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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 10. Отображено 10.
22-08-2023 дата публикации

Porous molecular sieve catalyst for olefin superposition and preparation method thereof

Номер: CN116618084A
Автор: LI WENLIN, YANG HAO, ZUO QI, ZHENG JIAJUN, LI RUIFENG
Принадлежит:

The invention discloses a porous molecular sieve catalyst for olefin superposition and a preparation method thereof, which can convert C3-C6 olefin into long-chain olefin, and belongs to the field of catalyst preparation. The catalyst is composed of a component A and a component B, the component A is one of metal elements Sn or Mg, the content of the component A is 0.1-10 wt% of the total amount of the catalyst, the component B is a molecular sieve carrier, and the content of the component B is 90-99.9 wt% of the total amount of the catalyst. The catalyst is prepared by adopting a vapor phase method, the olefin polymerization catalyst with high activity is prepared by controlling the variety and content of active components, the preparation process is simple, and the catalyst has the advantages of good activity, high selectivity and good stability when being applied to preparation of olefin through 1-hexene polymerization; and a new technical scheme is provided for development and preparation ...

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Номер записи: 1
07-05-2015 дата публикации

REGENERATED CELLULOSE FILM, FUNCTIONAL FILM AND PREPARATION METHOD THEREFOR

Номер: WO2015062348A1
Автор: ZHANG, Jun, ZHANG, Xiaoyu, YU, Jian, LI, Ruifeng, WU, Jin, GAO, Yugang, ZHANG, Jinming, QIU, Jinjiang
Принадлежит:

The present invention relates to a regenerated cellulose film, a functional film and preparation methods therefor. The method mainly comprises the following steps: (1) shaping cellulose/ionic liquid solution by die extruding, calendering or casting; (2) introducing the shaped solution into coagulation bath to form cellulose gel membrane; (3) stretching the cellulose gel membrane in transverse and longitudinal direction for at least one time during coagulating and washing; (4) further applying transverse and longitudinal tension to the stretched film during drying, and finally, obtaining a regenerated cellulose membrane after rolling. Organic and/or inorganic functional additives may be added to the cellulose/ionic liquid solution, and a functional regenerated cellulose membrane is obtained by the described method. The regenerated cellulose membrane and functional membrane obtained by the described method have a balanced, relatively high longitudinal and transverse tensile strength, and ...

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Номер записи: 2
27-07-2016 дата публикации

Instruct independent assortment formula night light antislip floor tile of route

Номер: CN0205399922U
Автор: MA JIANSUO, MA HAIDONG, ZHOU MIAOMIAO, YANG DEHUI, LIU YONGWEI, LI RUIFENG
Принадлежит:

... 本实用新型介绍种指示路线的自由组合式夜光防滑地砖，地砖的上表面上设有凹槽，凹槽整体围成正方形，包括四个圆凹槽和四条矩形凹槽，四个圆凹槽分别位于四个端点上，四条矩形凹槽作为正方形的四条边分别平行于方形地砖的各边；圆凹槽和矩形凹槽不连通；使用时依据需要在用来指示路线的圆凹槽和矩形凹槽内满粘夜光带。本实用新型使用时可按应急疏散路线灵活选择圆凹槽和矩形凹槽，在其内粘贴夜光带组合成箭头形式，指示路径方向或位置，指示信号明确连贯；若使用过程中指示路线发生改变，可在地砖铺设完毕后任意改变，重新粘贴夜光带，路径自由组合；凹槽有定的防滑功能，厚度小易清扫，耐久性好，不消耗能源，节能环保。 ...

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Номер записи: 3
07-01-2004 дата публикации

纳米沸石的制备方法

Номер: CN0001133585C
Автор: LI RUIFENG, YANG HUAIXIN, SONG FEN, RUIFENG LI, HUAIXIN YANG, FEN SONG, 李瑞丰
Принадлежит:

... 一种制备纳米NaY沸石的方法，该方法是在不加任何添加剂，常温配料，常规设备的情况下合成粒度30-70nm的NaY(SiO#-[2]/Al#-[2]O#-[3]＝3-5)沸石，并可通过简单控制、调节晶化条件和配料制得一系列粒度分布在30nm到250nm的不同颗粒大小、硅铝比相近的NaY沸石，且产品的结晶度及热稳定性好。 ...

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Номер записи: 4
21-07-2023 дата публикации

Control method for automobile lamp

Номер: CN116471725A
Автор: BAO SEN, LUO LU, LI BIAO, LI RUIFENG, WANG DEZHI, MA JIE
Принадлежит:

The invention discloses a control method for an automobile lamp. The control method comprises a power module, a low-voltage-to-high-voltage circuit and a central control module, and the power module is connected with the low-voltage-to-high-voltage circuit and the central control module; the low-voltage-to-high-voltage circuit is connected with a high-voltage pulse output circuit, and the high-voltage pulse output circuit is connected with a starting circuit and a high-voltage ignition circuit. The starting circuit is respectively connected with the central control module and the power supply module; the control circuit and the control method have high adaptability, on one hand, the requirement for vehicle lamps of different specifications can be met, on the other hand, the voltage requirement when the vehicle lamp is started can be met, and high applicability is achieved.

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Номер записи: 5
27-06-2023 дата публикации

Logging curve depth correction method and device based on activity and variance transformation

Номер: CN116335639A
Автор: FENG YU, PEI JIANYA, WANG QIAN, CAI BING, TONG ZHENGHUI, ZHANG DONGFANG, LI RUIFENG, BAO LEIGANG, ZHU XIAOMENG, GONG HUA
Принадлежит:

The invention relates to a logging curve depth correction method and device based on activity and variance transformation, and the method comprises the steps: obtaining a logging curve, and carrying out the sampling interval unification processing of the logging curve; calculating an activity curve of the natural gamma curve, and selecting a calibration well section on the activity curve; selecting a comparison well section on the pre-casing open hole well gamma curve; sliding the calibration well section at a first preset length on the comparison well section, and calculating the Euclidean distance of the overlapped part of the two well sections; selecting a minimum Euclidean distance in all Euclidean distances to obtain an optimal depth correction value of the curve; and performing depth correction on an isotopic tracing curve and a well temperature curve by using the reference magnetic positioning curve. The problems that during curve depth correction in the prior art, the peak position ...

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Номер записи: 6
07-04-2023 дата публикации

Reverse load type catalyst as well as preparation method and application thereof

Номер: CN115920901A
Автор: YAN XIAOLIANG, CAO MIN, WANG QIANQIAN, LI YUBIN, MAO YUJIAO, LI SHA, QIU LI, YU FENG, LI RUIFENG
Принадлежит:

The invention discloses a back-loading type catalyst which takes metal Ni as a carrier, and Al2O3 is loaded on part of the surface of the metal Ni carrier; the metal Ni and the Al2O3 are both granular, and the particle size of the metal Ni is larger than that of the Al2O3. The back-loading structure of the catalyst can prevent the surface of the metal Ni from being directly exposed in a CO2-rich dry reforming atmosphere to be oxidized and inactivated, and the stability is high; and the catalyst shows good methane dry reforming activity in a high-temperature CO2-rich atmosphere, and can catalyze a reaction to stably convert to obtain CO-rich synthesis gas. The invention also provides a preparation method and application of the load-shedding type catalyst.

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Номер записи: 7
04-02-2004 дата публикации

金属配合物分子筛复合材料的制备

Номер: CN0001136991C
Автор: LI RUIFENG, FAN BINBIN, FAN WEIBIN, RUIFENG LI, BINBIN FAN, WEIBIN FAN, 李瑞丰
Принадлежит:

... 金属配合物分子筛复合材料的制备属于物理化学的范畴。其特征在于以ML/MCM-41为原料，采用再晶化法，将金属配合物固定于分子筛基质中。该方法简单易行，可将具有不同表面性质的金属配合物有效地固定于分子筛基质中，是制备金属配合物/分子筛复合材料的一种十分有效及普遍适用方法，此外采用该法还可制备出具有高金属配合物负载量的分子筛复合材料。 ...

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Номер записи: 8
23-06-2023 дата публикации

Metal alloy catalyst as well as preparation method and application thereof

Номер: CN116273043A
Автор: YAN XIAOLIANG, LIU XIANGYANG, LI SHA, QIU LI, GUO XIAODONG, YU FENG, LI RUIFENG
Принадлежит:

The invention discloses a metal alloy catalyst, the molecular formula of the metal alloy catalyst is Ni/MOx-SDC/Al2O3, SDC/Al2O3 is used as a carrier, and MOx is an oxide of metal M; the morphology of the metal alloy catalyst is of a nanosheet layered structure. The metal alloy catalyst has good catalytic performance, the conversion rate of carbon dioxide is remarkably increased under the low-temperature condition, and the selectivity of the target product methane is almost 100%. The invention also provides a preparation method and application of the metal alloy catalyst.

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Номер записи: 9
11-04-2023 дата публикации

Preparation method of metal oxide loaded nano zeolite particle catalyst

Номер: CN115945210A
Автор: LI RUIFENG, WANG FEI, QI JIAYAO, MA JINGHONG, ZHENG JIAJUN, FAN BINBIN
Принадлежит:

The invention belongs to the technical field of zeolite molecular sieve catalyst preparation, and particularly relates to a preparation method of a metal oxide loaded nano zeolite particle catalyst, which comprises the following steps: treating industrial gamma-alumina balls with a quaternary ammonium base aqueous solution, mixing the treated industrial gamma-alumina balls with a zeolite precursor solution, and crystallizing under a hydrothermal condition to obtain the metal oxide loaded nano zeolite particle catalyst. Then a two-step roasting method is used to obtain the alumina-loaded nano zeolite particle material, the key problems of large zeolite dosage and poor dispersibility in the hydrocracking catalyst are solved, and finally the transition metal is combined with the alumina-loaded nano zeolite particle material to obtain the metal oxide-loaded nano zeolite particle catalyst. The nano zeolite particles prepared by the method regulate the surface acidity of aluminum oxide, and the ...

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Номер записи: 10