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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 13. Отображено 13.
05-02-2014 дата публикации

Method for preparing collagen microfiber by use of ionic liquid mixing solvent

Номер: CN103554247A
Принадлежит:

The invention discloses a method for preparing collagen microfiber based on an imidazole type ionic liquid/dimethyl sulfoxide system. The animal leather is used as a raw material, and an imidazole type ionic liquid/dimethyl sulfoxide mixture is used as a treatment agent. The method comprises the following steps of treating at 90-130 DEG C to obtain a suspension, performing high-speed centrifugation to obtain a precipitate, and cleaning the obtained precipitate and freeze-drying to obtain the collagen microfiber. The collagen microfiber can be applied to the fields such as textile, high-molecular materials and the like. The adopted reagent ionic liquid is non-volatile and can be recycled, and dimethyl sulfoxide is a low-toxicity solvent, therefore, the preparation method is environment-friendly and has a relatively good application prospect.

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23-06-2023 дата публикации

Underwater vehicle recovery device and use method

Номер: CN116280100A
Принадлежит:

The invention discloses a recovery device for an underwater vehicle. The recovery device comprises a holding claw group, a connecting rod, a tension spring and a lifting ring, each holding claw group adopts a shear type structure and is connected with the other holding claw group through a connecting rod which is arranged at a hinge point and serves as a rotating shaft; a locking device and a tension spring are arranged on the connecting rod, the holding claw is opened when the locking device is locked, and the tension spring drives the holding claw to hold tightly after the locking device is unlocked; and lifting rings are arranged on the holding claw groups. When the underwater vehicle is recovered, firstly, the connecting pin is mounted between the upper connecting rod and the lower connecting rod of the device, so that the embracing claw is unfolded and hung above the underwater vehicle, then the connecting pin is pulled out through the pull rope, under the action of the tension spring ...

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23-06-2023 дата публикации

Large-maneuver agile flight method of quad-rotor unmanned aerial vehicle in complex environment

Номер: CN116301026A
Принадлежит:

The invention discloses a large-maneuver agile flight method of a quad-rotor unmanned aerial vehicle in a complex environment. The maneuverability trajectory generation algorithm is designed based on the differential flatness property of the four-rotor unmanned aerial vehicle dynamics, the trajectory planning optimization function is constructed through the minium snap, and reliable following of the maneuverability trajectory is realized by using the composite cascade PID controller. The invention further provides a hardware structure of the quad-rotor unmanned aerial vehicle suitable for large-maneuvering agile flight, and the quad-rotor unmanned aerial vehicle has the advantages of light weight, compact design and good dynamic symmetry. According to the method, a machine learning method is not needed, real-time planning is realized only by depending on an airborne sensor and computing power resources, the problem that the quadrotor unmanned aerial vehicle realizes large-acceleration and ...

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09-09-2015 дата публикации

Striping machine is clear away to intelligent soda that spurts

Номер: CN0204626217U
Автор: HU YULIN, WANG AOBO
Принадлежит:

The utility model discloses a striping machine is clear away to intelligent soda that spurts, including main body cover and wheel, wherein the wheel is installed in the main body cover bottom, outer monitored control system is installed to main body cover top right hand edge, main body cover installs the division board in the bottom, division board enclose working space installs interior monitored control system, injector blower and suction nozzle in the region of its enclose bottom main body cover, control system, recovery system, communication system, injection system and driving system are installed to the main body cover inner chamber, the striping machine is clear away to intelligent soda that spurts installation 4G radio signal receiving ware, communication and exchange of data transmission speed are fast, the device can also control system 0, the automatic positioning will be rinsed the shower nozzle and aimed at the road surface and will rinse the position, whether the interior ...

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02-07-2014 дата публикации

Attitude control device and method for flying-wing-type underwater glider

Номер: CN103895846A
Принадлежит:

The invention provides an attitude control device and method for a flying-wing-type underwater glider. The device comprises a pump station cabin and four adjusting liquid cabins. The upper portion and the lower portion of each adjusting liquid cabin are provided with through holes. The four adjusting liquid cabins are arranged in a cross shape. The through holes of the upper ends of two opposite adjusting liquid cabins are communicated through a pipeline. The through hole in the lower end of each adjusting liquid cabin is connected with the pump station cabin through a pipeline. The pipeline through which the lower end of each adjusting liquid cabin is connected with the pump station cabin is provided with a solenoid valve, namely four solenoid valves are included. Liquid is used as media for gravity center adjusting, the parts are connected through pipelines, and the cabins can be flexibly arranged. Meanwhile, due to the continuity of liquid, adjusting control accuracy is high. In addition ...

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27-05-2015 дата публикации

Ship model maneuverability test device based on laser guide technology

Номер: CN104648613A
Принадлежит:

The invention provides a ship model maneuverability test device based on a laser guide technology. The device comprises an elevation stand, a laser guide platform, a ship model, two laser receivers and a data processing system, wherein the elevation stand is arranged above a water pool; the laser guide platform is arranged on the elevation stand; the two laser receivers are arranged at the head end and the tail end of the ship model; the data processing system is arranged inside the ship model; the laser guide platform comprises a bracket, three motors, two lasers and two steering engines; each laser receiver of the ship model comprises a laser sensor, a sensor mounting plate and a sensor base; the laser receivers are arranged at the head and tail of the ship; the data processing system comprises a master controller, a data acquisition unit connected with the master controller, and a storage device; and each laser receiver is connected with the master controller by virtue of an electric ...

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14-04-2023 дата публикации

Centralized multi-robot positioning method based on binocular vision

Номер: CN115965673A
Принадлежит:

The invention discloses a binocular vision-based centralized multi-robot positioning method, which is characterized in that a binocular image is used as basic input, and a binocular vision SLAM (Simultaneous Localization and Mapping) algorithm is used for completing centralized multi-robot positioning mapping. After receiving the binocular image, the client side calculates the pose of the client side in the tracking thread and the local mapping thread, and sends data to the server side through the communication thread at the same time. The server starts a fusion detection thread, the map between the clients is matched and fused in the thread, global optimization is performed after fusion is completed, and global consistent client poses are obtained. According to the invention, the problems of unfixed scale, poor robustness and poor tracking stability in a monocular centralized multi-machine SLAM framework are solved.

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12-02-2014 дата публикации

Weight regulating device used for gliding-type submersible vehicle

Номер: CN103569335A
Принадлежит:

The invention aims to provide a weight regulating device used for a gliding-type submersible vehicle. The weight regulating device comprises a communicating pipe, a water sealed shell, a leather bag, a stepping motor, a movable pressing block, a fixed pressing block and a lead screw, wherein the leather bag, the stepping motor, the movable pressing block, the fixed pressing block and the lead screw are installed in the water sealed shell, the stepping motor is connected with and drives the lead screw, the lead screw is matched with a nut and installed in the movable pressing block, the fixed pressing block is located above the movable pressing block and fixed to the inner wall of the water sealed shell, the leather bag is located between the movable pressing block and the fixed pressing block, the communicating pipe penetrates through the water sealed shell and makes the leather bag and the outside world communicated, the shape of the movable pressing block and the shape of the fixed pressing ...

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16-05-2023 дата публикации

Image style conversion method and device for underwater small sample

Номер: CN116128716A
Принадлежит:

The invention discloses an underwater small sample-oriented image style conversion method and device, and the method comprises the steps: obtaining an original target image and an underwater target image through the sampling of an optical camera, and obtaining an image suitable for subsequent processing through data preprocessing; inputting the preprocessed image into a pre-trained feature extraction network model, and extracting to obtain original target image features and underwater target image features; and the original target image features and the underwater target image features are sent to a generative adversarial model based on a graph model, style conversion is carried out, and a pseudo underwater optical image after style conversion is obtained. According to the image style conversion method for the underwater small samples, style conversion can be carried out on the target image, high-quality underwater pseudo samples are generated, and the problem that the underwater samples ...

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02-05-2023 дата публикации

Small quadrotor unmanned aerial vehicle autonomous navigation system and method in unknown dynamic environment

Номер: CN116048120A
Принадлежит:

The invention discloses a small quadrotor unmanned aerial vehicle autonomous navigation system and method in an unknown dynamic complex environment. According to the invention, an airborne depth camera sensor is completely utilized to sense the surrounding environment, detection and motion state estimation of dynamic obstacles in the environment are realized, obstacle avoidance of the dynamic and static obstacles in the environment is realized through an improved optimal mutual collision avoidance set (ORCA) algorithm, and a smooth and continuous motion track is generated by utilizing a B-spline curve to reach a target point. According to the invention, the autonomous navigation problem that the small quadrotor unmanned aerial vehicle arrives at the predetermined target point without collision in an unknown unstructured environment containing dynamic and static obstacles is solved.

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12-08-2015 дата публикации

Method for separating hemicellulose from lignocellulose biomass

Номер: CN104829754A
Принадлежит:

The invention discloses a method for separating hemicellulose from lignocellulose biomass. The method for separating the hemicellulose from the lignocellulose biomass comprises the following steps: (1) dissolving quaternary ammonium salt with water to obtain quaternary ammonium salt aqueous solution; (2) adding the quaternary ammonium salt aqueous solution and lignocellulose biomass into a reactor, and uniformly stirring, wherein the weight ratio of lignocellulose biomass to the quaternary ammonium salt aqueous solution is 1:(10-20), and treating for 1-24 hours at normal pressure and at the temperature of 60-100 DEG C; (3) carrying out solid-liquid separation, adding water into obtained liquid, diluting, and separating out hemicellulose; and (4) carrying out solid-liquid separation, cleaning, and drying the obtained solid, so that the hemicellulose is obtained. The method for separating the hemicellulose from the lignocellulose biomass has the advantages that hemicellulose is directly and ...

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03-09-2014 дата публикации

Electromagnetism speed reduction device and method

Номер: CN104018445A
Принадлежит:

An electromagnetism speed reduction device comprises a power supply unit, a detection unit and a control unit. The power supply unit comprises a system power source, a detection power source and a control power source, wherein the detection power source and the control power source are connected with the system power source in parallel. The detection unit comprises a detector electrically connected with the detection power source. The control unit comprises a speed reduction coil and a threshold value opening valve, and the speed reduction coil is buried below a pavement and reduces the speed of vehicles by generating an electromagnetic field when electrified. The threshold value opening valve is electrically connected with the speed reduction coil and the detector and used for judging parameters detected by the detector. The control unit and the detection unit are connected to the power supply unit in parallel in a paired mode. By generating the electromagnetic field, the electromagnetism ...

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23-06-2023 дата публикации

Vehicle-mounted noise source real-time positioning and visualization system based on distributed microphone array

Номер: CN116299175A
Принадлежит:

The invention discloses a vehicle-mounted noise source real-time positioning and visualization system based on a distributed microphone array, and the system comprises the following steps: 1), automatically generating three-dimensional curved surfaces inside and outside a vehicle body: based on collected RGBD data of the vehicle body and in the vehicle, generating a vehicle body curve model algorithm by referring to multi-view geometry, and combining with depth point cloud to obtain a three-dimensional curved surface of the vehicle body; and generating a G2 continuous three-dimensional curved surface model template by using curved surface generation, splicing and optimization algorithms, and further quickly generating a corresponding three-dimensional curved surface model for a new curve model by using a topological consistency rule. According to the invention, in-vehicle noise source identification is carried out by using a distributed microphone array; the noise source is visually displayed ...

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