半球调节球体（W球型）

Double-folding hydraulic fly boom structure

A double-folding hydraulic fly boom structure relates to the technical field of hoisting cranes and is characterized in that a connecting piece is mounted in a connecting frame, a fly boom is mounted on the connecting piece, a positioning mechanism is mounted on one side of a fixed end of a main boom, and the position of the positioning mechanism corresponds to that of a clamping end of the fly boom; the position of the central axis of the connecting piece coincides with the position of the central axis of the main arm, and connecting plates are fixedly connected to the two sides of a connecting piece body respectively. According to the double-folding hydraulic fly boom structure, the fly boom can be folded laterally and folded downwards, the folding mode of the fly boom can be selected according to the actual situation, the fly boom is folded downwards, the overall space size of a machine is reduced, the double-folding hydraulic fly boom structure is suitable for being transiently transferred ...

High-real-time data structure

The invention discloses a high-real-time data structure, which comprises a hash table, and is characterized in that the hash table is firstly accessed when data is read every time, if the data is not read from the hash table, the data is read from a B tree, and the read data is stored in the hash table when the data is read from the B tree every time; the B tree is used for storing data with low access frequency; the first counter is used for recording the key value of each key value pair in the hash table and the reading frequency corresponding to each key value pair; the second counter is used for recording a key value of a key value pair for reading data from the B tree recently and a reading frequency corresponding to the key value pair; and the comparator is used for comparing the reading frequencies, corresponding to the key value pairs in the first counter, in the second counter, and if the reading frequency of the second counter is greater than the reading frequency of the first ...

Tubular object deformation detection device

The invention discloses a tubular object deformation detection device, which comprises an indicating rod, a micrometer and an auxiliary device, and is characterized in that the auxiliary device is used for heating and/or pressurizing a tubular object so as to simulate an actual working condition to deform the tubular object; one end of the indicating rod is fixedly arranged on the outer wall of the tubular object, the micrometer is arranged at the other end of the indicating rod, a probe of the micrometer is in contact with the indicating rod, the indicating rod deflects when the tubular object deforms, and according to the reading displayed by the micrometer when the indicating rod is in contact with the probe of the micrometer when the indicating rod deflects, the indicating rod is in contact with the probe of the micrometer. And measuring to obtain the deformation of the tubular object. According to the invention, tubular object deformation detection under severe working conditions such ...

Island DC micro-grid control system and cooperative control method thereof

The invention discloses an islanding direct current micro-grid control system and a cooperative control method thereof, the islanding direct current micro-grid control system comprises a central unit and a subunit, and the central unit is used for centralized control of mechanisms in the subunit; each subunit comprises two photovoltaic generator sets used for supplying energy loads to the micro-grid, two energy storage batteries used for storing first standby capacity of the direct-current micro-grid, a micro gas turbine used for storing second standby capacity of the direct-current micro-grid, and a comprehensive load used for detecting load voltage and adjusting load current. The central unit can communicate with the subunits, and the mechanisms of the subunits can communicate with each other. Consensus and coordination among the units are ensured, and the voltage stability of the isolated island DC micro-grid is effectively improved. Meanwhile, photovoltaic power generation is utilized ...

Equipment removes and lifts maintenance device

... 本实用新型涉及一种设备移动举升维修装置。其技术方案是：包括移动桌面、支撑腿、伸缩支架、带刹车的四氟轮、滑轨、上部框架、第一横梁、第二横梁，所述的上部框架上设有移动桌面，上部框架的下面安装有六个支撑腿，其中，左侧的两个支撑腿之间设有第一横梁，中部的两个支撑腿之间设有第二横梁，每个支撑腿的下端通过伸缩支架连接有带刹车的四氟轮；上述的上部框架顶部设有滑轨，移动桌面可以沿滑轨移动。有益效果是：设有升降功能能够辅助工作人员快速拆解分离需要维修的部件，大大降低了操作人员的劳动强度，提高了工作效率，并安装有带刹车的四氟轮，方便运输需要维修的部件到达维修点，节约了人力资源。 ...

PURIFICATION OF RECOMBINANT EV71 VIRUS-LIKE PARTICLE AND METHOD FOR PREPARING VACCINE THEREOF

The present invention provides a method for purifying an EV71 virus-like particle and a method for preparing a vaccine thereof. The virus-like particle is obtained by performing high cell-density fermentation cultivation on recombinantly expressed engineered bacteria; inducing EV71 virus-like particle protein expression using methanol; collecting the bacteria by centrifugation and performing high-pressure homogenization for disruption; precipitating the supernatant with ammonium sulfate; and purifying by redissolution, ultrafiltration, ion exchange chromatography, size-exclusion chromatography, hydroxyapatite chromatography, etc.

Financial transaction clearing method and device

The invention discloses a financial management transaction settlement method and device, the method is executed by a third party settlement server, and the method comprises the steps: obtaining a transaction application file of a financial management consignment mechanism, and obtaining a transaction confirmation file of a financial management product mechanism having a transaction relationship with the financial management consignment mechanism; clearing according to the transaction application file of the financing consignment mechanism and the transaction confirmation file of the financing product mechanism to obtain a third-party reconciliation file; comparing the third-party reconciliation file with a reconciliation file of a financial product institution; and submitting a financing transaction liquidation execution application to the unified payment system according to the comparison result, so that the unified payment system executes financing transaction liquidation. The financial ...

Polishing device for large main beam

The invention provides a grinding device for a large main beam, and relates to the technical field of grinding. The tool table is arranged on the bottom plate in the X direction; the multiple supporting mechanisms are arranged on the tool table in the X direction, and the multiple supporting mechanisms are used for supporting the main beam; the driving mechanism is arranged on the tool table, and the driving end of the driving mechanism can drive the main beam to rotate; the first linear module is arranged on the bottom plate in the X direction and located on one side of the tool table; the second linear module is arranged on the sliding table of the first linear module in the Y direction; the third linear module is arranged on the sliding table of the second linear module in the Z direction; and the grinding mechanism is connected to a sliding table of the third linear module, five-degree-of-freedom grinding operation of the main beam can be achieved, and the grinding mechanism can conduct ...

Hydraulic retarder and vehicle

The invention relates to the technical field of automobiles, and discloses a hydraulic retarder which comprises a retarder shell, and a retarder cover is arranged outside the retarder shell. The working cavity is located in the retarder and connected with the retarder cover; the stator is fixed to the retarder cover through a bolt and located in the working cavity, and a bearing seat is installed on the stator; the rotor is connected with the retarder cover and is positioned in the working cavity; the input shaft is arranged on one side of the working cavity and is connected with the rotor; the flange shaft is axially arranged in the retarder shell in a penetrating manner; an outer ring of the bearing is connected with the bearing seat, an inner ring of the bearing is mounted on the shaft diameter ring, and the shaft diameter ring is axially positioned through the flange shaft; one end of the separating spring is connected with the rotor, and the other end of the separating spring is connected ...

High-definition 4k video image attribute comparison method and device, terminal and storage medium

The invention provides a high-definition 4k video image attribute comparison method and device, a terminal and a storage medium. The high-definition and 4k video image attribute comparison method comprises the following steps: decoding a high-definition video and a 4k video with the same content to obtain first frame-by-frame data of the high-definition video and second frame-by-frame data of the 4k video; processing the first frame-by-frame data to obtain a first video quality evaluation parameter, and processing the second frame-by-frame data to obtain a second video quality evaluation parameter; comparing the first video quality evaluation parameter with the second video quality evaluation parameter frame by frame to obtain video source overall attribute difference information; and outputting and displaying the overall attribute difference information of the video source in real time. By decoding the high-definition video and the 4k video, comparing to obtain the overall attribute difference ...

Conductive structure and printing leveling method and equipment for low-temperature conductive paste

The invention discloses a conductive structure and a printing leveling method and equipment for low-temperature conductive slurry, and relates to the technical field of electronic circuit additive manufacturing. The printing leveling method of the low-temperature conductive paste comprises the steps that after a printing structure is formed on the surface of a printing substrate through the conductive paste, the printing structure is subjected to primary curing treatment, the volatilization amount of volatile matter in the printing structure reaches 10%-80%, and a prefabricated structure is obtained; and the prefabricated structure is subjected to pressing treatment, so that the prefabricated structure is continuously subjected to external pressure to extrude the beam shape in the process, and a flat and optimized structure is obtained. After the conductive slurry is applied to form the printed structure, the printed structure is subjected to primary curing treatment and pressing treatment ...

Controllable heat dissipation device suitable for near space unmanned aerial vehicle energy storage battery pack

The invention provides a controllable heat dissipation device suitable for an energy storage battery pack of a near space unmanned aerial vehicle, and relates to the technical field of battery pack heat control, and the device comprises an air duct which is arranged below the energy storage battery pack of the near space unmanned aerial vehicle, and a gap is formed between the energy storage battery pack and a skin of the near space unmanned aerial vehicle below the energy storage battery pack; first baffles are arranged on the two sides of the gap, and an air duct is defined by the two first baffles, the skin and the lower side face of the energy storage battery pack; the air inlet is formed in the skin and located in the windward end of the air duct; the air door cover plate is movably arranged on the upper side of the air inlet, an opening and closing driving mechanism is connected to the air door cover plate, and the opening and closing driving mechanism can drive the air door cover ...

Locomotive operation information management and control display system

The invention provides a locomotive operation information management and control display system. The system comprises an analog quantity processing unit, an information display and storage unit, a communication unit and a digital quantity processing unit which are all connected with an information processing unit. The analog quantity processing unit is used for collecting locomotive original operation information of each section of locomotive through the information unit, converting the locomotive original operation information into actual instrument information through the information processing unit, and displaying the actual instrument information on the information display and storage unit; and the digital quantity processing unit is used for acquiring component state quantity information output by a logic control unit of the locomotive through the information unit, converting the component state quantity information into locomotive operation information through the information processing ...

Millimeter wave array based on radar chip, millimeter wave imaging equipment and security check system

The invention discloses a millimeter wave array based on a radar chip, millimeter wave imaging equipment and a security check system. The millimeter wave array comprises a feed power division network, the radar chip, a transmitting antenna array, a receiving antenna array and a wave control system, the input port of the feed power division network is connected with a local oscillator signal, and the output port is connected with the radar chip, and is used for distributing the local oscillator signal to the radar chip according to the array scale. The radar chip is connected with the transmitting antenna array and the receiving antenna array, and is used for converting a local oscillator signal into a millimeter wave frequency, so that the local oscillator signal is transmitted through the transmitting antenna array, and frequency conversion and acquisition are carried out on an echo signal received by the receiving antenna array; and the wave control system is connected with the radar ...

Assemble tool equipment in advance

... 本实用新型涉及一种预组装工装装置，包括：主架体，在所述主架体中部安装有组装台面；所述组装台面包括底板，在所述底板两面均设有主饰板位置、扶手板位置、上饰板位置；所述底板两端安装有轴承A与轴承B，所述轴承A与所述轴承B上套有连接组件；所述轴承A与所述轴承B的一端均安装有转动电机。本实用新型的有益效果为：通过在底板两侧安装主饰板位置、扶手板位置、上饰板位置，将车门放置上面操作便捷，通过转动电机带动底板进行180°翻转，提高加工速度，其结构简单、使用方便快捷等诸多优点。 ...

INJECTABLE TISSUE ENGINEERED CARTILAGE IN VITRO CONSTRUCTION APPARATUS

An injectable tissue engineered cartilage in vitro construction apparatus comprising an incubator (1), a centrifuge apparatus arranged within the incubator (1), and a control system used for controlling the temperature in the incubator (1) and an action of the centrifuge apparatus. The centrifuge apparatus comprises a centrifuge, a container base (2) mounted on the centrifuge, a dosing system used for adding a preparation of reagents, and a stirring system used for stirring the reagents. By means of a controller (17) and a pH sensor (16) that are provided, a measured pH value is transmitted in real-time by the pH sensor (16) to the controller (17), then an action of a driving mechanism is controlled by the controller (17) via control module II (21), a piston rod is thus driven into action, a NaOH solution is added into a container groove (6), and, when the pH value of the solution falls within a set range, the driving mechanism is stopped, thus allowing for precise control of the pH value ...

Cement paste cast-in-situ bored hole and slurry anti-seepage construction method for abandoned coal mine well

The invention discloses an abandoned coal mine well drilling grouting cement paste and slurry anti-seepage construction method which comprises the following steps: drilling downwards from a well mouth to the depth of a quaternary system bottom plate, drilling and grouting cement paste at a position 4-5m below the quaternary system bottom plate, and drilling and grouting slurry at a position 1-4m below the quaternary system bottom plate; continuously drilling downwards to 1/2 of the well depth, drilling and pouring cement paste at the position 0-1 m above the 1/2 of the well depth, and drilling and pouring the cement paste at the position 1/2 to 1-4 m above the well depth; continuously drilling downwards to the depth of the well bottom, drilling and pouring cement paste at the position 0-1 m above the well bottom, and drilling and pouring mud at the position 1-4 m above the well bottom; in the steps, an underground television hole is formed during downward drilling every time, the interior ...

SOCKET WITH CLAMP

A socket with a clamp comprises a socket shell (1) and a clamp (2). The clamp (2) comprises a first clamping part (21), a second clamping part (22), and a torsional spring. The first clamping part (21) is fixed to the shell (1) or the first clamping part (21) and the shell (1) are integrally formed, the second clamping part (22) is rotatably connected to the shell (1), and the torsional spring enables one end of the first clamping part (21) to cling to one end of the second clamping part (22). The socket shell (1) can be conveniently clamped to a plate or a pole by using the clamp (2), thereby meeting requirements in various construction scenarios.

Conductive structure with improved flatness and manufacturing method thereof

The invention discloses a conductive structure with improved flatness and a manufacturing method thereof, and relates to the technical field of electronic circuit additive manufacturing. The manufacturing method of the conductive structure with improved flatness comprises the following steps: step 1, providing a base material; step 2, forming a printing conductive layer on the surface of the base material by using conductive slurry, and sequentially forming at least one metal coating on the printing conductive layer to obtain a multi-layer conductive structure; wherein at least one of the printing conductive layer and/or the metal plating layer is subjected to flattening treatment, so that the multi-layer conductive structure with improved flatness is obtained. According to the invention, any layer in the printed conductive layer and/or the metal coating is subjected to leveling treatment, so that the multi-layer conductive structure with improved leveling is obtained, the problem that ...

Sheet metal part stamping, cutting and arranging conveyor

The invention provides a stamping, cutting and arranging conveyor for sheet metal parts, and mainly relates to the field of arranging and conveying. A stamping, cutting and arranging conveyor for sheet metal parts comprises a stamping machine, at least one laser cutting mechanical arm is arranged on the rear side of the stamping machine, a stamping lower die is arranged in the middle of the stamping machine, a feeding synchronous belt mechanism is arranged on the rear side of the stamping machine, and a turnover mechanism is arranged on the downstream portion of the stamping lower die and comprises a fixing frame. A mounting frame is arranged on the downstream of the turnover mechanism, a bearing frame is slidably arranged on the mounting frame, a linear feeding mechanism used for driving the bearing frame to slide is arranged on the mounting frame, a front sliding frame is slidably arranged on the front bearing sliding rail, a rear sliding seat is slidably arranged on the rear bearing ...

Input/output interface support and electronic equipment

The invention provides an input and output interface support and electronic equipment, the input and output interface support comprises a body part, a plurality of protruding parts and a heat dissipation part, the body part is connected with a mainboard, the plurality of protruding parts are arranged in a protruding mode relative to the body part, each protruding part comprises a first protruding rib, a second protruding rib and a limiting blocking rib, and the first protruding rib and the second protruding rib are oppositely arranged; the limiting blocking rib is connected between the first protruding rib and the second protruding rib to form a containing groove for containing the physical interface, and the heat dissipation part extends out of the limiting blocking rib of at least one protruding part and is used for being connected with a chip which is arranged on the mainboard and is close to the edge area of the mainboard. According to the invention, the input/output interface support ...

Differential pressure type flowmeter multivariable fusion diagnosis method

The invention discloses a multivariable fusion diagnosis method for a differential pressure type flowmeter. The multivariable fusion diagnosis method comprises the steps of data acquisition, data preprocessing, basic credibility adjustment, feature data dimension reduction, historical database construction, MPCA model establishment, statistical control quantity and statistical control index comparison and the like. A plurality of flow measurement related variables are obtained by adopting a multi-parameter differential pressure type flow meter integrating a pressure/differential pressure sensor, a temperature sensor, a position sensor, a conductivity sensor and the like, information of the plurality of flow measurement variables is fused by adopting a D-S evidence theory, a PCA principal component analysis method and other data fusion technologies, a unified decision result is provided, and the flow measurement accuracy is improved. According to the method, the system judgment accuracy ...

Hoisting machine for electrical equipment on telegraph pole

The invention relates to the technical field of electrical equipment, in particular to a lifting machine for electrical equipment on a telegraph pole, which comprises a climbing assembly and a lifting assembly, the climbing assembly comprises a climbing part, a transmission part, a clutch part and a driving part, the transmission part is matched with the climbing part, the clutch part is matched with the driving part, and the driving part is connected with the climbing part and is matched with the transmission part; the fixing assembly comprises a fixing ring and a fastening piece, the fixing ring is matched with the fastening piece, and the fixing ring and the fastening piece are matched with the climbing piece; and the lifting assembly comprises a lifting frame and a lifting piece, the lifting piece is matched with the lifting frame, and the lifting frame and the lifting piece are connected with the climbing piece. The lifting machine can be lifted along a telegraph pole through the climbing ...

CHANNEL ANALYSIS MODEL OF MIMO SYSTEM, CHANNEL MODELING METHOD OF MIMO SYSTEM, AND COMPUTER READABLE STORAGE MEDIUM

Provided are a channel analysis model of a multiple-input multiple-output (MIMO) system, a channel modeling method of a MIMO system, and a computer readable storage medium. The channel analysis model of a MIMO system comprises an antenna component and an analysis module, wherein the antenna component comprises a transmitting antenna array composed of a plurality of transmitting antenna array elements and a receiving antenna array composed of a plurality of receiving antenna array elements, and the analysis module is configured to establish a channel model of a MIMO system according to the correlation among the transmitting antenna array elements, the correlation among the receiving antenna array elements, and a channel matrix between the transmitting antenna array and the receiving antenna array.

Construction waste recycled aggregate geogrid reinforcing construction method and geogrid

The invention relates to a construction waste recycled aggregate geogrid reinforcing construction method which comprises the following steps: 1) paving geotextile on a roadbed layer, and paving a lower geogrid layer on the geotextile; (2) the lower geogrid layer is fixed to the roadbed layer through anti-slide piles, and the anti-slide piles are driven into the roadbed layer through a rubber hammer or a compacting machine; (3) after the lower geogrid layer is tightly connected with the roadbed layer, the construction waste recycled aggregate is laid, and the construction waste recycled aggregate is compacted in a layered mode; (4) geogrid layers are laid in the construction waste recycled aggregate layer every 40-60 cm, and all the geogrid layers are fixed through anti-slide piles; and (5) the construction waste recycled aggregate layers are sequentially laid in a layered mode till the designed elevation is reached, and a pavement layer or an upper-layer structure is laid on the tops of ...

Underground water seal well backfill construction method

The invention belongs to the technical field of mine sealing and filling, and discloses an underground well sealing and backfilling construction method, an underground well sealing and backfilling anti-seepage structure comprises a shaft buried underground, and a shaft bottom anti-seepage layer and an upper anti-seepage layer are sequentially filled in the shaft from bottom to top. The well bottom anti-seepage layer corresponds to an underground karst water layer and is used for anti-seepage protection of the karst water layer in the well; the well bottom impermeable layer comprises a first cast-in-place concrete layer, a first clay layer and a first gangue layer which are sequentially filled from bottom to top. The three anti-seepage layers are arranged and can cope with karst water, sand brine and underground water respectively, a better blocking effect can be achieved while layered and classified blocking is achieved, and the adjacent water layers are effectively prevented from being ...

Machine table with electromagnetic shielding function

... 本实用新型提供种具有电磁屏蔽功能的机桌，该机桌包括用于放置第交互设备的屏蔽箱体，用于连通所述屏蔽箱体外部的第二交互设备和屏蔽箱体内部的电源接头的屏蔽电源线路；用于连通屏蔽箱体内部的第交互设备和屏蔽箱体外部的第二交互设备的屏蔽信号线路；所述屏蔽电源线路上设置有电源滤波装置；所述屏蔽信号线路上设置有信号滤波装置。在使用该机桌对台式电脑进行屏蔽时，只要将电脑主机安装于机桌的屏蔽箱体内，并采用该屏蔽电源线路和屏蔽信号线路分别将低辐射显示器连接到电源和电脑主机即可对显示器进行屏蔽，亦即不需要再额外设置显示器的屏蔽装置，就可以实现对整个台式电脑的信号屏蔽，极大的节省了屏蔽材料的使用量，节省了资源。 ...

Target detection method, system and equipment based on image size optimization and medium

The invention discloses a target detection method, system and device based on image size optimization and a medium, and relates to the technical field of image processing, and the method comprises the steps: obtaining a security check image, and marking a target position; cutting the security check image to obtain a target image, and constructing a training set; determining a width adjustment proportion and a height adjustment proportion of the target image according to an image size requirement; if at least one of the wide adjustment proportion and the high adjustment proportion is not smaller than a proportion threshold value, at least one other target image is selected from the training set to be spliced with the current target image, and the spliced target image is subjected to size adjustment and filling processing according to the image size requirement; and performing coordinate transformation on the target coordinates in the processed target image, and training the constructed network ...

Filtering socket

... 本实用新型提供种滤波插座，该滤波插座包括：壳体，由所述壳体内延伸至壳体外的电源线以及设置于所述电源线端的电源插头，位于所述壳体外部的电源线上和/或所述电源插头上设置有滤波装置；所述滤波装置与所述电源线电连接。该滤波插座不仅在插座壳体内部设置滤波器，同时在设置于插座壳体外部的电源线和/或电源插头中设置滤波装置，信号经过插座壳体内部的滤波器进行滤波屏蔽后，再次经过电源线和/或电源插头中的滤波装置的滤波屏蔽，不会发生信号被再次放大，从而导致辐射泄漏的问题，极大的提高了滤波插座的滤波效率，屏蔽效果更佳。 ...

Battery electric leakage risk detection method and device, equipment and storage medium

The invention belongs to the technical field of new energy, and discloses a battery electric leakage risk detection method and device, equipment and a storage medium. The method comprises the following steps: acquiring a battery torque value of the current hybrid vehicle; determining an electric leakage risk value of the current hybrid vehicle according to the battery torque value; when the electric leakage risk value is greater than or equal to a preset risk threshold value, generating prompt information; and sending the prompt information to a target terminal, so that the target terminal completes electric leakage risk prompt according to the prompt information. Through the mode, whether the battery is loosened or not is judged on the basis of the battery torque value, if the battery is loosened, a user is reminded in time to avoid energy waste and safety problems caused by long-term electric leakage, and the safety and the use experience of the hybrid vehicle are improved.

Tantalum metal patella prosthesis for patella defect and manufacturing method

The invention provides a tantalum metal patella prosthesis for patella defects and a manufacturing method, the prosthesis comprises a body made of tantalum metal through printing, the body is a personalized tantalum metal body made of 3D printing, the tantalum metal body is of a hollow shell structure, and the tantalum metal body is made of tantalum metal. The outer surface of the shell structure is at least provided with an articular surface used for forming a joint with a femoral articular surface and a fusion surface used for being in contact with a small amount of residual patella bone and inducing osteocyte division and ingrowth, and a plurality of suture holes used for initial fixation of the prosthesis are uniformly formed in the peripheral edge of the shell structure; the method comprises the following steps: taking an uninjured side patella as a reference, and obtaining an affected side patella prosthesis model in a mirror image overturning manner. Through creative design, a system ...

Train collaborative management method and system, electronic equipment and electronic readable storage medium

The invention relates to a train collaborative management method and system, an electronic device and an electronic readable storage medium, a front train and a rear train are associated, the front train and the rear train communicate with each other, and the rear train obtains position information and speed information of the front train in communication; and if the rear train is within the cooperative influence range of the front train, triggering distance control and speed control between the rear train and the front train so as to facilitate autonomous control of the rear train relative to the front train, and if the rear train is within the safety range of the front train, triggering distance control and speed control between the rear train and the front train so as to facilitate autonomous control of the rear train relative to the front train. The speed of the adjusted train and the speed of the front train are kept cooperative, information interaction is performed based on communication ...

Airborne magnetic suspension thrust test system and solar unmanned aerial vehicle

The invention provides an airborne magnetic suspension thrust test system and a solar unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle thrust test. One end of the rotor shaft is connected with a propeller shaft of the unmanned aerial vehicle; the axial magnetic suspension bearing comprises two stator supports located on the periphery of a rotor shaft, axial magnetic suspension coils are arranged on the stator supports, the periphery of the rotor shaft is connected with a magnetic suspension thrust disc and axial magnetic suspension magnetic steel, the magnetic suspension thrust disc is located between the two stator supports, and an air gap is formed between the magnetic suspension thrust disc and the two stator supports. The two displacement sensors are used for detecting the distance between the displacement sensors and the magnetic suspension thrust disc; a radial magnetic suspension bearing; the control unit is electrically connected with the axial ...

Collapsed building detection method and device and medium

The invention discloses a collapsed building detection method. The method comprises the steps of collecting high-resolution remote sensing image information, and obtaining a low-level feature map and a high-level feature map; re-weighting the attention features according to the importance degree of each feature channel in the low-level features and the high-level features, and inhibiting non-important features; and through cost-sensitive iteration of the loss function, outputting a prediction result of the collapsed building category sample. Complementary information of high and low layer features can be fully excavated, and the ability of extracting the contour of the collapsed building is improved. According to application characteristics of collapsed building detection, a CSloss is provided, and the loss weight of a collapsed building misclassification sample is adaptively increased, so that the network can be forced to pay more attention to learning of the collapsed building sample, ...

Data analysis method and data analysis system

The invention relates to a data analysis method and a data analysis system. The data analysis method comprises the following steps: S100, preprocessing data received by a navigation receiver of a satellite; s200, analyzing the preprocessed data according to the protocol type of the navigation receiver; s300, configuring a data analysis template according to the analyzed data; and S400, performing data analysis according to the data analysis template. The universal data analysis method for satellite navigation receivers of different protocol types can be realized.

Fatigue simulation test device for flexible film photovoltaic module

The invention relates to a flexible film photovoltaic module fatigue simulation test device, which belongs to the technical field of film material test, and comprises a test assembly module, a motion execution module, a wind field module, a measurement module, a control module and a base. The motion execution module comprises a tension-torsion actuating mechanism, the test assembly module is in threaded connection with the motion execution module, one end is a fixed end, the other end is an actuating end, and the test assembly module is connected with the tension-torsion actuating mechanism; the tension-torsion actuating mechanisms independently generate stretching and torsion motions and transmit the stretching and torsion motions to the test assembly module. The wind field module generates airflow at a certain speed to act on the upper surface of the test assembly module, the measurement module monitors the surface airflow speed, the tensile acting force and torsion moment of the clamping ...

Deepwater bottom mud sampling system, sampling method thereof and mud sample calculation method

The invention discloses a deepwater bottom mud sampling system, a sampling method thereof and a mud sample calculation method. The sampling system comprises an underwater sampling device, a winch, a controller, a human-computer interface, an aerostatic press and a power supply, the underwater sampling device comprises a sampling device body, a pneumatic hammer, a piston sampler, a sampling pipe, a water level gauge, a displacement meter, a camera with an illuminator, an inclinometer and a distance sensor, and the sampling device body comprises a cylindrical shell, a blocking cover, a sliding rail and a supporting rod. The labor cost and the labor intensity are reduced, the mud sample is not disturbed, and the actual length of each layer of mud sample can be accurately calculated through the mud sample calculation method.

Brake switching device and method and related products

The invention relates to the technical field of train operation control, and discloses a brake switching device and method and a related product, the states of a first control signal and a second control signal are monitored in real time through an ATP, a corresponding instruction is sent to the device according to the monitoring result, and when a bistable relay receives the instruction sent by the ATP based on the real-time monitoring result, the brake switching device is switched on. Controlling the guiding state of the bistable relay; automatic switching of train control equipment brake control signals crossing different block system intervals is achieved, and the train operation efficiency and the train track line reuse rate can be improved; the technical problem that in the prior art, due to the fact that a high-grade train control equipment link is used for outputting a control instruction, the train operation efficiency and the rail line reuse rate are low is solved. Meanwhile, ...

Real-time test method for lift-drag ratio of solar unmanned aerial vehicle, electronic equipment and medium

The invention discloses a solar unmanned aerial vehicle lift-drag ratio real-time test method, electronic equipment and a medium. The method comprises the following steps: establishing an axial unilateral equivalent magnetic circuit model of the solar unmanned aerial vehicle, and calculating the total magnetic resistance of a magnetic circuit; calculating magnetic resultant force generated by the magnetic suspension bearing according to the total magnetic resistance; the thrust of the solar unmanned aerial vehicle is calculated according to the resultant force of the magnetic force generated by the magnetic suspension bearing of each propelling system; the lift force and resistance of the solar unmanned aerial vehicle are calculated, and then the lift-drag ratio is calculated. The method is realized based on an axial pure electromagnetic bearing, can realize real-time acquisition of the lift-drag ratio of the solar unmanned aerial vehicle during flight without adding any additional hardware ...

Data access method and device, disk controller, disk and data storage system

The invention discloses a data access method and device, a disk controller, a disk and a data storage system.The data access method comprises the steps that the disk controller obtains first data to be written into a target disk and sends the first data to the target disk; when it is determined that the first data needs to be written in a delayed mode, the disk controller sends a delayed writing instruction for the first data to the target disk, so that the target disk is prevented from frequently executing data writing operation, and resource consumption caused by data writing is reduced; or, the disk controller determines a target storage address of the prefetched data and a target disk, and sends a prefetched data instruction generated based on the target storage address to the target disk, so that the target disk stores the data stored in the nonvolatile memory into the cache unit, and the data can be directly read from the cache unit subsequently. According to the data storage method ...

Tubular object deformation detection method

The invention discloses a tubular object deformation detection method. The method comprises the following steps: (1) establishing a finite element analysis model of a tubular object; (2) applying load and constraint, simulating actual working conditions, and calculating to obtain theoretical deformation data and deformation distribution data; (3) determining a deformation detection measuring point of the tubular object according to the theoretical deformation distribution data; (4) under the actual working condition, the deformation amount of the deformation detection measuring point is measured, and measurement data is obtained; and (5) comparing the theoretical deformation data with the measurement data, performing error analysis, and determining the theoretical deformation data as the final deformation if the error is less than or equal to an error limit value. According to the method, two methods of experimental measurement verification and finite element analysis are combined, tubular ...

Ultrasonic wave low temperature of improvement draws jar

... 本实用新型公开一种改良的超声波低温提取罐，包括控制器、罐体、超声探头、涡轮式搅拌桨和低温循环水浴槽组成。在进行10-40L动植物、微生物细胞大量破碎提取时，罐体夹层控制料液温度，开启超声破碎同时开启搅拌浆，与传统超声波低温提取罐相比，本实用新型在罐体内增加涡轮式搅拌桨，不仅可以解决在大批量细胞在低温条件下破碎时超声不均匀的现象，也可以避免靠近超声探头附近的目的蛋白因局部温度过高造成失活的现象，本实用新型的应用大大降低了超声破碎提取细胞过程中目的蛋白的失活率，使整个提取过程更加科学、有效。 ...

Multifunctional grinding device for large complex parts

The invention provides a multifunctional grinding device for large complex parts, and relates to the technical field of part grinding, the device comprises a bottom plate, and a first linear module, a second linear module and a third linear module are arranged on the upper side of the bottom plate in the X direction, the Y direction and the Z direction respectively; the multifunctional grinding structure is connected to the lower end of the third linear module through a rotating structure, the rotating structure can drive the multifunctional grinding structure to rotate in the XZ plane and the YZ plane, and the multifunctional grinding structure comprises a shell, a grinding actuator, a cleaning actuator, a gluing actuator, a drying actuator and a dust removal actuator; a positioning structure and a moving structure are arranged on the two sides of the tool table correspondingly. The problems that in the prior art, grinding of large complex parts such as wing ribs depends on manual work ...

Adjustable one-way valve with pressure relief structure

The adjustable one-way valve with the pressure relief structure is applied to the field of valves, the position of a valve element can be flexibly adjusted by arranging an adjusting and controlling assembly, the size of an opening in the communicating position among an inlet, an outlet and a communicating channel a can be flexibly adjusted, and flow control in the device can be conveniently achieved to a certain extent; a check plate is rotatably mounted in a hollow square pipe through a rotating shaft and a torsion spring, one-way opening of the check plate is achieved in cooperation with stopping of a limiting block, backflow fluid can be effectively limited, a pressure relief hole communicates with the middle position of the bottom of a square channel, the hollow square pipe is elastically supported in cooperation with a spring a, and the pressure relief hole is communicated with the middle position of the bottom of the square channel. And when the pressure of fluid flowing back in the ...

Solar energy radar water level measuring apparatu

... 本实用新型公开了一种太阳能雷达水位测量仪，包括底座，所述底座上设置安装槽，所述安装槽内设置立柱，所述立柱设置限位凸起，所述限位凸起上均匀设置弹簧，所述立柱内设置支撑架，所述支撑架包括竖直设置的第一支撑杆以及悬臂；所述调节机构包括一端可转动地铰接在悬臂上且另一端通过抱箍与第一支撑杆锁紧的连杆、穿套在悬臂上且与第一支撑杆固定的套筒，所述悬臂的一端与雷达水位计连接，另一端设置第二支撑杆，所述第二支撑杆上设置太阳能电池板。本实用新型的有益效果在于：将雷达水位计和太阳能电源构成的雷达水位监测系统，集成为一体化结构，安装、拆卸和维护都非常方便，而且能够避免支撑杆发生倾斜，增加测量的准确度。 ...

Water flow velocity monitoring equipment for hydrological environment-friendly monitoring

The invention discloses hydrological environmental protection monitoring water flow velocity monitoring equipment, which comprises a base, four supporting columns are symmetrically and fixedly connected to the lower side wall of the base, a pulley is installed at the lower end of each supporting column in a rolling manner, and threaded pipes are symmetrically and rotatably connected to the inner top wall of the base. Threaded rods extending into the base are symmetrically connected to the outer wall of the lower side of the base in a threaded mode, the outer walls of the threaded rods located on the same side are in threaded connection with the inner walls of threaded pipes, drill bits are fixedly connected to the lower side walls of the two threaded rods, and a first motor located between the two threaded pipes is fixedly connected to the inner top wall of the base. According to the device, the water flow velocity monitoring equipment body is adjusted in the horizontal direction and the ...

Amplitude modulation decomposition type shape memory alloy and preparation method thereof

The invention discloses an amplitude-modulated decomposed shape memory alloy and a preparation method thereof, and the preparation method of the amplitude-modulated decomposed shape memory alloy comprises the following steps: preparing a Ti source, a Zr source and a Ta source, smelting to obtain a TiZrTa alloy ingot, rolling the TiZrTa alloy ingot to obtain a rolled plate, and annealing the rolled plate at 600-750 DEG C to obtain the amplitude-modulated decomposed shape memory alloy. The amplitude-modulated decomposed shape memory alloy comprises the following components in percentage by mass: 12%-20% of Ta, 42%-48% of Zr and the balance of Ti. The amplitude-modulated decomposition type shape memory alloy provided by the invention has excellent mechanical properties and also shows superelasticity after amplitude-modulated decomposition. The preparation method of the amplitude-modulated decomposition type shape memory alloy is simple, controllable and low in cost.

Unilateral synchronizer and transmission

The unilateral synchronizer comprises a tooth holder, the tooth holder is of an annular structure and comprises positioning openings and a limiting part, the positioning openings are evenly distributed in the outer side face of the tooth holder in the circumferential direction, and the limiting part is arranged at one end of the tooth holder in the axial direction; the push block is arranged on the positioning opening; the gear sleeve is arranged outside the push block in a sleeving manner; the synchronous ring is arranged at the other end of the tooth holder in the axial direction so as to limit the push block; and the check ring is mounted in the limiting part and is used for limiting the push block. The synchronous ring is arranged on one side of the tooth holder in the axial direction and abuts against the push block, the limiting part is arranged on the other side of the tooth holder in the axial direction, and the check ring is installed in the limiting part and abuts against the ...

Microarray high-molecular polymer/amorphous alloy film composite material and preparation method thereof

... 轻质微点阵材料(密度ρ≤1000mg/cm)具有质量轻、力学强度高的特性，其吸声、吸热、减震等性能，在航空、航天、建筑等领域具有较大需求。本发明涉及种微点阵高分子聚合物/非晶合金复合材料的制备方法，包括：1)采用快速成型技术制备所设计结构的三维微点阵聚合物模板；2)在立体微点阵高分子聚合物模板表面沉积非晶合金薄膜。采用本发明制得的微点阵复合材料，增加了高分子材料基体的韧性，并且具有低密度、高强度、耐高温、优越的光、电、热、耐磨等性能，是种多功能的轻质点阵材料。 ...

Valve welding workbench

The invention discloses a valve welding workbench which comprises a base, a support, a locking mechanism, a clamping mechanism and a control unit, a first driving assembly is arranged between the base and a rotary table, and the first driving assembly comprises a first driving motor and a speed reducer; the locking mechanism comprises a position sensor, a baffle and a positioning plate, and an electromagnet matched with the baffle is arranged at the positioning plate; the clamping mechanism comprises a first support, a second support and a first rotating shaft, the first support is fixedly connected with the support, the second support is slidably connected with the support through a slide way, a second driving motor is arranged at the first support, an adjusting mechanism is arranged at the support, and the adjusting mechanism is connected with the second driving motor. The end of each first rotating shaft is provided with a chuck matched with a valve sleeve. The valve welding workbench ...

Space environment monitoring device and space environment monitoring method

The invention relates to a space environment monitoring device and a space environment monitoring method.The space environment monitoring device comprises a shell, a direct current motor and a rotary table, a plurality of microswitches are installed on the outer surface of the shell, the direct current motor is fixed in the shell, and a power output shaft penetrates out of the shell and is fixedly connected with the center of the rotary table; the side face, close to the microswitches, of the rotary disc abuts against the microswitches and is used for triggering the microswitches. The side face, close to the microswitches, of the rotary disc is further provided with a plurality of pits. A plurality of exposure holes which are distributed at equal intervals in the circumferential direction are further formed in the rotary disc, a plurality of sensor assembling grooves which are distributed at equal intervals in the circumferential direction are formed in the shell, and the rotary disc can ...

Pressurized water reactor fuel assembly bending calculation method

The invention relates to a pressurized water reactor fuel assembly bending calculation method, which comprises the following steps of: calculating fuel assemblies with different water gap sizes by a pressurized water reactor assembly calculation program to obtain few group constants of different water gap sizes of various types of fuel assemblies; functionalizing the few-group constants of various types of fuel assemblies, and merging to obtain fuel assembly few-group constant libraries with different water gap sizes; obtaining three-dimensional water gap distribution data of the reactor core based on measured bending data of the pressurized water reactor fuel assembly; based on the three-dimensional water gap distribution data of the reactor core, updating each square segment of the reactor core into a rectangular segment, and obtaining a few-group constant of the rectangular segment through linear interpolation of the water gap; based on surface neutron flux density conservation and surface ...

Fixed trackside solid lubricant device of roadside hazard

... 本实用新型公开了种道旁固定式轨侧固体润滑装置，它含有润滑器、传感器、控制器和电源，所述润滑器包括箱体和润滑块，所述箱体内设置有支撑板，所述支撑板下端通过升降杆与动力机构连接，所述支撑板上端能够设置有润滑块，所述箱体的上端设置有开口，所述润滑块的上端能够从所述开口中伸出，所述动力机构、传感器分别与所述控制器连接，所述箱体和传感器通过连接件能够安装在火车轨道上。本实用新型消耗润滑剂量少，无散落，无环境污染，不会侵入轮轨踏面造成机车打滑，并且固体材料不含任何矿油或有机溶剂，不会产生轮轨表面的鱼鳞般和鱼尾纹，可消除油楔作用产生的轮轨表面剥离掉快。 ...