Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 18. Отображено 18.
16-06-2023 дата публикации

Indoor baseband processing unit of 5G extended pico base station and control method

Номер: CN116264714A
Принадлежит:

The invention discloses an indoor baseband processing unit of a 5G extended pico base station and a control method. The indoor baseband processing unit comprises a main processor, a standby processor and a control module. The main processor keeps a working state when the indoor baseband processing unit runs; the control module is in communication connection with the main processor and the standby processor and used for obtaining the load state of the main processor and distributing tasks to the main processor when it is determined that the main processor is not fully loaded. When it is determined that the main processor is fully loaded, a starting instruction is sent to the standby processor; and the standby processor is used for ending the dormant state to enter the working state according to the received starting instruction. By adopting the structure, the energy consumption can be saved and the cost can be reduced on the basis of ensuring the task processing efficiency and the user service ...

Подробнее
04-08-2023 дата публикации

Solid cage for cylindrical roller bearing, machining method and milling cutter for machining

Номер: CN116538198A
Принадлежит:

The invention relates to a solid cage for a cylindrical roller bearing, a machining method and a milling cutter for machining, the solid cage for the cylindrical roller bearing comprises an integrally-arranged annular body, a plurality of square pockets are formed in the annular body, each square pocket comprises two radial side faces arranged oppositely and two axial side faces arranged oppositely, and the two radial side faces and the two axial side faces are arranged oppositely. Each axial side face is sequentially provided with a rolling face, a roller locking face and a guiding face from outside to inside, the structure is simple, safety and reliability are achieved, and the service life of the bearing can be prolonged. The machining method for the solid retainer for the thrust cylindrical roller bearing is high in machining precision, convenient to operate and high in machining efficiency. According to the milling cutter for machining the solid cage for the cylindrical roller bearing ...

Подробнее
06-06-2023 дата публикации

Multi-agent collaborative reinforcement learning method, terminal and storage medium

Номер: CN116226662A
Принадлежит:

The invention discloses a multi-agent collaborative reinforcement learning method, a terminal and a storage medium, and the method comprises the steps: obtaining an environment parameter, constructing a simulation environment, and determining a learner agent according to the environment parameter and the number of agents; constructing a corresponding number of worker agents according to the task demand, and constructing a corresponding number of actor agents according to the task demand; wherein each worker agent is used for interacting with a plurality of actor agents, and each actor agent interacts with an independent simulation environment; acquiring sample data, and training the learner agent according to the sample data to obtain trained model parameters; and regularly updating the trained model parameters into the shared memory through the learner intelligent agent, and regularly updating the parameters of the decision network from the shared memory through the worker intelligent ...

Подробнее
04-08-2023 дата публикации

Lithium supplement additive, positive electrode slurry and positive electrode of negative-electrode-free lithium metal battery

Номер: CN116544535A
Принадлежит:

The invention provides a lithium supplement additive of a negative-electrode-free lithium metal battery, positive electrode slurry and a positive electrode, and belongs to the field of negative-electrode-free lithium metal batteries. The lithium supplement additive comprises any one of lithium benzoate, lithium phenylacetate, lithium phenylpropionate, lithium phenylbutyrate, lithium phenyl isobutyrate, lithium o-hydroxybenzoate, lithium m-hydroxybenzoate, lithium p-hydroxybenzoate, lithium phthalate, lithium m-phthalate, lithium o-phenylenediacetate, lithium m-phenylenediacetate and lithium p-phenylenediacetate; therefore, the lithium supplement additive is adopted to supplement active lithium for the battery, and due to the addition of the lithium supplement additive, the generation of a large amount of LiF on the surfaces of the positive electrode and the negative electrode can be promoted in the battery circulation process, and the stability of a positive electrode CEI layer is improved ...

Подробнее
30-06-2023 дата публикации

Solid retainer of thrust angular contact ball bearing, machining method and milling cutter for machining

Номер: CN116357677A
Принадлежит:

The invention belongs to the technical field of bearing retainer machining, and particularly relates to a thrust angular contact ball bearing solid retainer, a machining method and a milling cutter for machining, the thrust angular contact ball bearing solid retainer comprises a retainer annular body, and a plurality of ball pockets for containing steel balls are evenly distributed in the circumferential side wall of the retainer annular body; an inclined guide ball loading opening is formed in the pocket opening of the ball pocket hole; and a ball locking table for locking the steel ball is arranged on one side, close to the pocket bottom, of the guide ball loading opening. According to the solid retainer of the thrust angular contact ball bearing, the ball locking tables are directly milled in the ball pocket holes of the retainer, the position and precision of the locking amount can be effectively controlled, self-locking of the ball pocket holes of the retainer is guaranteed, balls ...

Подробнее
28-09-2017 дата публикации

SEMICONDUCTOR EPITAXIAL WAFER AND MANUFACTURING METHOD THEREOF

Номер: WO2017161936A1
Принадлежит:

Disclosed are a semiconductor epitaxial wafer and a manufacturing method thereof. A first reflecting layer (20) is disposed between a sapphire substrate (10) and an epitaxial layer (30). When a laser is used to perform repeated irradiation of the lower surface of the substrate (10) to form irradiation points, the first reflecting layer (20) reflects the laser light that escapes and is radiated towards the upper surface of the substrate (10), thereby preventing heat damage of the epitaxial wafer during wafer slicing.

Подробнее
04-07-2023 дата публикации

IMU-assisted LiDAR dynamic point cloud elimination method

Номер: CN116385292A
Принадлежит:

The invention provides an IMU (Inertial Measurement Unit)-assisted LiDAR (Light Detection and Ranging) dynamic point cloud elimination method. The method comprises the following steps of: 1, acquiring LiDAR and IMU data, and carrying out time synchronization and coordinate system relative space conversion parameter calibration; 2, carrying out initial point cloud processing by using IMU information, and carrying out point cloud cluster segmentation through a ground point cloud extraction and point cloud clustering segmentation method; step 3, establishing a pairing relationship of inter-frame point cloud clusters, and calculating feature data of the paired point cloud clusters; 4, constructing a point cloud motion state multi-level fuzzy comprehensive evaluation model, and inputting paired point cloud cluster feature data to evaluate the motion state of the point cloud cluster; and 5, based on a model evaluation result, removing the dynamic point cloud cluster from the original point cloud ...

Подробнее
08-08-2023 дата публикации

Blind image super-resolution reconstruction method based on Bcubic down-sampling image space alignment

Номер: CN116563110A
Принадлежит:

The invention provides a blind image super-resolution reconstruction method based on Bicubic down-sampling image space alignment, and a provided super-resolution reconstruction network is composed of three sub-networks, namely a kernel estimation sub-network, a Bicubic down-sampling image space alignment sub-network and an image reconstruction sub-network. A traditional blind image super-resolution reconstruction network generally comprises two sub-networks: a kernel estimation sub-network and an image reconstruction sub-network. According to the method, the estimation of the blurring kernel is obtained through the kernel estimation sub-network, and then the information of the blurring kernel is directly input into the image reconstruction sub-network, so that the estimation error of the blurring kernel is directly transmitted to the image reconstruction process, and the quality of the reconstructed image is influenced. According to the method, the estimated kernel information is input ...

Подробнее
30-06-2023 дата публикации

Solid retainer of thrust cylindrical roller bearing, machining method and milling cutter for machining

Номер: CN116357678A
Принадлежит:

The invention relates to a thrust cylindrical roller bearing solid retainer which comprises an integrally-arranged annular body, a plurality of square pockets are formed in the annular body, each square pocket comprises two radial side faces arranged oppositely and two axial side faces arranged oppositely, a rolling face is arranged in the middle of each radial side face in the radial direction, and the rolling face is arranged in the middle of each axial side face in the radial direction. And a roller locking surface and a guide surface are respectively arranged on two sides of the rolling surface in sequence. The roller locking surfaces are arranged in the square pockets, so that rolling bodies can be prevented from falling out, and the guide surfaces are arranged in the square pockets, so that the rollers are convenient to mount. The machining method for the solid retainer of the thrust cylindrical roller bearing is high in machining precision, convenient to operate and high in machining ...

Подробнее
18-08-2023 дата публикации

Aircraft aluminum alloy thin frame and machining method thereof

Номер: CN116604287A
Принадлежит:

The invention relates to an aircraft aluminum alloy thin frame and a machining method thereof, the aircraft aluminum alloy thin frame comprises a frame body, and four fixing blocks used for being matched with a numerical control machine tool to prevent a clamp from damaging the frame body are arranged on the frame body. In order to prevent a product from being extruded by a cold machining pressing plate, a fixing block is reserved on a frame body in combination with a finished product size diagram of the product during blanking of the frame body, the product is roughed by fixedly clamping the fixing block and adopting a hard alloy cutter with two blades, the chip removal effect is improved, and the fixing block is removed by adopting wire cut electrical discharge machining after finish machining. According to the non-contact type discharge machining, macroscopic cutting force does not exist between a tool electrode and a workpiece, size errors caused by mechanical deformation are avoided ...

Подробнее
05-05-2023 дата публикации

Maleimide prepolymer resin composition

Номер: CN116063838A
Автор: ZHANG SHUHAO
Принадлежит:

The invention provides a resin composition containing maleimide prepolymerized resin and a product thereof. The resin composition containing the maleimide prepolymerized resin comprises the following components in parts by weight: 100 parts of vinyl-containing polyphenyl ether resin; 35 parts by weight to 45 parts by weight of bis (vinyl phenyl) ethane; and 30 parts by weight to 60 parts by weight of a maleimide prepolymer resin; wherein the maleimide prepolymer resin is a prepolymer obtained by carrying out a prepolymerization reaction on aromatic maleimide resin and long-chain maleimide resin. According to the product of the resin composition containing the maleimide prepolymer resin, at least one characteristic of glass transition temperature variation, copper foil tension, thermal expansion coefficient, thermal expansion coefficient and surface appearance can be improved.

Подробнее
29-06-2016 дата публикации

U type block device

Номер: CN0205355752U
Принадлежит:

... 本实用新型提供一种U型封网装置,包括多个U型网,每个U型网一样;上横担第一承托绳、上横担第二承托绳、网边第一承托绳、网边第二承托绳和中间承托绳均连接于相邻的两个输电塔之间;侧面第一编网绳的第一端连接上横担第一承托绳,侧面第一编网绳的第二端连接网边第一承托绳;侧面第二编网绳的第一端连接上横担第二承托绳,侧面第二编网绳的第二端连接网边第二承托绳;底面第一编网绳的第一端连接网边第一承托绳,底面第一编网绳的第二端连接中间承托绳,底面第二编网绳的第一端连接网边第二承托绳,底面第二编网绳的第二端连接中间承托绳。该U型网装置的两个侧面和底面均构成了网结构。可以保护输电线下方的重要设施不被输电线或牵引绳砸坏。 ...

Подробнее
30-06-2023 дата публикации

Solid retainer for thrust ball bearing, machining method and milling cutter for machining

Номер: CN116357676A
Принадлежит:

The invention belongs to the technical field of bearing retainer machining, and particularly relates to a solid retainer for a thrust ball bearing, a machining method, a milling cutter for machining and the solid retainer for the thrust ball bearing. The solid retainer for the thrust ball bearing comprises a retainer annular body, and ball pockets penetrating through the two end faces of the retainer annular body are distributed in the circumferential direction of the retainer annular body; one end of each ball pocket is provided with a pocket bottom matched with the corresponding spherical roller in a limiting mode, the other end of each ball pocket is provided with a pocket opening, and the pocket openings of every two adjacent ball pockets are close to different end faces of the annular body of the retainer respectively; an inclined guide ball loading opening is formed in the pocket opening of the ball pocket hole; and a convex ball locking table for locking the spherical roller is arranged ...

Подробнее
07-07-2023 дата публикации

Stamping retainer for tapered roller bearing, machining method and punch for machining

Номер: CN116398540A
Принадлежит:

The invention relates to a stamping retainer for a tapered roller bearing, a machining method and a punch for machining, the stamping retainer for the tapered roller bearing comprises an integrally arranged annular body, a plurality of pockets are formed in the annular body, each pocket comprises two radial side faces and two axial side faces, the two radial side faces and the two axial side faces are oppositely arranged, and the two radial side faces and the two axial side faces are oppositely arranged. And each axial side surface is sequentially provided with a locking roller surface and a rolling surface from outside to inside, so that the rotation precision of the bearing in the use process and the rotation dynamic balance precision of the bearing can be ensured. According to the machining method for the stamping retainer for the tapered roller bearing, the stretching process is omitted, and the long-standing problem that the machining precision of a pocket punched by the retainer is ...

Подробнее
28-07-2023 дата публикации

Vision-language combination-based named entity recognition method and device

Номер: CN116502642A
Принадлежит:

The invention provides a named entity recognition method and device based on vision-language combination, and the method comprises the steps: obtaining training corpus data, and carrying out the preprocessing; performing feature extraction on the preprocessed data, and associating a text with visual features; image and text codes are converted into high-dimensional vectors by using a cross-modal contrast learning algorithm, the high-dimensional vectors are mapped to a semantic space, a matching graph is generated, and multi-modal fusion features are obtained; and inputting the multi-modal fusion features and a preset probability transformation matrix into a conditional random field to obtain a named entity recognition result. According to the method, the language understanding capability is improved, and by using the deep learning technology and the cross-modal contrast learning algorithm, the model can better understand the language and associate the language with visual information.

Подробнее
27-08-2021 дата публикации

Novel heater

Номер: CN214065077U
Автор: ZHANG SHUHAO, 张书豪
Принадлежит: ZHANG SHUHAO, 张书豪

The utility model relates to a heater, in particular to a novel heater which comprises a heater body and a placing portion, the heater body is a common heater in the market, the placing portion is an L-shaped metal groove and is hinged to the side face of the heater body through a 90-degree rotating shaft, and the width of the bottom face of the placing portion is 10 cm. The height of the side face is the same as the thickness of the heater body, the length of the containing part is the same as that of the heater body, and the hinged position of the containing part is the position, 10 cm above the heater body, of the side face of the heater body, so that the containing part can be folded and buckled above the heater body through a rotating shaft. And the bottom surface of the placing part can be vertical to the side surface of the heater body after the placing part is turned over by utilizing a 90-degree rotating shaft. Small clothes or other articles needing to be dried can be placed on ...

Подробнее
28-07-2023 дата публикации

Flexible charging tray for fixing and clamping bars

Номер: CN116495322A
Принадлежит:

The invention relates to the field of charging tray clamping, in particular to a flexible charging tray for fixing and clamping bars, which comprises an upper charging tray, a lower charging tray and a U-shaped handle arranged on the upper charging tray through screws, a plurality of groups of grooves with composite patterns are formed in the upper charging tray and the lower charging tray, and the grooves are spliced in an intersected manner and used for fixing the bars. The special grooves are formed in the upper material disc and the lower material disc, the shapes of the grooves are formed by intersecting and splicing circles, squares and right triangles, after the upper material disc and the lower material disc are assembled, the upper material disc and the lower material disc are moved to move relatively, and the special grooves in the upper material disc and the special grooves in the lower material disc are combined to form a square groove and an arc special-shaped groove. The shape ...

Подробнее
21-07-2023 дата публикации

Tapered roller bearing solid cage, machining method and milling cutter for machining

Номер: CN116464712A
Принадлежит:

The invention belongs to the technical field of bearing retainer machining, and particularly relates to a solid retainer for a tapered roller bearing, a machining method and a milling cutter for machining, the solid retainer comprises a large end ring and a small end ring which are concentrically arranged, the large end ring and the small end ring are connected through a plurality of window beams, and the window beams are evenly distributed in the circumferential direction; every two adjacent window beams, the corresponding large end ring and the corresponding small end ring define a pocket for containing the corresponding tapered roller, an inclined guide face is arranged on the outer diameter of the side wall, forming the corresponding pocket, of each window beam, and a convex roller locking table used for locking the corresponding tapered roller is arranged on the side, away from the outer diameter of the corresponding window beam, of each guide face. The roller locking boss is directly ...

Подробнее