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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 33. Отображено 33.
18-08-2023 дата публикации

Tubular pile centrifugal machine

Номер: CN116604696A
Принадлежит:

The invention relates to the technical field of tubular pile machining, and discloses a tubular pile centrifugal machine which is mainly composed of a base, a mounting part, a rotating shaft, a barrel, a fixed protruding edge, a moving mechanism and a movable protruding edge. The mounting part is arranged on the upper side of the base, the rotating shaft is rotationally mounted in the mounting part, the barrel is arranged on the rotating shaft, and the moving mechanism is arranged on the rotating shaft; a fixed convex edge is arranged on the front side of the cylinder body, a moving mechanism is arranged in the cylinder body, a movable convex edge is arranged at the position, located on the rear side of the fixed convex edge, of the outer side of the cylinder body, the movable convex edge is connected with the moving mechanism, a mold is arranged on the upper side of the middle of the mounting pieces on the two sides, and an annular convex edge is arranged on the circumferential side of ...

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02-06-2023 дата публикации

Automatic focusing method of astronomical device

Номер: CN116203696A
Принадлежит:

The invention discloses an automatic focusing method of an astronomical device, which is characterized in that a set of telescope system is mounted on a two-dimensional direct-driven turntable, a focusing assembly is mounted at the rear end of a telescope, a mobile bracket of the focusing assembly is connected with a CCD (Charge Coupled Device) camera, and the focusing of the astronomical device is evaluated according to a calculation result of a fixed star focusing evaluation method. A focusing driver of the focusing assembly drives a movable support to move back and forth through a rotating shaft to achieve the automatic focusing function. According to the automatic focusing method, the problem that a traditional gradient evaluation method is difficult to evaluate fixed star imaging is solved by means of image variance, when an astronomical device is in severe defocus, the method can still effectively recognize the focusing direction, and the automatic focusing function for fixed star ...

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18-04-2023 дата публикации

Website file tamper-proofing method and system

Номер: CN115982782A
Принадлежит:

The invention discloses a website file tamper-proofing method, which comprises the following steps of: copying all website files to a backup folder of a website server, collecting characteristic value information of the website files and incremental backup and incremental update increased by website administrator operation, continuously generating backups and writing the backups into a database; reading the states of all files and folders in the website directory in real time, and comparing the states with the characteristic value information stored in the database; if the content is inconsistent with the information stored in the database, the network user cannot access the tampered network content, meanwhile, the content of the backup path folder is copied to the corresponding file position of the monitoring folder in a plain text safe copying mode, and website display is recovered after copying is completed. When the webpage is tampered, the backup file can be timely displayed to the ...

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18-04-2023 дата публикации

System and method for intelligently adjusting height of vehicle body

Номер: CN115972844A
Принадлежит:

The invention relates to a system and method for intelligently adjusting the height of a vehicle body, in particular to the technical field of vehicle control, and the system comprises a visual recognition module which is used for carrying out the visual recognition of a video image in a monitoring range, so as to recognize a target image; the distance detection module is used for detecting the minimum distance between the target and the vehicle body when the target image is recognized; the behavior judgment module is used for judging the behavior of the target according to the visual identification result and the minimum distance between the target and the vehicle body; the behavior analysis module is used for analyzing the target behavior in different modes according to the target behavior judgment result; the height decision-making module is used for making a decision on the vehicle body height according to the target behavior analysis result; the suspension control module is used for ...

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28-07-2023 дата публикации

Automatic cooling control system and automatic cooling control method for brake test

Номер: CN116499721A
Принадлежит:

The invention provides an automatic cooling control system and an automatic cooling control method for a brake test, the automatic cooling control system comprises an acquisition module, a cooling device and a control module, the acquisition module is used for acquiring temperature information of a brake plate and temperature information of a cooling medium; the cooling device comprises a cooling circulation unit and a heat dissipation circulation unit, the cooling circulation unit is used for cooling the brake plate, and the heat dissipation circulation unit is used for providing a cooling medium for the cooling circulation unit and conducting heat dissipation on the cooling medium when needed. The control module is used for controlling the cooling device according to the temperature information output by the acquisition module, the output end of the acquisition module is connected with the control module, the output end of the control module is connected with the cooling device, and the ...

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26-05-2023 дата публикации

Leveling base and automatic leveling method thereof

Номер: CN116164202A
Принадлежит:

The invention discloses a leveling base and an automatic leveling method thereof.The base is characterized in that a circular base plate is supported by three screws distributed according to a certain angle, a universal coupling is installed in the center of the circular base plate, and three lead screw stepping motors are installed on the periphery of the universal coupling according to a certain angle; two optoelectronic switches are arranged on the same side of each lead screw stepping motor from inside to outside, a wedge-shaped sliding block is arranged above each motor, the bottom end of each wedge-shaped sliding block is connected with the corresponding motor, the top end of each wedge-shaped sliding block is connected with the top cover plate, and the wedge-shaped sliding blocks are driven to move through front-back movement of the lead screw stepping motors. Therefore, the purpose of leveling the angular displacement of the top cover plate is achieved. According to the leveling ...

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11-07-2023 дата публикации

Phase state recognition device and method for supercritical carbon dioxide displacement mining of coal bed gas

Номер: CN116411896A
Принадлежит:

The invention discloses a phase state recognition device and method for supercritical carbon dioxide displacement exploitation of coalbed methane, and relates to the field of coalbed methane exploitation. The phase state recognition device comprises a high-temperature triaxial pressure chamber, a load loading system, a seepage loading system, a data acquisition system, a temperature control system and a high-resolution X-ray three-dimensional detection system. By the adoption of the phase state recognition device and method, different temperature and pressure stratum conditions acting on the coal seam test piece can be changed according to geostress and temperature conditions of coal seam gas occurrence, the phase state transformation process of supercritical carbon dioxide displacement mining coal seam gas under different stratum conditions is simulated, accurate fluid phase state recognition is achieved, and the accuracy of fluid phase state recognition is improved. The device and the ...

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28-07-2023 дата публикации

Polyvinyl chloride sealing strip material prepared from red mud and tire waste and preparation method thereof

Номер: CN116496590A
Принадлежит:

The invention provides a polyvinyl chloride sealing strip material prepared from red mud and tire waste. The polyvinyl chloride sealing strip material is prepared from the following raw materials in parts by mass: 100 parts of polyvinyl chloride resin, 1-3 parts of a heat stabilizer, 10-40 parts of red mud, 5-20 parts of tire waste, 5-15 parts of a plasticizer, 0-3 parts of a lubricant and 1-5 parts of a coupling agent. The red mud and the tire waste are used as a combined filler to fill and modify a PVC resin matrix, the red mud can serve as a rigid filler, a brown coloring agent, a heat stabilizer and an acid gas neutralizer, the waste tire waste can serve as a tough filler, and the heat stability, the mechanical property, the aging resistance and other properties of the matrix are improved through the synergistic effect of the red mud and the tire waste. The sealing strip prepared through the method is excellent in performance, the production cost is reduced, an effective way is provided ...

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28-07-2023 дата публикации

Electrical equipment multispectral state detection method

Номер: CN116503648A
Принадлежит:

The invention provides an electrical equipment multispectral state detection method, which comprises the following steps: acquiring wavelength images of various equipment faults, and preprocessing the wavelength images; constructing a hyperspectral data set based on the preprocessed wavelength image; based on the hyperspectral data set, utilizing a random forest algorithm to construct a classification model; and detecting the state of the electrical equipment based on the classification model. According to the invention, non-contact on-line rapid detection of the electrical equipment can be realized.

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07-04-2023 дата публикации

Automobile intelligent control system and method based on remote safe window descending

Номер: CN115929159A
Принадлежит:

The invention relates to an automobile intelligent control system and method based on remote safe window descending, in particular to the technical field of the Internet of Vehicles, and the system comprises an input module which is used for inputting user instructions including remote window ascending and remote window descending; the safety analysis module is used for carrying out safety analysis on the vehicle environment when the remote window descending instruction is input; the judgment module is used for judging whether a remote window descending instruction is executed or not according to the safety analysis result of the vehicle environment; the prompting module is used for carrying out risk prompting when the remote window falling instruction is refused to be executed; the transmission module is used for transmitting the remote window descending instruction to the vehicle-mounted computer when the remote window descending instruction is executed so as to control the vehicle window ...

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13-06-2023 дата публикации

In-vehicle pet mode control method, control system and vehicle thereof

Номер: CN116259045A
Принадлежит:

The invention discloses an in-vehicle pet mode control method and system and a vehicle thereof, and the method specifically comprises the steps: a vehicle end collects the image, video and audio information of an in-vehicle pet, and uploads the information to a cloud end; the cloud receives the image, video and audio information of the pet in the vehicle, performs data analysis and processing, identifies the identity of the pet, and performs pet emotion research and judgment according to the data analysis and processing result of the cloud, and performs personalized in-vehicle environment setting suitable for the pet. Based on cooperative work of the vehicle end and the cloud end, image information and audio and video information of a pet in the vehicle are collected and uploaded to the cloud end based on image recognition and audio and video recognition principles, the cloud end carries out data analysis and processing, and the identity of the pet can be recognized; personalized emotion ...

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11-08-2023 дата публикации

Battery pack dynamic test method and communication system

Номер: CN116577658A
Принадлежит:

The invention relates to the technical field of electrical testing, in particular to a battery pack dynamic testing method and a communication system, comprising a battery pack, a stabilized voltage supply, an external relay switch, an upper controller and an electronic device, the battery pack, the external relay switch and the electronic device are connected through a low-voltage connecting line, the upper controller is connected with the electronic equipment through a network cable, the battery pack and the electronic equipment are respectively connected with the voltage-stabilized power supply, the low-voltage connecting line can transmit a whole vehicle analog signal and turn on a switch of the external relay, the external relay controls a main positive relay and a main negative relay in the battery pack to be closed, and the upper controller communicates with the battery pack through the electronic equipment. And corresponding signals of the BMS in the battery pack can be read when ...

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04-08-2023 дата публикации

Vehicle view control method, system and device, electronic equipment and storage medium

Номер: CN116533912A
Принадлежит:

The invention discloses a vehicle visual field control method, a vehicle visual field control device, a vehicle visual field control system, electronic equipment, a storage medium and a vehicle. The method comprises the steps that whether a vehicle body suspension changes or not is detected, and vehicle body suspension change information is acquired; obtaining a view blind area corresponding to the sight of the driver according to the height change information of the vehicle body suspension; adjusting the spatial position of the seat according to the view blind area corresponding to the sight of the driver; in the process of adjusting the space position of the seat, the change of the view blind area is detected in real time until the view blind area is recovered to the range before the vehicle body suspension changes. According to the scheme, the relation between the range of the view blind area and the vehicle body height is pre-positioned, the seat is adjusted by keeping the view blind ...

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02-05-2023 дата публикации

Installation device for sealing ring and piston in narrow space

Номер: CN116038618A
Принадлежит:

The invention discloses a mounting device for a sealing ring and a piston in a narrow space. The mounting device comprises a sealing ring mounting device and a piston mounting device, the sealing ring installation device further comprises a rotating disc, a first rotating telescopic arm installed above the rotating disc, a telescopic rod installed below the rotating disc and a pair of supporting rods. The telescopic rod is vertically and movably arranged below the rotating disc; and the pair of supporting rods are vertically arranged below the rotating disc and are positioned on the two sides of the motion trail of the telescopic rod. The piston installation device further comprises a suction cup and a second rotary telescopic arm installed above the suction cup. Compared with the prior art, the device has the beneficial effects that the problem that a sealing ring and a piston are difficult to install in a narrow space can be effectively solved, full-automatic mechanical control is adopted ...

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09-06-2023 дата публикации

Machining method applied to blisk blade

Номер: CN116237567A
Принадлежит:

The invention provides a processing method applied to a blade of a blisk, which comprises the following steps: judging the blade rigidity of the blisk according to the blade extension length and the maximum thickness of a blade body of the blisk; determining the machining allowance of the blade according to the blade rigidity; the finish machining tool path is longitudinally layered, and the longitudinal layer number of the finish machining tool path is determined; longitudinally layering the rough machining tool path according to the longitudinal layer number of the finish machining tool path; setting the machining allowance of the finish machining tool path; determining the number of tool paths for rough machining before feeding of the finish machining tool paths according to the machining allowance of the blade and the rigidity of the blade; the cutting depth of each layer is set according to the blade rigidity, and the number of transverse layers of a tool path for rough machining is ...

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14-07-2023 дата публикации

Method for detecting pollution degree of composite insulator material based on infrared hyperspectral analysis

Номер: CN116429724A
Принадлежит:

The invention discloses a composite insulator material pollution degree detection method based on infrared hyperspectral analysis. The method comprises the following steps: acquiring a hyperspectral image; preprocessing the hyperspectral image based on a multiple scatter correction technology and a competitive adaptive weighting algorithm; and constructing a qualitative classification model based on a random forest algorithm, and detecting the pollution degree of the composite insulator based on the qualitative classification model and the hyperspectral image. According to the invention, non-contact on-line detection can be realized, and during on-site use, only hyperspectral images of characteristic wave bands can be acquired, judgment can be carried out by using a classification model, and color attachment is carried out on different pollution degrees, so that a worker can visually see the pollution degree of the insulator.

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18-07-2023 дата публикации

Auxiliary gastric lavage nursing equipment for emergency treatment

Номер: CN116440348A
Принадлежит:

The invention provides gastric lavage nursing auxiliary equipment for emergency treatment, and relates to the technical field of gastric lavage assistance for emergency treatment. The collecting box is of a vertical cuboid box-shaped structure, and a tray is vertically installed at the bottom of an inner cavity of the collecting box in a sliding mode. Locking and stopping blocks are inwards and fixedly installed at the lower positions of the middles of the edges of the left end and the right end of the front end of the collecting box correspondingly, and limiting adjusting frames are fixedly installed on the side walls of the front ends of the locking and stopping blocks; and a collecting barrel is placed on the tray. The sanitary environment of operation is improved, the efficiency is improved, only the collecting barrel needs to be placed, peculiar smell emission is effectively prevented, and the problems that the discharging pipe and the collecting barrel are in an open type placement ...

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25-04-2023 дата публикации

Method and system for predicting short-term atmospheric optical turbulence profile based on artificial intelligence

Номер: CN116009118A
Принадлежит:

The invention discloses a method and system for predicting short-term atmospheric optical turbulence based on artificial intelligence, and the method comprises the following steps: obtaining atmospheric meteorological parameters, directly obtaining the temperature and wind speed at the current moment according to the atmospheric meteorological parameters, and obtaining the wind speed shear and temperature gradient at the current moment through calculation; atmospheric optical turbulence at several moments in a short period in the future is predicted by using an artificial neural network prediction model according to input wind speed, temperature, wind speed shear and temperature gradient, and the artificial neural network prediction model carries out training and testing by using data samples actually measured by turbulent meteorological sounding; and outputting the future short-term atmospheric optical turbulence predicted by the artificial neural network prediction model according to ...

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30-05-2023 дата публикации

Vehicle seat adjusting method, vehicle seat adjusting system and vehicle

Номер: CN116176374A
Принадлежит:

The invention discloses a vehicle seat adjusting method, an adjusting system and a vehicle thereof. A vehicle end device collects face information and sign data when a passenger gets on a vehicle, and sends the face information and the sign data to a cloud server; the cloud server carries out corresponding seat adjustment calculation according to the face information and the physical sign data sent by the vehicle end equipment; and the cloud server sends a seat adjustment calculation result to a seat position controller at the vehicle end, and the seat position controller adjusts the seat in the vehicle according to the seat adjustment calculation result. The face information and the sign data when the passenger gets on the bus are collected through the bus end device, corresponding seat adjustment calculation is carried out according to the face information and the sign data sent by the bus end device through the cloud server, the seat in the bus is automatically adjusted through the seat ...

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01-08-2023 дата публикации

Preparation method of super-hydrophobic surface of insulator

Номер: CN116515338A
Принадлежит:

The invention discloses a preparation method of a super-hydrophobic surface of an insulator, and belongs to the technical field of material chemical preparation. The preparation method of the super-hydrophobic surface of the insulator comprises the following steps: I, carrying out hydroxylation treatment and silanization treatment on the surface of the insulator to obtain a surface-modified insulator; and II, uniformly mixing the modified F-SiO2 nanoparticles with an organic solvent, adding an epoxy resin adhesive, uniformly stirring and mixing, and spraying on the surface-modified insulator to obtain the insulator with the super-hydrophobic surface. The preparation method of the super-hydrophobic surface of the insulator has low requirements on equipment and process conditions, is suitable for large-scale preparation of the hydrophobic coating of the insulator, and overcomes the problems of high cost, low efficiency, long time consumption and the like in preparation of the super-hydrophobic ...

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23-06-2023 дата публикации

Fixed star light deflection calculation method based on all-day atmospheric mode

Номер: CN116295362A
Принадлежит:

The invention discloses a fixed star light deflection calculation method based on an all-day atmospheric mode, and relates to the technical field of atmospheric parameter measurement and starlight detection navigation, and the method comprises the following steps: obtaining an atmospheric parameter profile mode of a starlight transmission path; correcting an atmospheric parameter profile mode according to in-situ measurement data of atmospheric parameters observed at observation points in real time, and constructing a real-time atmospheric parameter profile; constructing an atmosphere model, wherein the atmosphere model comprises concentric spherical layering of different heights; according to the atmosphere model and the real-time atmosphere parameter profile, the atmosphere refractive index of each spherical layer is calculated; and on the basis of a starlight refraction deflection principle, according to an atmosphere model and the atmospheric refractive index of each spherical layer ...

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14-07-2023 дата публикации

Machining method for rotor blade of gas turbine

Номер: CN116423168A
Принадлежит:

The embodiment of the invention provides a machining method of a gas turbine rotor blade. The machining method comprises the following steps that the two ends of the rotor blade are smoothed; roughly and finely milling a tenon and a margin plate part of the rotor blade; roughly milling the blade profile of the rotor blade; and finely milling the blade profile of the rotor blade. A process route is optimized by integrating machining angles, the milling capacity of an extended blade root is improved by innovatively designing a forming cutter, and a milling program is optimized to eliminate a cutter connecting trace at the root extending position of a tenon, so that the quality of the milling surfaces of the tenon and a margin plate meets the requirements of a design drawing, and the machining efficiency is doubled; the size out-of-tolerance caused by secondary clamping can be eliminated through primary clamping, and the problems of surface quality of a triangular area caused by interference ...

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06-06-2023 дата публикации

Offshore wind turbine yaw brake pad and preparation method thereof

Номер: CN116218133A
Принадлежит:

The invention provides an offshore wind turbine yaw brake pad and a preparation method thereof, and belongs to the technical field of brake systems. The yaw brake pad for the offshore wind turbine comprises the following components in parts by weight: 10-18 parts of phenolic resin, 2-6 parts of friction powder, 15-25 parts of mineral fibers, 5-10 parts of cryolite powder, 3-6 parts of aramid fibers, 8-10 parts of glass fibers, 5-10 parts of precipitated barium sulphate, 3-8 parts of crystalline flake graphite, 7-12 parts of pre-oxidized fibers, 2-4 parts of rubber powder, 2-5 parts of molybdenum disulfide, 5-10 parts of tungsten disulfide and 1-3 parts of magnesium oxide. The dry friction coefficient of the brake pad ranges from 0.40 to 0.45, and the corrosion resistance level of the brake pad is RA <->/10VSB. The brake pad has the advantages of being resistant to corrosion and low in vibration, and noise, vibration and the like can be avoided in the using process.

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23-06-2023 дата публикации

Vehicle exterior scenery special effect display method and device based on vehicle window display

Номер: CN116279136A
Принадлежит:

The invention discloses a special effect display method and device for scenery outside a vehicle based on vehicle window display. The special effect display method for the scenery outside the vehicle based on vehicle window display comprises the following steps: acquiring information of the scenery outside the vehicle; obtaining a preset special effect database; obtaining special effect information according to the scene information outside the window and a preset special effect database; and the special effect information is transmitted to the projection device so as to be displayed on the window glass through the projection device. According to the method for displaying the special effect of the scenery outside the vehicle based on the vehicle window display, the information of the scenery outside the window is obtained, and finally the special effect of the image is combined in real time through a vehicle-mounted computer algorithm, so that when passengers observe the scenery outside ...

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16-05-2023 дата публикации

Navigation method based on photographic work position, electronic equipment and storage medium

Номер: CN116127208A
Принадлежит:

The invention discloses a navigation method based on a photographic work position, electronic equipment and a storage medium. The navigation method specifically comprises the following steps: acquiring position information and time information of a photographic work; classifying the photography works, and carrying out hot identification on photography sites; and according to the classification result of the photographic works, respectively calculating the hot shooting indexes and hot shooting time periods of the photographic works, and presenting corresponding navigation information during navigation search. According to the invention, the user can search the photographing points according to personal photographing interests and preferences, and can automatically match the photographing places with reachable distance and time for navigation recommendation according to the current vehicle position and search time; therefore, the user is helped to find the optimal photographing point (time ...

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27-08-2021 дата публикации

Elevated bridge drainage pipeline mounting trolley

Номер: CN214061287U

The utility model discloses a viaduct drainage pipeline installation trolley which comprises a bridge floor scaffold, the bridge floor scaffold is connected with a scaffold outside a bridge through a bearing connecting frame, walking wheels are installed at the bottom of the bridge floor scaffold, and a balance weight is placed on the lower portion of the bridge floor scaffold. The middle of the bridge floor scaffold is provided with in-beam pulleys used for abutting against the inner side face of an anti-collision guardrail on the edge of a viaduct. Scaffold boards are laid at the bottom of the scaffold outside the bridge to serve as a construction platform, the construction platform is located below the edge of the elevated bridge, a platform protection net is installed on the periphery of the construction platform, ladder steps are installed on the scaffold outside the bridge, and beam outside pulleys used for abutting against the outer side face of a pier of the elevated bridge are ...

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04-08-2023 дата публикации

Impurity filtering equipment for preparing concrete water reducing agent

Номер: CN116531845A
Принадлежит:

The invention relates to the technical field of water reducing agent filtering, and discloses concrete water reducing agent preparation impurity filtering equipment which is mainly composed of a water filtering barrel, a filtering plate I, a rotating shaft and the like, a sliding groove is formed in the position, located on the lower side of the filtering plate I, of the inner side wall of the filtering barrel, an annular groove is formed in the bottom face of the rotating shaft, and a connecting rod is movably connected to the interior of the annular groove through a ball. A magnetic block movably sleeves the outer surface of the connecting rod, a spring is fixedly connected to the middle of the bottom surface of the rotating shaft, a hard plate is fixedly connected to the bottom end of the spring, and a filter plate II fixedly sleeves the side wall of the hard plate. Through rotation of the rotating shaft, relative rotation is generated between the connecting rod in the annular groove ...

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23-06-2023 дата публикации

High-precision positioning method of astronomical device

Номер: CN116300042A
Принадлежит:

The invention discloses a high-precision positioning method of an astronomical device, which is characterized in that a telescope system is arranged on a two-dimensional direct-driven turntable, an automatic focusing seat is arranged at the rear end of a telescope, a CCD (Charge Coupled Device) camera is connected to the rear end of the automatic focusing seat, and an electronic compass is arranged above the CCD camera; the zero positions of the telescope in the horizontal direction and the north-pointing direction are preliminarily determined through the electronic compass, then the CCD camera is used for controlling the two-dimensional rotary table to conduct rotary scanning in a set area near a target fixed star, and after the target fixed star appears in a CCD view field, the relative high-precision positioning of the device at the position can be obtained through image processing and calculation. The device is high in automation degree, the whole process is completed through software ...

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09-05-2023 дата публикации

Method for preparing polyurethane pultrusion composite material

Номер: CN116096557A
Принадлежит:

The invention relates to a method and equipment for preparing a polyurethane pultrusion composite material by using a polyurethane pultrusion process, the polyurethane pultrusion composite material prepared by the method and application of the polyurethane pultrusion composite material.

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15-08-2023 дата публикации

Method for preparing iron tailing cemented filling body by replacing part of cement with biomass ash

Номер: CN116589247A
Принадлежит:

The invention discloses a method for preparing an iron tailing cemented filling body by replacing part of cement with biomass ash, and belongs to the field of metal mine filling, and the method comprises the following steps: determining raw materials for preparing a cemented filling material; preparing and maintaining an iron tailing cemented filling body sample; and determining the optimal biomass ash substitution rate of the iron tailing cemented filling body. According to the invention, the compressive strength of the iron tailing cemented filling body is researched, a renewable resource biomass ash with low cost and wide source is selected as an additive for improving the compressive strength of the filling body, and slump, bleeding rate and uniaxial compressive strength tests are carried out, so that an optimal ratio capable of remarkably improving the compressive strength of the filling body is finally obtained; the cement consumption is reduced, so that the filling cost can be obviously ...

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22-08-2023 дата публикации

Machining method for manufacturing blisk through laser additive

Номер: CN116618683A
Принадлежит:

The invention provides a machining method for manufacturing a blisk through laser additive, and belongs to the technical field of aero-engines. The machining method comprises the steps that reflective mark points are arranged on a blisk blank; based on the reflective mark points, scanning the blisk blank by using an optical scanning technology to obtain an optical scanning model; comparing the optical scanning model with a theoretical model of the blisk to obtain first margin distribution; fitting the first margin distribution to obtain uniform second margin distribution; determining the machining angle direction of the blisk blade; judging the rigidity of the blade, and determining a milling strategy; based on the second allowance distribution, the machining angle direction and the milling strategy, cutting simulation is conducted through an optical scanning model, and the blisk blank is milled; and detection and allowance compensation are carried out on the blisk blade obtained after ...

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01-08-2023 дата публикации

Aerated concrete block for purifying indoor air and preparation method thereof

Номер: CN116514516A
Принадлежит:

The invention provides an aerated concrete block for purifying indoor air and a preparation method thereof, and belongs to the technical field of wall materials, the aerated concrete block is prepared from the following raw materials by weight: 10-40 parts of titanium gypsum, 10-20 parts of Portland cement, 2-10 parts of aluminate cement, 10-20 parts of quicklime, 20-60 parts of fly ash, 1-2 parts of aluminum powder, 5-20 parts of quartz sand, 0.5-10 parts of coconut shell activated carbon, and 0.5-2 parts of a foam stabilizer. 0.2-2 parts of a water reducing agent, 40-45 parts of water and 5-10 parts of modified activated carbon. The prepared aerated concrete block for purifying indoor air has good mechanical properties, VOCs (volatile organic compounds) adsorption capacity and formaldehyde purification capacity, solid waste reduction and resource utilization can be realized, and environmental pollution caused by solid waste accumulation is relieved.

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02-06-2023 дата публикации

Page caching method, processing equipment and computer readable storage medium

Номер: CN116204398A
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The invention discloses a page caching method, processing equipment and a computer readable storage medium, and the method comprises the steps: responding to a situation that a page of at least one historical application is in a caching state, and receiving an opening instruction of the page of the application, the opening instruction comprising information of the page; acquiring information of the application according to the information of the page; in response to determining that the application is not loaded according to the information of the application, loading the application according to the information of the application and acquiring an instance of the application; the instance of the application is stored so as to be stored concurrently with the instance of the at least one historical application so as to be cached after the page is opened. According to the scheme, the instances of multiple different applications can be stored at the same time, so that different application ...

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