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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 8. Отображено 8.
23-05-2012 дата публикации

Method for overwintering species conservation propagation of myzus persicae

Номер: CN0102172231B
Принадлежит:

The invention provides a method for overwintering species conservation propagation of myzus persicae and belongs to the technical field of prevention and control of aphidius gifuensis. Aiming to solve the problem that the overwintering species conservation of the myzus persicae cannot be realized so that the huge demand for the aphidius gifuensis in the next tobacco planting season is difficultlymet in the prior art, the invention provides the method for the overwintering species conservation propagation of the myzus persicae, which comprises the following steps of: a, collecting the myzus persicae; b, inoculating the myzus persicae to tobacco seedlings; c, removing toxins from the myzus persicae; d, purifying and rejuvenating the myzus persicae; e, performing the overwintering species conservation of the myzus persicae; and f, enlarging the propagation of the myzus persicae. The method has the advantages of successfully realizing the large-scale propagation of the myzus persicae, ensuring ...

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06-08-2014 дата публикации

Purifying and recycling system of plantation irrigation water

Номер: CN103964637A
Принадлежит:

The invention relates to a purifying and recycling system of plantation irrigation water. The purifying and recycling system comprises a water collection system, a sedimentation tank, an anaerobic-aerobic reaction system, an artificial wetland purification system, a filtration system and a drip irrigation system. According to the invention, a water system of a planting region is designed to be the water system which flows and circulates by using an advanced concept of ecological and environmental protection, water saving irrigation and waste water recycling, and field runoffs generated by rainfall are collected and processed and then used, water of which impurities are naturally precipitated is recycled, anaerobic-aerobic reaction is carried out to decompose organic matters in water and an artificial wetland absorbs available nutrients, finally the impurities with different size fractions are filtered through a sand filter and a laminated membrane filer, so that the quality of purified ...

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12-02-2014 дата публикации

Preparation method of anti-canine parvovirus protein VP2 specific IgY

Номер: CN103570830A
Принадлежит:

The invention discloses a preparation method of an anti-canine parvovirus protein VP2 specific IgY, which comprises the following steps: (1) designing a pair of primers according to CPV-VP2 gene sequence, carrying out PCR (polymerase chain reaction) amplification on the CPV-VP2 gene, connecting to a pMD18-T vector, transforming DH5alpha competent cell, carrying out blue-white screening, extracting the plasmid, carrying out digest enzyme digestion ion analysis, carrying out positive plasmid sequencing, and carrying out comparative analysis on the sequencing result; (2) expression and purification of VP2 protein in Escherichia coli: carrying out BamH I and Xho I double-enzyme digestion on the pMD18-T-VP2 and pET-32a,connecting to the target segment, constructing the pET-32a-VP2 expression vector, transforming Bal21(DE3)pLysS competent bacteria, carrying out enzyme digestion and PCR identification, optimizing the IPTG (isopropyl-beta-D-thiogalactopyranoside) induction concentration and time ...

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04-04-2023 дата публикации

Biosynthesis method of diarylamine compound

Номер: CN115894269A
Автор: GUO YUANYANG, TIAN ZEHUA
Принадлежит:

The invention discloses a method for synthesizing diarylamine compounds through enzymatic cascade reaction, and belongs to the technical field of biosynthesis. An aniline compound is used as an amine source, and after amino is oxidized into nitroso through non-heme double iron ion type amino oxidase (AzoC-2), various types of aryl phenols can be aminated into diarylamine compounds. The diarylamine compound is efficiently synthesized through an enzyme catalysis cascade reaction between para aminobenzoic acid and aryl phenol, and the synthesis method has the advantages that raw materials are simple and easy to obtain, operation is easy and convenient, greenness and sustainability are achieved, and the substrate application range is wide.

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15-10-2014 дата публикации

Balanced-lighting stereoscopic seedling raising rack

Номер: CN104094831A
Принадлежит:

A balanced-lighting stereoscopic seedling raising rack is characterized in that tray tier-based transfer racks are disposed at two ends of a stereoscopic seedling raising rack of floating raising trays, tray floating troughs in multiple tiers are mounted on transverse braces of the stereoscopic seedling raising rack, a chain is mounted on sprockets, arranged at the inner upper and lower ends of a support of each tray tier-based transfer rack, in an enclosing manner, the middle of each transfer rack is fixed on a holder, sliders on each holder are fastened to a slide post of a support, a rope lock on the lower portion of each holder is fixed on the corresponding chain, a counting probe for counting the seedling raising trays is mounted at the front end of each transfer rack, a tray pushing cylinder is mounted at the rear end of each transfer rack, a tier positioning probe for the tray floating troughs is mounted at the rear end of each support, and an air pump and an electrical box are mounted ...

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06-08-2014 дата публикации

Three-dimensional biological control method for plant diseases and insect pests of tobacco planting

Номер: CN103960092A
Принадлежит:

The invention discloses a three-dimensional biological control method for plant diseases and insect pests of tobacco planting. The three-dimensional biological control method has the advantages that the technological methods of plant essential oil, natural enemy insect releasing, insect sex attractants, solar insecticidal lamps, champak board trapping and killing and the like are combined to achieve three-dimensional control over the pests in the tobacco planting process, and the control effect on tobacco black shanks, tobacco brown leaf spots and myzus persicae is excellent; organic chemical pesticides are not needed to be used for controlling the pests in tobaccos, using of chemicals is greatly reduced, influences of the chemicals on the quality of the tobaccos are reduced, and pollution to the environment is reduced.

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07-09-2011 дата публикации

Method for overwintering species conservation propagation of myzus persicae

Номер: CN0102172231A
Принадлежит:

The invention provides a method for overwintering species conservation propagation of myzus persicae and belongs to the technical field of prevention and control of aphidius gifuensis. Aiming to solve the problem that the overwintering species conservation of the myzus persicae cannot be realized so that the huge demand for the aphidius gifuensis in the next tobacco planting season is difficultly met in the prior art, the invention provides the method for the overwintering species conservation propagation of the myzus persicae, which comprises the following steps of: a, collecting the myzus persicae; b, inoculating the myzus persicae to tobacco seedlings; c, removing toxins from the myzus persicae; d, purifying and rejuvenating the myzus persicae; e, performing the overwintering species conservation of the myzus persicae; and f, enlarging the propagation of the myzus persicae. The method has the advantages of successfully realizing the large-scale propagation of the myzus persicae, ensuring ...

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16-09-2015 дата публикации

Tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and processing method thereof

Номер: CN104910920A
Принадлежит:

The invention relates to a tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and a processing method thereof. The chitosan thin film layer of the conditioner is wrapped outside a core layer, and the wrapping thickness of the chitosan thin film layer is 0.6-0.8mm; and the core layer is mainly composed of tobacco stem charcoal, calcium nitrate, magnesium nitrate, zinc oxide, borax and phosphate dissolving bacteria. The processing method of the conditioner mainly comprises the following steps: preparing tobacco stem charcoal from waste tobacco stems; crushing the tobacco stem charcoal; uniformly mixing all components of the core layer; sprinkling the phosphate dissolving bacteria; sprinkling a binder, and granulating; and dressing by using chitosan. In the invention, the tobacco stem charcoal has extremely strong water absorption and water retention abilities, an extremely high specific surface area and a loose physical structure, can effectively improve the content of ...

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