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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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Форма поиска

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 18. Отображено 18.
31-12-2014 дата публикации

Low-complexity suboptimal incoherent multi-user detection in fast frequency hopping system

Номер: CN104253626A
Принадлежит:

The invention provides a low-complexity suboptimal incoherent multi-user detection in a fast frequency hopping system. According to low-complexity suboptimal incoherent multi-user detection technology in the fast frequency hopping system, the consistency of an expected user signal is used to put forward that an accompanying time frequency matrix is constructed on the basis of expected element selection, and error propagation caused by hard decision and soft restriction decision is lowered by fully receiving signal information to guarantee the detection performance of an algorithm. According to a characteristic that an expected user dehopping signal is provided with a maximum line on a time frequency matrix, the dehopping coding time sequence pattern of each user is predetected by a maximum line principle to reduce a search subspace for maximum likelihood detection and lower algorithm complexity. Reliable detection data can be subjected to remapping and frequency hopping address coding, ...

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28-01-2015 дата публикации

Synthesizing method of 3-(hydroxymethyl) tetrahydrofuran ester

Номер: CN104311514A
Принадлежит:

The invention discloses a synthesizing method of 3-(hydroxymethyl) tetrahydrofuran ester. The method comprises the following steps: performing esterification reaction on 3-tetrahydrofurfuryl methanol and sulfonyl chloride chlorinated products which are used as raw materials in an inert solvent under the condition of an inorganic base acid-binding agent in the presence of a phase transfer catalyst and an esterification catalyst, and dewatering in a warming backflow water diversion manner and/or a dewatering agent adding manner. According to the method, inorganic weak base replaces organic base-triethylamine, so that the bad influences of poison, foul smell, high irritation and high volatility of the triethylamine are avoided; in the esterification process, proper dewatering treatment, temperature control and the proper catalysts are adopted, so that the yield of products can be up to 85%, and the method is suitable for the large-scale industrialization production.

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23-06-2023 дата публикации

Belt mounting tool

Номер: CN116280899A
Принадлежит:

The invention discloses a belt mounting tool, and relates to the technical field of belt mounting tools, the belt mounting tool comprises a belt take-up roller, a guide assembly and a traction assembly, an elevator belt is arranged on the inner side of the belt take-up roller, a roller assembly is arranged at the outer end of the left side of the belt take-up roller, and a machine body assembly is arranged at the outer end of the left part of the roller assembly. Ratchet wheels are arranged at the outer ends of the first speed reduction roller and the second speed reduction roller, the first speed reduction roller and the second speed reduction roller can only rotate in the single direction through meshing of the ratchet wheels and ratchets, due to the fact that the overall height of the machine body shell is too high, when the elevator belt is installed from bottom to top, the elevator belt is extremely prone to slipping off from the inner side of the clamping base due to dead weight, ...

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22-08-2023 дата публикации

Tree structure node rapid selection method based on vue framework

Номер: CN116628272A
Принадлежит:

The invention discloses a tree structure node rapid selection method based on a vue framework, and belongs to the technical field of Web application system development, and the method comprises the following steps: adding select attributes in a component el-tree, obtaining encapsulated tree structure list data, and initializing the component el-tree; when any node is triggered, the list of the level is initialized according to the id of the father node of the node, and the node selected in the list of the level is screened out and packaged in the selected attribute; according to the optimized loadNode lazy loading method, sublevel nodes of the selected nodes are screened in a recursive mode, and the selected state of the front-end nodes is set according to the nodes stored in the selected by using a setChecked method of DOM elements. According to the method, the data of each hierarchy of the tree structure is dynamically obtained and displayed, the corresponding hierarchical relationship ...

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28-04-2023 дата публикации

Flower planting and cultivating device

Номер: CN116019003A
Принадлежит:

The invention provides a flower planting and cultivating device which comprises a lifting frame, the top end of the lifting frame is fixedly connected with a supporting seat, the top end of the supporting seat is fixedly connected with a pesticide spraying mechanism, a carrying mechanism is arranged in the lifting frame, one side of the bottom end of the lifting frame is fixedly connected with a cultivating mechanism, and the side of the lifting frame is fixedly connected with a placing shell. A plurality of grid layers are fixedly connected to the interior of the placement shell, a first electric telescopic rod is fixedly connected to the side, right opposite to each grid layer, of the placement shell, and a mounting plate is arranged at the top of each grid layer. According to the device, flower seedlings are sprayed and irrigated conveniently through the cultivation mechanism, a small motor rotates to drive a driving rotating roller to rotate, so that a rotating belt rotates to drive ...

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03-12-2014 дата публикации

Citronella cultivating method

Номер: CN104170636A
Автор: CHEN QINGLEI
Принадлежит:

The invention provides a citronella cultivating method. The specific scheme includes land selection, soil preparation, sowing, field management, low temperature management and harvesting. By means of the citronella cultivating method, the soil using efficiency can be increased, cold endurance of citronella can be improved, and the promotional value is extremely large in production.

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26-08-2015 дата публикации

Clean preparation method of pymetrozine

Номер: CN104860925A
Принадлежит:

The present invention discloses a clean preparation method of pymetrozine. The method is as below: subjecting raw materials of acetyl amino triazinone and acid to an acid hydrolysis reaction in a solvent to form aminotriazinone formate and menthyl acetate; after qualified reaction, carrying out an alkali neutralization reaction to obtain free state aminotriazinone; then conducting a condensation reaction on nicotinaldehyde solution and free aminotriazinone; and conducting cooling crystallization, filtration, washing purification, and drying to obtain a pymetrozine original drug. The invention recovers pymetrozine by cooling crystallization, greatly reduces plenty of fresh solvents and caustic materials required in the production of pymetrozine; and the byproducts can be comprehensively utilized and pymetrozine product is recycled, so as to improve the utilization rate of materials and by-products, reduce emission of waste water and exhaust gas, protect the environment, reduce production ...

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23-06-2023 дата публикации

Zone area electricity larceny prevention analysis method based on electricity utilization information acquisition

Номер: CN116307092A
Принадлежит:

The invention relates to a transformer area electricity larceny prevention analysis method based on electricity utilization information acquisition, which designs a correlation analysis algorithm, establishes a relation between an electricity larceny phenomenon and multi-dimensional electrical characteristic parameters, solves the classification and prediction of various electricity larceny events, and establishes an electricity larceny event model of the characteristic parameters based on electricity utilization information acquisition data to perform electricity larceny prevention analysis. And the missing report of electricity stealing events is reduced.

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05-11-2014 дата публикации

Blueberry preservation method

Номер: CN104126654A
Автор: CHEN QINGLEI
Принадлежит:

The present invention provides a highly efficient blueberry preservation method, and the specific scheme is as follows: the blueberry preservation method comprises the following steps: 1) a step of pretreatment: soaking picked fresh blueberries in a starch paste for 3-10 minutes and flushing the soaked blueberries with water; 2) a step of treatment: treating the pre-treated blueberries in a preservative solution for 0.6-6 seconds, taking out and drying the treated blueberries and then packing the blueberries in a pored gas-permeable plastic box; 3) a step of covering with plastic wrap: covering the plastic box for housing the blueberries in the step 2) with a plastic wrap; 4) refrigerating the blueberries in the plastic box covered with the plastic wrap in the step 3) at 2-10 DEG C. The refreshing time of the blueberries treated by the method is greatly prolonged, and stable flavor of the blueberries is guaranteed. The blueberry preservation method has features of low treatment cost, and ...

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18-07-2023 дата публикации

Method for testing and characterizing nanoscale passive film on surface of metal material

Номер: CN116448797A
Принадлежит:

The invention provides a method for testing and characterizing a nano-scale passive film on the surface of a metal material, and the method comprises the following steps: S1, fixing a sample of the passive film on the surface of the metal material on a sample stage of a double-beam microscope system, and depositing a first platinum protection layer by electron beams; s2, depositing a second platinum protection layer on the first platinum protection layer by adopting an ion beam; s3, grooving one side of the second platinum protection layer by adopting an ion beam to cut a cross section; s4, carrying out ion beam polishing on the cross section; and S5, testing and characterizing the passivation film by using electron beam imaging. According to the test characterization method for the nano-scale passivation film on the surface of the metal material, the film thickness of the nano-scale passivation film on the surface of the metal material can be visually observed, the test process is simple ...

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12-03-2014 дата публикации

Menu configuration method based on modular instrument

Номер: CN103631588A
Принадлежит:

The invention provides a menu configuration method based on a modular instrument. According to the method, a frequently-used simulation keyboard area, a frequently-used soft key menu area and a frequently-used instrument display area are packed into three mutually independent controls; a data structure of keys and menus of the simulation keyboard area and a data structure of keys and menus of the soft key menu area are stored in an .xml data configuration file in a tree-shaped structure, and a main program loads the data configuration file and enables corresponding menu names to be displayed in the simulation keyboard area and the soft key menu area; operation is performed on the keys and the menus of the simulation keyboard area and the keys and the menus of the soft key menu area, the ID of a current key is sent to the soft key menu area in a message mode, an analysis program in the soft key menu area performs data analysis according to the captured ID, and finally results of execution ...

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19-08-2015 дата публикации

Pymetrozine preparation method

Номер: CN104844574A
Принадлежит:

The invention discloses a pymetrozine preparation method. The method comprises that acetaminotriazone and an acid as raw materials undergo an acidolysis reaction to produce aminotriazone acid salt, the aminotriazone acid salt and a nicotinaldehyde solution undergo a condensation reaction to produce pymetrozine acid salt, after the reaction is qualified, the pymetrozine acid salt is subjected to alkali neutralization, and the product is treated to form a pymetrozine raw drug. The method utilizes a method of condensation and then neutralization to replace the existing method of neutralization and then condensation, produces stable aminotriazone acid salt, greatly reduces side reactions caused by free aminotriazone instability and decomposition, reduces impurities, improves pymetrozine product content from 95% to 97% or more, improves a product yield by about 2.0-5.0%, improves a raw material conversion rate, is environmentally friendly and can be industrialized easily.

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08-10-2014 дата публикации

Preparation method of longan preservative

Номер: CN104082405A
Автор: CHEN QINGLEI
Принадлежит:

The invention provides a preparation method of a longan preservative. The preparation method of the longan preservative comprises the following steps: crushing the following raw materials according to parts by weight in proportion until the particle size is less than 0.5mm: 20-100 parts of green tea, 10-20 parts of pepper and 20-70 parts of orange peel, extracting with 100-300 parts by weight of a solvent, firstly carrying out ultrasonic wave for 10-30 minutes in extraction, standing for 2-20 hours, filtering to obtain filtrate, then distilling the filtrate, removing the solvent, and adding 0.1-3 parts by weight of assistant and 50-200g of water so as to prepare the longan preservative. The preparation method of the longan preservative aims at prolonging the service life of longyan, improving the fruit eating safety, and lowering the production cost, and has great popularization value and social benefit.

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08-10-2014 дата публикации

Fruit fresh keeping agent and preparation method thereof

Номер: CN104082404A
Автор: CHEN QINGLEI
Принадлежит:

The invention discloses a fruit fresh keeping agent and a preparation method. The fruit fresh keeping agent is prepared from the following raw materials in parts by weight: 20-1000 parts of polygonum cuspidatum and 20-70 parts of fresh ginger. The preparation method comprises the following steps: crushing the 20-1000 parts of polygonum cuspidatum and 20-70 parts of fresh ginger into powder with the diameter of less than 0.1mm, adding a solvent, heating, extracting, filtering to remove filter residue, distilling an extracted solution, removing the solvent, and then adding an additive and water to prepare the water solution of the extract, thereby preparing the fruit fresh keeping agent. The fruit fresh keeping agent prepared by the invention is low in cost, has a good fresh keeping effect, and has extremely great popularization value.

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18-05-2011 дата публикации

Full-automatic Chinese medicament prescription system

Номер: CN0102058479A
Автор: Chen Qinglei
Принадлежит:

The invention discloses a full-automatic Chinese medicament prescription system, which is Chinese medicament equipment which can realize full-automatic Chinese medicinal native medicament prescription according to a Chinese medicament prescription. The system combines a mechanical design, a mathematic combinational algorithm and computer control technology and comprises a combined medicament box (1), a spiral feeding system (8), a drive track (2), a weighing system (3), a computer-singlechip control system (5 and 6), a packaging system (7) and necessary control circuits, wherein the weighing system and the computer-singlechip control system are the core of the overall system. The technical scheme of controlling by using the computer, containing medicaments by using the combined medicament box, feeding the medicaments by spiral propelling, weighing the medicaments by combination weighing, returning the medicaments by using a refluxing device, and packaging the medicaments by using the packaging ...

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14-04-2023 дата публикации

Cucumber powdery mildew stress related gene CsRab11A and application thereof

Номер: CN115960927A
Принадлежит:

The invention belongs to the technical field of molecular biology and genetic engineering, and relates to a cucumber powdery mildew stress related gene CsRab11A and application thereof. The sequence of a full-length coding region of the gene is shown in SEQ ID NO.1, and the coded amino acid sequence of the gene is shown in SEQ ID NO.2. The method comprises the following steps: cloning a full-length coding sequence of a CsRab11A gene by taking cucumber Xintai mirabilis as a test material, and inserting the full-length coding sequence into a plant overexpression vector pRI101; csRab11A gene 5'end specific fragments are cloned and inserted into a virus-induced gene silencing expression vector pTRV2, and cucumber cotyledons are instantaneously transformed through agrobacterium tumefaciens mediation. A transformation strain is subjected to powdery mildew inoculation identification, the negative regulation effect of the CsRab11A gene in the cucumber powdery mildew resisting process is proved, ...

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02-05-2023 дата публикации

Soil-loosening flower seedling planting guiding cuttage device

Номер: CN116034748A
Принадлежит:

The invention relates to the technical field of flower nursery stocks, in particular to a soil-loosening flower nursery stock planting guiding cuttage device. According to the technical scheme, the device comprises a nursery stock positioning mechanism, transverse positioning frames are arranged above and below the bottom of the nursery stock positioning mechanism, and vertical positioning frames are arranged on the two sides of the bottom of each transverse positioning frame. The seedling positioning mechanism is used in the flower seedling insertion process, flower seedling insertion planting work becomes efficient, simple and convenient, flower seedling position insertion intervals are accurate, flower seedling growth is facilitated, and flower seedling growth requirements are met; meanwhile, through cooperation of the transverse positioning frame and the vertical positioning frame, it is guaranteed that when planters conduct seedling and flower cuttage on the soft soil layer, the overall ...

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08-10-2008 дата публикации

Firearms recognizing management system

Номер: CN0101281620A
Принадлежит:

The invention belongs to the field of the information recognition and search technique, which is a gun recognition management system. The system is arranged with an information card on the gun located on the information reading handle to perform the gun information management. The system face includes a gun registration module, a gun logoff module, a gun information search module, a personnel registration module, a personnel logoff module, a personnel information search module, a fingerprint lending-returning module, an ID lending-returning module, a lending-returning module information search module. The invention has the advantages of being in favor of gun informatization, capable of matching the personnel and the gun, improving the aspect of noneffective management when taking exigent start.

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