANG NIU, ZEWEI DING
Принадлежит:

The invention relates to a purification process for a low polyether containing heteropoly acid. Low polyether raw liquid containing heteropoly acid is passed through an inorganic membrane filter device for filtering and reaching the aim of purification. The inorganic membrane filter device is adopted to remove the heteropoly acid in the low polyether, and the content of the heteropoly acid in thepurified low polyether is less than 50ppm, thereby having a good purification effect. In addition, the process has a simple operation and no pollution; the separated heteropoly acid can be recovered for reuse, thereby remarkably reducing production cost.

Подробнее
Номер записи: 7
02-07-2014 дата публикации

Adaptive tunneling cleaning device for rectangular ventilating ducts

Номер: CN103894383A
Автор: WU JIANG, YUAN BINXIA, DING ZEWEI, JIANG XUEZHEN, GAO HAN, QIN XIN, WEI LAN, ZHANG WEIFENG, SUN SHENG, LIU XUYANG
Принадлежит:

The invention relates to an adaptive tunneling cleaning device for rectangular ventilating ducts. The adaptive tunneling cleaning device comprises four tunneling supports, a moving baffle, a fixed baffle, a lead screw, a step motor, rails and a spring. The middle of the fixed baffle is fixedly connected with the rails, the moving baffle is slidably connected on the rails, the four uniformly distributed tunneling supports are movably connected on the outer edge surface of the fixed baffle and are movably connected with the moving baffle through connecting rods, the middle of the moving baffle is in screwed connection with the lead screw, the lower end of the lead screw penetrates the fixed baffle and the step motor, and the spring sleeves the lead screw between the fixed baffle and the moving baffle. The adaptive tunneling cleaning device has high adaptability, is capable of efficiently cleaning various specifications of ventilating ducts, and has the advantages of low energy consumption ...

Подробнее
Номер записи: 8
05-11-2008 дата публикации

Method for preparing tetrahydrofuran by dehydration and cyclization of 1,4-butanediol

Номер: CN0101298444A
Автор: SHU CHENGPING, NIU YONGLIANG, DING ZEWEI, SHENG LEI, LI HENG, XIAN YI, HUA HUAIFENG, CHENGPING SHU, YONGLIANG NIU, ZEWEI DING, LEI SHENG, HENG LI, YI XIAN, HUAIFENG HUA
Принадлежит:

The invention relates to a method for preparing tetrahydrofuran by 1, 4-butanediol through cyclodehydration; a catalyst for cyclodehydration reaction is a strong acidic ion exchange resin and the reaction temperature is 50 to 150 DEG C; as the strong acidic ion exchange resin catalyst is adopted, the reaction can be carried out under lower temperature and pressure, which greatly improves the processing capacity of the 1, 4-butanediol simultaneously when maintaining higher conversion rate and selectivity; furthermore, the catalyst has no causticity; special devices are not needed in the reaction process; and the temperature and pressure needed by the reaction are lower, thereby reducing the energy consumption and the manufacture cost to a large extent.

Подробнее
Номер записи: 9
01-02-2012 дата публикации

Novel towel

Номер: CN0202128388U
Автор: WEI YU, SONGLEI TAO, ZEWEI DING, YU WEI, TAO SONGLEI, DING ZEWEI
Принадлежит: UNIV ZHEJIANG SCIENCES, ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Provided is a novel towel, comprising a soft face (1) of a common towel and a hard face (2) of a rubbing towel. The novel towel is advantageous in that three edges of the soft face and those of the hard face are bonded together with one edge not being bonded; when washing face, one can use the soft face, and when taking a bath, one can use the hard face; the opening can be placed with cleaning agents. The novel towel is simple in structure, convenient and practical in use, multiple in function and good in practicability.

Подробнее
Номер записи: 10