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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 9. Отображено 9.
05-05-2023 дата публикации

Underground geological disaster monitoring device

Номер: CN116067411A
Принадлежит:

The invention discloses an underground geological disaster monitoring device. The device comprises a dustproof cover, a monitoring structure, a fixing disc and a fixing structure, and the dustproof cover is connected with the top of the monitoring structure; the outer wall of the monitoring structure is connected with the fixed disc; the fixing disc is connected with the fixing structure. According to the underground geological disaster monitoring device, the monitoring structure for monitoring in the underground geological disaster monitoring device can be well protected, and the underground geological disaster monitoring device is easy to disassemble and assemble.

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16-05-2023 дата публикации

Method and device for evaluating impact tendency of coal body and electronic equipment

Номер: CN116124616A
Принадлежит:

The invention provides a method and a device for evaluating the impact tendency of a coal body and electronic equipment. The method comprises the following steps: acquiring an impact energy index of the coal body and an elastic energy index of the coal body; acquiring an energy release proportion parameter of the coal body according to the impact energy index and the elastic energy index; acquiring an energy transfer proportion parameter of the coal body; acquiring an energy transfer index of the coal body according to the energy release proportion parameter and the energy transfer proportion parameter; and obtaining an evaluation result of the impact tendency of the coal body according to the energy transfer index. According to the method, the evaluation result of the impact tendency of the coal body is obtained according to the energy transfer index of the coal body, more physical and mechanical parameters of the coal body are considered when the evaluation result of the impact tendency ...

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07-07-2023 дата публикации

Multi-dimensional grid crack prefabrication pressure relief method based on thick and hard roof

Номер: CN116398135A
Принадлежит:

According to the multi-dimensional grid fracture prefabrication pressure relief method based on the thick and hard top plate, the transverse cutting-longitudinal explosion multi-dimensional grid fracture prefabrication pressure relief method is adopted, multi-layer full presplitting in the axial direction of a drill hole in the top plate can be achieved, and large-range extension of the radial fracture radius of the drill hole can be achieved; prefabricating of the multi-dimensional grid type cracks in the thick and hard top plate is completed, the thick and hard top plate is fully weakened, meanwhile, hydraulic fracturing drilling can achieve the fracturing effect and can also be used as top plate peeping drilling holes, hydraulic fracturing drilling can be carried out and then blasting is carried out when the requirement for further strengthening pressure relief is met, one hole has multiple purposes, the labor cost is reduced, and the working efficiency is improved. And rock burst disasters ...

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04-08-2023 дата публикации

Circulating water rainfall test system with adjustable rainfall intensity

Номер: CN116539227A
Принадлежит:

The invention discloses a circulating water rainfall test system with adjustable rainfall intensity, and relates to the technical field of rainfall tests. The system comprises a circulating water system, a sample holder turntable device and a frequency conversion control system, the circulating water system and the sample holder turntable device are accurately controlled through a frequency conversion control system, and the circulating water system is used for rainfall tests with different rainfall intensity requirements; the circulating water system comprises a circulating reservoir, a centrifugal water pump, a pressure gauge, a flow meter and a raining device which are connected through PVC (polyvinyl chloride) pipelines, and water sprayed by the raining device is collected and recycled through the circulating reservoir; the variable-frequency control system consists of a centrifugal water pump flow variable-frequency control unit and a sample holder turntable rotating speed variable-frequency ...

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09-05-2023 дата публикации

Rheological mechanical testing device and method for filling slurry containing large-particle gangue

Номер: CN116087034A
Принадлежит:

The invention discloses an experimental device for testing a rheological characteristic curve of paste filling slurry containing large-particle gangue and a measuring method. The device comprises a vertical experimental device support, a stirring power system servo torque integrated motor, a power system controller PLC, a high-precision dynamic torque sensor, a stirring rotor and blade, a power system coupler, a gangue-like paste filling slurry cylindrical container and a sensor data transmission connector. The torque sensor is connected with the motor, the stirring blade and the rotor through the coupler, the PLC is connected with the motor and the computer, and the torque sensor is connected with the computer. The rheological property of the filling slurry containing the large-particle gangue can be more accurately measured, and the device has the advantages that the rotating speed-torque change is continuously measured, data is automatically recorded, the automation degree is high, a ...

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23-06-2023 дата публикации

Three-dimensional stress monitoring device and method based on eddy current sensor

Номер: CN116295955A
Принадлежит:

According to the three-dimensional stress monitoring device and method based on the eddy current sensors, the six eddy current sensors in three groups are evenly distributed in the metal branch round pipe, the load stress of coal and rock masses in three different directions can be measured, and therefore the problem that traditional monitoring equipment can only measure the load stress of the coal and rock masses in the vertical direction is solved. The accuracy of data is improved, the measurement data is enriched, and the change of load stress in each direction of the coal rock mass can be better monitored; the integrated structural design of the sensor and the oil bag is adopted, and the sensor can directly measure the load stress of the coal and rock mass at the drilling hole in the corresponding position. Compared with a split type structure of traditional monitoring equipment, the influence on the sensor is smaller, the measurement error is smaller, and the measurement result is ...

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25-08-2023 дата публикации

Deep and shallow hole combined blasting presplitting method and device, electronic equipment and storage medium

Номер: CN116642385A
Принадлежит:

The invention provides a deep and shallow hole combined blasting presplitting method and device, electronic equipment and a storage medium. Comprising the steps that a first blasting sub-area and a second blasting sub-area corresponding to a to-be-blasted coal mining area and attribute information of blasting explosives are determined, the deep hole depth of blasting deep holes and the shallow hole depth of blasting shallow holes are determined, the connecting line direction of the blasting deep holes and the blasting shallow holes is the same as the roadway axial direction of a roadway, the deep hole depth is larger than the shallow hole depth, and the blasting depth is larger than the shallow hole depth; according to the attribute information, at least one blasting deep hole and a plurality of blasting shallow holes are formed in the first blasting subarea, at least two blasting shallow holes and a plurality of blasting deep holes are formed in the second blasting subarea, and blasting ...

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26-05-2023 дата публикации

Underground geological disaster early warning device

Номер: CN116164215A
Принадлежит:

The invention discloses an underground geological disaster early warning device. The device comprises a fixing structure, an anti-skid shell, a locking assembly and a sensing module, and the top of the fixing structure is connected with the bottom of the anti-skid shell; a locking assembly is arranged on the edge of the top of the protective shell. And a sensing module is mounted in the anti-skid shell. According to the technical scheme, it can be ensured that the underground geological disaster early warning device is stably installed at the preset position, the sensing module in the early warning device can be effectively protected, disassembly is easy, and follow-up maintenance is convenient.

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09-05-2023 дата публикации

Regional stress indication method and device based on manually-proportioned materials and electronic equipment

Номер: CN116086665A
Принадлежит:

The invention discloses a regional stress indication method and device based on an artificial proportioning material and electronic equipment, and the method comprises the following steps: controlling a stress detection device to carry out stress detection on a test body; wherein the test body is a simulation test body or a briquette coal rock model in which a plurality of stress indication granular materials with different manual proportions are mixed and buried at a measuring point; controlling a cutting device to cut the test body subjected to stress detection along the measuring point so as to form a cross section containing a plurality of stress indication granular materials with different manual proportions; and generating a regional stress nephogram according to the crushing condition of the granular material indicated by each stress in the section. Therefore, the method not only does not damage the integrity of the test body, but also can reduce the difficulty of obtaining the regional ...

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