Dish washing machine with automatic door opening ejection structure

The invention discloses a dish-washing machine with an automatic door opening ejection structure, which comprises an inner container and an inner container frame arranged on the outer side of the inner container, a door body is hinged on the inner container, a door lock structure is arranged on the upper surface of the inner container frame, the door lock structure comprises a driving motor, and the driving motor is connected with an ejection structure. The ejection structure comprises a door body ejection rod and a clamping jaw integrally formed at one tail end of the door body ejection rod, a door lock buckle is installed at the position, opposite to the ejection structure, of the door body, and the door lock buckle and the clamping jaw are installed in a matched mode. According to the dish washing machine with the automatic door opening ejection structure, the ejection structure and the door lock are integrated together, the effect of centrally opening the door by concentrating force ...

Salt-tolerant saccharomycetes and application thereof

The invention discloses salt-tolerant saccharomycetes and application thereof. The salt-tolerant saccharomycetes LH-Y.0003 disclosed by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC NO.19111, the preservation date is December 9, 2019, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The salt-tolerant yeast can be applied to preparation of salt-tolerant microbial agents and salt-tolerant yeast extract powder, is used for enhanced biological treatment of high-salinity wastewater with the salinity of 1-25%, and has a good application prospect.

Inserted and connected concave bank composite ecological protection slope

The spliced and connected concave bank composite ecological protection slope comprises a protection slope ecological frame, one side of the protection slope ecological frame is connected with a first sliding groove, the side, away from the first sliding groove, of the protection slope ecological frame is connected with a sliding column, and one end of the protection slope ecological frame is connected with the protection slope in an embedded mode; the splicing and inserting mechanism comprises a first shell and a second shell, one face of the first shell is fixedly connected with one face of the slope protection ecological frame, a first cavity is formed in the first shell, a first locking assembly is arranged in the first cavity, one face of the second shell is fixedly connected with the face, away from the first shell, of the slope protection ecological frame, and a second locking assembly is arranged in the second cavity. The second shell is provided with a second cavity, and a second ...

Fishway device with multi-stage flood discharge energy dissipation and power generation functions

The fishway device comprises a main body unit, and the main body unit is arranged in a river channel and comprises a fishway bottom plate, an inlet and an outlet, a containing groove and a fishway wing wall; the power generation unit comprises an extrusion assembly, electric push rods arranged on the two sides of the extrusion assembly, an energy storage assembly arranged above the extrusion assembly and a cover plate arranged above the energy storage assembly. And the energy dissipation unit comprises a first-stage water retaining assembly arranged on one side of the power generation unit and a second-stage water retaining assembly arranged on one side of the first-stage water retaining assembly, and the second-stage water retaining assembly is arranged on the fishway bottom plate. According to the fishway device with the multi-stage flood discharge energy dissipation and power generation functions, normal migration of fishes is guaranteed through cooperative use of the first-stage water ...

FAT PROCESSING APPARATUS

A fat processing apparatus, comprising a cleaning module and a crushing module. The cleaning module comprises a cleaning means and a liquid reservoir; the cleaning means can clean fat in the liquid reservoir by using a cleaning solution, and after cleaning, the liquid reservoir is placed still for layering; the layers comprise a fat layer and a cleaning solution layer; the liquid reservoir is connected to a fat input tube (6), a cleaning solution input tube (7), a fat output tube (8), and a waste liquid tube (9); the fat enters the liquid reservoir through the fat input tube (6); the cleaning solution enters the liquid reservoir through the cleaning solution input tube (7); the cleaning solution layer is discharged by the waste liquid tube (9); the liquid reservoir transfers, by means of the fat output tube (8), the fat layer to the crushing module for crushing. The apparatus can clean extracted fat and crush the cleaned fat to obtain fat particles having excellent particle size distribution ...

CONSUMPTION MANAGEMENT SYSTEM AND METHOD

The embodiment of the present invention provides a consumption management system and method. The system comprises: a platform module, used for receiving consumption action information submitted by a user and a valid code of a payment tool used for paying the consumption action by the user, and is used for associating the consumption action information and the valid code of the payment tool to generate a consumption identification code; a payment terminal, used for collecting an actual code of the payment tool; and a verification module, used for receiving the consumption identification code, receiving the actual code of the payment tool collected by the payment terminal, and determining whether the actual code matches the valid code in the consumption identification code, and the two matches, obtaining the consumption action information submitted by the user according to the consumption identification code.

WASHING MACHINE ASSEMBLY

The present application relates to washing machine assembly. The described washing machine assembly comprises a body, an outer drum, an inner drum, a door assembly and an ultrasound apparatus; the outer drum is connected to the body, and an accommodating container and an open groove that communicate with each other are formed inside of the outer drum; the inner drum is located inside of the accommodating container and a washing tank is formed in the inner drum; the door assembly is rotatingly connected on the outer drum, the door assembly covers the outer drum so as to block the open groove, and an installation hole is formed inside of the door assembly; the ultrasound apparatus is located inside of the installation hole and is connected to the door assembly, and the ultrasound apparatus is at least partially located inside of the washing tank.

智能网关

Object size identification method based on monocular camera and monocular camera moving device

The invention provides an object size identification method based on a monocular camera, and designs a monocular camera moving device for assisting in realizing the method. The object size identification method based on the monocular camera comprises the following steps: calibrating the monocular camera; obtaining two or more images with different sizes of a target object through shooting; processing the two or more images, and obtaining external contour parameters of the target object in the processed images; and calculating the actual size of the target object through a target object size calculation formula. Through the configuration, the actual size of the object can be calculated through the circumcircle parameters of the target object in the two or more images, the moving distance of the monocular camera and the calibration parameters of the monocular camera. In addition, the invention further designs a monocular camera moving device which is simple and convenient in structure and ...

Multi-sensor fusion multi-terminal target identification and positioning method

The invention relates to the technical field of image processing, in particular to a multi-sensor fused multi-terminal target recognition and positioning method, which comprises the following steps of: performing stack preprocessing on camera data and laser radar data; time synchronization and jitter prevention are realized; constructing a neural network to carry out target detection; image and radar information fusion and joint search: fusing the point cloud and the image and searching for an object on the image; and carrying out spatial position calculation. The robot fixed navigation based on the fixed view angle in the fixed scene has the characteristics of high cohesion and low coupling, the automatic driving system available in the whole scene can realize the use of one set of system and multiple terminals, the equipment cost and the existing equipment modification cost are greatly reduced, the overall planning of the whole scene is more comprehensive, and the operation is more convenient ...

Valve actuating mechanism applied to unmanned ship

The valve actuating mechanism is characterized in that a gland is fixedly installed at the lower end of a box body, and the upper portion of a valve body is in sealed connection with a threaded blind hole formed in the lower end of the gland through a sealing pressing ring; the valve body operating shaft penetrates through the gland and the lower part of the box body and extends into the box body; the valve body operation shaft is fixedly connected with the lower portion of the valve end coupler, the upper portion of the valve end coupler and the lower portion of the motor end coupler are connected in the mode that the valve end coupler is limited in the circumferential direction and can move relatively in the axial direction, and the motor end coupler is in driving connection with an output shaft of the constant-speed motor. The cap is sleeved outside the valve end coupling, is in threaded connection with the outer circular surface of the valve end coupling through fine threads, and is ...

Method for detecting chromatic aberration of cobalt chloride test paper for diabetes

The invention relates to the technical field of test paper color change analysis, in particular to a method for detecting color difference of diabetes cobalt chloride test paper, which comprises the following steps: acquiring a connected domain in a surface grayscale image after the diabetes cobalt chloride test paper is used; obtaining regional information richness of each connected domain according to the pixel fluctuation degree, the texture information and the gray difference condition in the connected domain; determining a gray scale weight according to the difference between each pixel point and the gray scale minimum value in the connected domain, and further obtaining a color coefficient characterization value of each pixel point; and clustering the pixel points in the surface grayscale image according to the color coefficient representation value of each pixel point to obtain two categories, and determining the color difference detection result of the cobalt chloride test paper ...

Agricultural waste fertilizer making machine

The invention relates to the technical field of fertilizer making machines, and particularly discloses an agricultural waste fertilizer making machine which comprises a supporting shell, the supporting shell comprises a shell box body, an outer feeding port is formed in the top of the shell box body, an inner rotating assembly is installed in the shell box body, and the inner side of a stirring rotary knob is movably connected with a ventilation mechanism. A control mechanism is fixedly connected to one side of the shell box body, an air guide pipe is installed at the bottom of the control mechanism, a transmission motor is fixedly connected to the top of the control mechanism, a transmission rod is fixedly connected to the bottom of the transmission motor, and a pushing frame movably sleeves the outer side of the transmission rod; according to the invention, the ventilation mechanism and the control mechanism are arranged, so that gas can enter the internal rotation assembly from the bottom ...

Biological denitrification method for high-salt and high-calcium wastewater

The invention discloses a biological nitrogen removal method for high-salt and high-calcium wastewater, an A/O biological nitrogen removal process is adopted, a biological nitrogen removal tank comprises a denitrification area A and a nitrification area O, the dissolved oxygen of the denitrification area A is 0.1-0.3 mg/L, the pH value is 6.0-8.5, the dissolved oxygen of the nitrification area O is 1.0-5.0 mg/L, the pH value is 7.5-9.5, a biological rope filler is mounted in the biological nitrogen removal tank, the diameter of the filler is 20-30 mm, and the mounting density is not less than 300 m/m < 3 >; adding halophilic denitrification microorganisms into the biological denitrification tank for biofilm culturing, and operating by adopting an A/O-biofilm method; alkali liquor is added into the biological denitrification tank to adjust the pH and alkalinity, and the number of the alkali liquor adding points is not less than 4. According to the method disclosed by the invention, a plurality ...

Multifunctional carpet laying device

The invention relates to a multifunctional carpet laying device, which can realize carpet laying and compaction on two paths at the same time, and can adjust the height, so that the carpet laying and replacement are more convenient. The motor is fixed to the base plate, the motor is matched with the large belt wheel to transmit power so that the belt can rotate, then the small belt wheel is driven to rotate, the small belt wheel is matched with the speed reducing mechanism to convert high-speed rotating power into larger torque to be output, then the larger torque is transmitted to the roller shaft through the coupler, and the roller shaft is driven to rotate. The roller shaft is arranged on the trolley base plate, so that the carpet is laid, the compacting mechanism is located on the carpet and can compact the laid carpet, the lifting mechanism is located in a reserved hole of the trolley base plate, the upper end of the lifting mechanism is embedded in a reserved hole of the supporting ...

Composite electrode material and preparation method and application thereof

The invention provides a composite electrode material and a preparation method and application thereof. The composite electrode material comprises an MOFs skeleton and an activator dispersed in the MOFs skeleton, and the MOFs skeleton contains a polyhydroxy large pi conjugated ligand. According to the composite electrode material provided by the invention, the oxidation-reduction center, the periodic skeleton and the mechanical flexibility of the MOFs material are reserved, the conductivity and the surface activity of the MOFs composite material are effectively enhanced, different metal ions/clusters are constructed at the molecular level, the electrochemical activity of the MOFs material is greatly optimized, and when the composite electrode material is used in a lithium ion battery, the electrochemical performance of the MOFs material is greatly improved. And a more stable nucleation structure can be formed, the agglomerated structure is reduced, and the monodisperse structure is increased ...

Vehicle diagnosis system, method and equipment and storage medium

The invention discloses a vehicle diagnosis system, method and device and a storage medium, and is applied to the technical field of vehicle diagnosis. Comprising an in-vehicle terminal used for obtaining a diagnosis function selected by a user and sending the diagnosis function to a computer device based on a standardized in-vehicle and out-vehicle diagnosis interface; the computer equipment is used for acquiring a diagnosis function, generating a target screening instruction corresponding to the diagnosis function, screening acquired diagnosis results according to the target screening instruction to determine a target diagnosis result corresponding to the target screening instruction, and sending the target diagnosis result to the vehicle terminal; and the vehicle terminal is used for receiving and displaying the target diagnosis result. The vehicle terminal sends the diagnosis function to the computer device based on the standardized in-vehicle and out-vehicle diagnosis interface so ...

Anaerobic ammonia oxidation wastewater treatment device and wastewater treatment system

The invention aims to provide an anaerobic ammonia oxidation wastewater treatment device and a wastewater treatment system. The anaerobic ammonia oxidation wastewater treatment device comprises a treatment box body, a first partition plate and a second partition plate, the first partition plate and the second partition plate are arranged in the treatment box body and divide the treatment box body into three spaces, namely an anaerobic treatment area on the left side of the first partition plate, a sediment collection area on the right side of the second partition plate and an aerobic treatment area positioned between the first partition plate and the second partition plate; a sludge intercepting and recycling device is arranged at the upper part of a first partition plate of the aerobic treatment area, an anaerobic biological sludge reflux inlet and an overflow hole are respectively formed in the upper part of the first partition plate, the anaerobic biological sludge reflux inlet is positioned ...

Intelligent equipment voice instruction execution method and device and storage medium

The invention relates to an execution method and device for a voice instruction of an intelligent device and a storage medium, and the method comprises the steps: obtaining a voice instruction of a user for controlling the intelligent device; performing word segmentation on a statement corresponding to the voice instruction, and comparing a word segmentation result with words in a preset database; comparing the sound wave image of the first word of which the word segmentation result is not in the database with the sound wave image of the second word in the database; under the condition that the similarity of the sound wave images exceeds a first preset threshold value, the voice instruction is executed in combination with the semantics of the second word. Through the method and the device, the problem that the effect of controlling the smart home through the voice instruction is poor due to the fact that voice recognition has deviation due to different pronunciation in related technologies ...

Remote intelligent inspection method and device for wind turbine generator

The invention provides a remote intelligent inspection method and device for a wind turbine generator. The device comprises a device main body, a solar cell panel, an image acquisition and adjustment device, a high-definition camera, a thermal imager, an adjustable cantilever, a helicopter propeller device and a handheld remote control terminal. Energy storage is achieved through the solar cell panel, and endurance energy is provided for the high-definition camera and the thermal imager; the acquisition direction and angle of the high-definition camera are adjusted through the image acquisition adjusting device; the high-definition camera and the thermal imager are used for photographing and recording the scene condition, and then the scene condition is transmitted to background software through a 4G signal; the angle position of the vertical lifting propeller device is adjusted through the adjustable cantilevers at all levels, and upward lifting force is provided. The device is remotely ...

Bone increment nail

The invention relates to a bone increment nail which comprises a nail cap body, a nail smooth part and a nail thread part which are sequentially connected from top to bottom; wherein the nail cap body is composed of a connecting part and at least two supporting parts, the connecting part is in smooth connection with a nail below the connecting part, and the supporting parts are arranged on the side face of the connecting part and extend outwards in the radial direction of the connecting part; a screw hole is formed in the top of the connecting part; the nail smooth part is a cylinder; and the nail thread part is a cone, wherein threads are arranged outside the cone, and a self-tapping groove is formed in the tip end of the cone in the axial direction of the cone. Compared with a traditional bone increment nail, the top of the bone increment nail is of the forked structure, and the size of the bone increment nail is smaller than that of a traditional cap-shaped structure; the degradation ...

Combined type coffee machine brewing head

The invention discloses a composite brewing head for a coffee machine, which comprises a heating inner container and a drain pipe, the drain pipe penetrates through the heating inner container, one end of the drain pipe is connected to the heating inner container, and the other end of the drain pipe penetrates through the heating inner container to serve as a water outlet of the brewing head. The combined type brewing head has extremely high stability of water outlet temperature, the water outlet temperature of the coffee machine is accurately controlled, so that coffee powder in a coffee funnel is better extracted, the temperature can be rapidly controlled, and the extraction requirements of different users are met.

X-ray lung mass image processing method based on computer vision

The invention discloses an X-ray lung mass image processing method based on computer vision, and relates to the technical field of image processing, and the method comprises the steps: obtaining an X-ray lung mass image; acquiring a skeleton mask of the X-ray lung mass image; removing a skeleton part in the X-ray lung mass image according to the skeleton mask to obtain a target image; obtaining a thoracic cavity region in the target image, and obtaining abnormal pixel points in the thoracic cavity region; obtaining a plurality of initial connected domains formed by the abnormal pixel points; acquiring an actual connected domain corresponding to each initial connected domain; performing super-pixel segmentation on each actual connected domain to obtain a plurality of different gray level areas; according to the gray level of each gray level area, obtaining the gray level change direction between different gray level areas; the technical problems that the lung lesion area cannot be accurately ...

Streaming big data platform data real-time processing method and system

The invention provides a streaming big data platform data real-time processing method and system, and the method comprises the steps: inputting a key time point of a service and a specified delay time by a user, and building a stack after a streaming big data platform is started; if the Event Time of the current data is smaller than the Event Time of the previous data, calculating the time difference between the Event Time of the current data and the current time, constructing a structural body comprising a data source, the time difference, whether the data is discarded or not and the Event Time, putting the structural body into a stack, calculating the sum of the time differences in the stack every M time windows, and all the data in the stack are taken out of the stack; if the received M time windows comprise the key time points and the number of the structural bodies is smaller than a preset value, setting the delay time to be 0; and otherwise, according to the sum of the time differences ...

Sheet metal split type dynamic vibration absorber

The invention discloses a metal plate split type dynamic vibration absorber which comprises a damping block, the damping block comprises a main damping block and an auxiliary damping block, and the auxiliary damping block is connected or assembled on the main damping block; the main damping block and the auxiliary damping block are each of a metal plate structure. According to the damping device, the main damping block and the auxiliary damping block are split, so that the damping device is more convenient and faster to assemble in a narrow space; meanwhile, the arrangement of the main damping block and the auxiliary damping block facilitates the control of the overall counterweight, and the frequency performance desired by a customer is controlled through the weight. The main damping block and the auxiliary damping block are each of a metal plate structure, and compared with traditional damping blocks made of different materials, the metal plate structures are lower in technological requirement ...

Long-life lithium ion battery negative electrode material and preparation method thereof

The invention discloses a long-life lithium ion battery negative electrode material and a preparation method thereof, and belongs to the technical field of lithium ion battery material preparation. The preparation method of the long-life lithium ion battery negative electrode material comprises the following steps: (1) adding graphite into a cobalt salt solution for dipping, then introducing carbon dioxide gas, and carrying out high-temperature activation to obtain modified graphite; (2) adding the modified graphite, asphalt and lithium salt into an organic solvent, uniformly dispersing, and then performing vacuum soaking under a heating condition to obtain a graphite precursor material; and (3) carrying out high-temperature fluorination treatment on the graphite precursor material to obtain the long-life lithium ion battery negative electrode material. The long-life lithium ion battery negative electrode material prepared by the invention has the advantages of excellent cycle performance ...

Warehousing front-end weighing detection mechanism

The invention relates to a warehousing front-end weighing detection mechanism, and aims to simplify the weighing process of an enterprise before goods warehousing, a whole roller conveying mechanism drives a lifting cylinder to lift, goods are transferred to a weighing support frame above an electronic balance, the weight of the goods is measured, after the measurement is completed, the lifting cylinder ascends, and the weighing process is completed. When the electronic balance breaks down and needs to be maintained or repaired, the whole moving mechanism is moved to the other side through the moving trolley, and then the electronic balance is repaired. The weighing device has the advantages that the weighing efficiency of an enterprise before goods are warehoused is improved, goods are conveyed through the moving mechanism and the roller conveying mechanism, the weight is measured through the electronic balance, the working efficiency can be greatly improved, manpower and material resources ...

RESOURCE CONFIGURATION METHOD AND APPARATUS FOR D2D COMMUNICATION, AND TERMINAL

Provided are a resource configuration method and apparatus for D2D communication, and a terminal, wherein the resource configuration method for D2D communication comprises: determining whether it is necessary to provide a relay function of D2D communication for other terminals; and when it is determined that it is necessary to provide the relay function of the D2D communication for the other terminals, configuring transmission resources which are used for performing the D2D communication for the other terminals, so that the other terminals perform the D2D communication using the transmission resources. According to the technical solution of the present invention, a secondary link of D2D communication can be fully utilized for connection, thereby realizing the flexible configuration of the transmission resources of other terminals, and effectively solving a resource allocation problem in the D2D communication.

METHOD FOR EXTRACTING AND SEPARATING ZIRCONIUM AND HAFNIUM FROM HYDROCHLORIC ACID MEDIUM

A method for extracting and separating zirconium and hafnium from a hydrochloric acid medium, relating to the technical field of fine separation of substances. The method mainly comprises: extract acid liquid of a zirconium compound by means of a synergic extraction system consisting of DIBK and a phosphonic acid extracting agent; zirconium is enabled to enter an aqueous phase, and hafnium is enabled to enter an organic phase for realizing separation. No toxic substance is used in the whole process and the purpose of clean production is achieved.

High-speed two-dimensional code gasket punching line

... 本发明提供了种高速二维码垫片冲切线，包括高速冲压机、工业控制柜及电脑控制系统，高速冲压机前端与板料伺服进给机构相连，板料伺服进给机构与开卷机构相连，高速冲压机后面与收卷机构相连，所述高速冲压机与板料伺服进给机构之间设有料带检测器械和两个工业摄相机，板料伺服进给机构与开卷机构之间设有机械纠偏机构，高速冲压机输出轴端设有进料信号器、高点信号器和感应板，高速冲压机与收卷机构之间设有聚氨酯板步进机构。本发明能够实时自动调节二维码垫板的进给量，采用聚氨酯薄板作为冲裁压力承接板，解决了普通冲床冲压二维码垫片冲次速度慢、毛刺多、噪音大等问题，极大地提高了工作效率和产品质量。 ...

Structural health monitoring missing data reconstruction method based on WGANGP-Unet

The invention discloses a WGANGP-Unet-based structural health monitoring missing data reconstruction method, which improves a loss function and a parameter optimization process and realizes high-precision structural health monitoring missing data reconstruction. The specific implementation process is as follows: A, pre-collecting and preprocessing structural health monitoring complete data, and constructing a training and verification data set; b, constructing a multi-layer U-net generator with a jump connection technology and a discriminator introducing a Wasserstein distance, and combining the multi-layer U-net generator and the discriminator to form a WGANGP-Unet framework; c, constructing a mixed loss function, and circularly minimizing the loss function to realize adversarial training of the WGANGP-Unet network model; d, comprehensively verifying a data reconstruction effect by adopting multiple indexes such as a loss function, a root mean square error of a signal time domain, a root ...

Split type hollow fiber column type membrane

The invention relates to the technical field of filtering membranes, and discloses a split type hollow fiber column type membrane which comprises an upper end cover, a cylinder, an ultrafiltration membrane filter element and a lower end cover, the upper end of a split type casting rubber part is detachably connected with the upper end cover in a sealed mode, the lower end of the split type casting rubber part is detachably connected with the cylinder in a sealed mode, and membrane filaments are located in the cylinder. The lower end of the cylinder is detachably connected with the lower end cover in a sealing manner, the upper end cover is provided with a water producing port, the water producing port is communicated with a water outlet of the membrane filament, the upper end cover is provided with a concentrated water outlet, the split type casting rubber part is provided with a concentrated water channel, the concentrated water outlet is communicated with the cylinder through the concentrated ...

Building construction engineering wall building equipment

The invention discloses building construction engineering wall building equipment, and particularly relates to the technical field of wall building auxiliary devices.The building construction engineering wall building equipment comprises a supporting base used for supporting, a wall building auxiliary mechanism is arranged on the supporting base, and the wall building auxiliary mechanism comprises two reinforcing conveyor brackets which are arranged side by side and used for supporting; the two reinforcing conveyor brackets are both arranged on the top of the supporting base. According to the device, a reference line body can be provided during wall building and brick paving through corresponding cooperative use of all structures, deviation is avoided, wall building materials are conveyed and transferred during use, bricks are jacked up through traction force generated during displacement of the material pushing plate, the wall building materials can be conveniently lifted, the device is ...

Method for simply synthesizing alpha-bromomethyl ketone compound

The invention discloses a method for simply synthesizing an alpha-bromo-methyl ketone compound, which is used for preparing the alpha-bromo-methyl ketone compound by using oxygen or pure oxygen in air as an oxidant and an oxygen source and 1, 1, 2, 2-tetrabromoethane as a solvent and a bromine source under ultraviolet irradiation. Compared with the existing method, the method does not need to use a photosensitizer and an additive, and has the advantages of mild reaction conditions, environmental friendliness, stable reaction process conditions, low cost, simple post-treatment, easiness in product purification and simplicity, convenience and safety in operation, 1, 1, 2, 2-tetrabromoethane can be recycled, and a new path is provided for preparation of the alpha-bromomethyl ketone compound.

MEDIA CONTENT DISPLAY METHOD AND SYSTEM APPLIED TO SOCIAL PLATFORMS

The present invention relates to the technical field of computers, and disclosed are a media content display method and system applied to social platforms. The method comprises: detecting an input operation aiming at dynamic areas located around a media content display area; and responding to the operation, and according to the layout direction of a media content loaded in the media content display area, scrolling and displaying the media content in the media content display area; wherein the width of the media content in the direction perpendicular to the layout direction of the media content is consistent with that of the media content display area. The embodiments of the present invention do not need to intercept the media contents or display clear and complete pictures through large picture floating layers, so that the workload of the system can be effectively reduced.

Electromagnetism algae killing device and system

... 本实用新型公开了一种电磁水藻杀灭装置及系统，涉及水处理装置技术领域。所述装置包括变频主控板、控制模块和水藻杀灭组件，所述控制模块与所述变频主控板的信号输入端连接，用于控制所述变频主控板通过滤波整流将220V/50Hz的工频电转换为60KHz以上的高频电；所述水藻杀灭组件包括磁场发生器和电磁线圈，所述电磁线圈与所述变频主控板的高频电输出端连接，所述电磁线圈缠绕于所述磁场发生器的外周，所述磁场发生器的内部设有杀藻水管，所述杀藻水管的两端延伸至所述磁场发生器的外侧。所述装置通过产生电磁场对水体内的藻类进行杀灭，具有结构简单环保，成本低，杀灭效果好的特点。 ...

Food material processing method and device, electronic equipment, refrigerator and storage medium

According to the food material processing method and device, the electronic equipment, the refrigerator and the storage medium, the image information of the food materials in the refrigerator is obtained, and the food materials and the attribute information of the food materials are determined based on the image information; outputting the food materials and the attribute information of the food materials to a user, so that the user selects whether to share the food materials or not; and under the condition that the user selects to share the food materials, the food materials are shared to a social network based on the sharing mode selected by the user, so that the food materials are replaced or transacted through the social network, other users can transact or exchange the food materials through the social network, and thus waste of the food materials can be reduced.

Rapid plugging device and method for gushing water of new and old underground diaphragm wall joint

The invention discloses a new and old underground diaphragm wall joint sudden gushing water rapid plugging device and method.The device comprises plugging plates, supporting plates, connecting pieces and elastic pieces, the plugging plates are arranged between the supporting plates and are telescopic, the connecting pieces are arranged between the plugging plates, the two ends of each connecting piece are connected with the plugging plates, the connecting pieces are connected through the elastic pieces, and the elastic pieces are arranged between the connecting pieces. The elastic piece drives the leaking stoppage plate to stretch through the connecting piece; the method comprises the steps of early-stage preparation work; by pressing the connecting piece in the device, the elastic piece is shrunk to drive the leaking stoppage plate to shrink, and then the shrunk device is aligned with the water gushing position of the joint to be put in; the position of the device is adjusted, the connecting ...

Automatic centering and limit detection method and system

The invention relates to the field of automatic control, and discloses an automatic centering and limit detection method and system, the method is applied to automatic centering and limit detection of a rotary table, and the method comprises the following steps: determining a centering position of the rotary table; acquiring position information of the rotary table; judging whether the turntable is located at a centering position according to the position information; if not, the rotary table is controlled to move towards the centering position. The turntable is controlled to automatically center, so that the manual centering difficulty of an operator is reduced, and the centering is more accurate, efficient, rapid and safe.

Chip packaging structure with temperature sensor and manufacturing method thereof

The invention provides a chip packaging structure with a temperature sensor and a manufacturing method of the chip packaging structure. The chip packaging structure comprises a chip body and the temperature sensor. An active area is arranged in the middle of the chip body, a terminal area is arranged outside the active area, and the terminal area is arranged around the active area; the chip body comprises a transistor and a passivation layer arranged on the transistor, the temperature sensor comprises a sensor body and a sensor electrode connected with the sensor body, the sensor electrode is connected to the passivation layer, and the sensor body is arranged in the terminal area and arranged on the passivation layer. The temperature sensor is integrated in the chip, accurate monitoring of the temperature of the chip can be achieved, in addition, the temperature sensor is integrated on the passivation layer of the terminal area, the area of an active area is not occupied, the original electrical ...

Robot zero-point rapid recovery tool

The invention relates to the field of robot zero-point rapid recovery, in particular to a robot zero-point rapid recovery tool. The robot joint mechanism comprises an upper-stage connecting rod and a lower-stage connecting rod which are connected with each other, a first positioning feature, a direction mark and a zero position mark which are used for positioning the tool assembly are arranged on the upper-stage connecting rod, and a second positioning feature which is used for positioning the tool assembly is arranged on the lower-stage connecting rod. The tool assembly comprises a rotary pointer seat which is positioned and installed at the positioning feature position of the upper-stage connecting rod in a magnetic attraction or screw connection mode, and a fixed ball cup which is positioned and installed at the positioning feature position of the lower-stage connecting rod in a magnetic attraction or screw connection mode. The double-spherical-surface connecting rod is connected to ...

Method for detecting related substances of teprenone capsule

The invention provides a method for detecting related substances of a teprenone capsule, and belongs to the technical field of pharmaceutical analys.According to the method, a high performance liquid chromatography method is adopted, acetonitrile and water are used as mobile phases, and two related substances which are not detected and controlled by a method at present in the teprenone capsule are detected. The related substances are teprenone mono-cis isomers 5E, 9E and 13Z and teprenone mono-cis isomers 5E, 9Z and 13E; and then the total amount is calculated by adopting an area-based normalization method and specified to be not more than 0.2%, so that the quality standard of the product is perfected, the product quality is controllable, and the safety and effectiveness of the product are ensured.

Energy-saving ventilation system

The invention relates to an energy-saving ventilation system, which belongs to the technical field of ventilation control, and is characterized in that an indoor layout design drawing of a current target area is acquired, and an environment perception monitoring network is constructed according to the indoor layout design drawing of the current target area; the method comprises the following steps: acquiring environment perception data of each sub-region in a target region through an environment perception monitoring network, fusing the environment perception data of each sub-region in the target region to construct a digital twinborn model, and acquiring real-time environment data information of each region based on the digital twinborn model, according to the real-time environment data information of each area, the area where air conditioner regulation and control are to be carried out is generated, and ventilation regulation and control are carried out according to the area where air ...

Archive warehousing management method and system

The invention provides an archive warehousing management method and system, and belongs to the field of data processing, and the method comprises the steps: collecting an archive image; preprocessing the archive image to obtain a preprocessed archive image; performing layout recognition on the preprocessed file image, and determining the type of the file; based on the type of the archive, performing target area positioning and character recognition on the preprocessed archive image to obtain archive information; the warehousing label is generated based on the archive information, and the method has the advantages that the information of the warehousing archives is automatically extracted and recorded, and the warehousing efficiency is improved.

CURABLE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE, ADHESIVE TAPE AND ADHESIVE PRODUCT

A curable composition, a pressure-sensitive adhesive, an adhesive tape and an adhesive product, belonging to the technical field of pressure-sensitive adhesives, and which can solve the problem that the anti-dropping performance of existing pressure-sensitive adhesives is insufficient. The curable composition comprises: a monomer component comprising at least two polymerizable monomers, the polymerizable monomers comprise non-tertiary-alcohol (methyl) acrylate monomers and acid-functional non-ester unsaturated monomers having at least one olefinic bond; and at least one block copolymer, the block copolymer belongs to an elastomer, which comprises at least two A blocks located at two ends respectively and at least one B block located in the middle; and wherein the A block is formed by polymerizing methacrylate monomers, and the B block is formed by polymerizing acrylate monomers.

Hydrophobically modified ceramic membrane device for seawater desalination and modification method thereof

The invention relates to the technical field of seawater desalination with ceramic membranes, and particularly discloses a hydrophobically modified ceramic membrane device for seawater desalination and a modification method thereof.The ceramic membrane device comprises a seawater heating device, a modified ceramic membrane separation device and a steam liquefaction device, and the modified ceramic membrane separation device comprises a separation tank and a sealing cover; a first annular baffle is concentrically arranged at the bottom of the separation tank, an annular modified ceramic membrane is arranged in the first annular baffle, a plurality of steam channels penetrating up and down are uniformly formed in the annular modified ceramic membrane, and an airflow inlet hole and an airflow outlet hole which are communicated with each steam channel are formed in the upper end and the lower end of the annular modified ceramic membrane respectively; according to the ceramic membrane device ...

Liquid-phase synthesis method of conotoxin

The invention provides a liquid-phase synthesis method of conotoxin, which takes 2, 6-di (octadecyloxy) benzyl alcohol as a carrier, and comprises the following steps: activating Fmoc-Cys (MeBzl)-OH serving as an initial amino acid, and performing esterification condensation on the initial amino acid and the carrier to form Fmoc-Cys (MeBzl)-shs; the shs-conotoxin linear peptide is characterized in that the shs-conotoxin linear peptide is subjected to condensation with activated Fmoc-Cys (Acm)-OH after an Fmoc protecting group is removed, the shs-conotoxin linear peptide is subjected to condensation with other Fmoc-amino acids after the Fmoc protecting group is continuously removed, the protected shs-conotoxin linear peptide is obtained, Cys3 and Cys15 are protected by a Trt group, Cys4 is protected by an Acm group, and Cys10 is protected by a MeBzl group; cracking the protected shs-conotoxin linear peptide, sequentially removing the protecting groups Trt, Acm and MeBzl of Cys, and carrying ...

Thermal simulation method and system for driver, computer equipment and storage medium

The invention discloses a driver thermal simulation method and system, computer equipment and a storage medium. The method comprises the steps that a three-dimensional simulation model of a driver and a parameter set corresponding to the driver are acquired; simplifying the three-dimensional simulation model of the driver into at least one three-dimensional model; and based on the parameter set, performing finite element thermal analysis on the grid region in the three-dimensional model through a preset finite element analysis model to obtain a temperature distribution result of the driver output by the preset finite element analysis model. And obtaining a temperature distribution result of the driver output by the preset finite element analysis model. According to the method, the modeling difficulty of a traditional thermal analysis mode is reduced, the calculation efficiency is improved, data support can be further provided for thermal field analysis of the simulator, and support is provided ...

ACCESS CONTROL METHOD AND DEVICE FOR REMOTE TERMINAL, TERMINAL, AND BASE STATION

The present invention provides an access control method and device for a remote terminal in D2D communications, terminal, and base station. The access control method for a remote terminal in D2D communications comprises: upon receiving of an access request sent by a remote terminal, determining whether the number of terminals having an access reaches a predetermined number, and determining whether a remaining amount of time-frequency resources for resource scheduling for remote terminals is smaller than or equal to a predetermined resource amount; if the number of terminals having an access is determined to reach the predetermined number, and/or the remaining amount is determined to be smaller than or equal to the predetermined resource amount, then rejecting the access request of the remote terminal; and if the number of terminals having an access is determined to be less than the predetermined number, and the remaining amount is determined to be greater than the predetermined resource ...

DATABASE SYSTEM, AND METHOD AND DEVICE FOR QUERYING DATABASE

Disclosed by the present invention are a database system, and a method and device for querying a database, the system comprising: a main database, at least one secondary database and a query processing unit, the main database being in data connection with the secondary database, and the secondary database being in data connection with the query processing unit; the query processing unit is used to split a query request into a query operation instruction the query scope of which has no intersection, send the split query operation instruction to the same or different secondary databases to perform a query operation, and feedback a query result. The present application may provide efficiency in querying.

Boiler heat exchange pipeline capable of recycling dissipated heat energy

The heat exchange pipeline comprises an in-boiler finned tube and an out-boiler heat preservation and insulation tube which are connected in sequence, the in-boiler finned tube is arranged in a heat exchange cavity in the boiler and comprises a tube body and fins, the fins are evenly arranged outside the tube body, and the heat preservation and insulation tube is arranged between the tube body and the fins. The heat insulation pipe outside the boiler is arranged outside the boiler, the heat insulation pipe outside the boiler comprises an inner pipe, a heat insulation cotton layer, a heat energy recovery pipeline layer and a protective outer pipe which are sequentially arranged from inside to outside, and an upper half pipe and a lower half pipe of the protective outer pipe are connected through a locker in a fastened mode. The heat energy recovery pipeline layer is composed of heat energy recovery pipes, and the heat energy recovery pipes are arranged around the heat preservation face layer ...

Vacuum precooling device for low-temperature cooked meat product production

The invention relates to the field of food processing, in particular to a vacuum precooling device for producing low-temperature cooked meat products. The device comprises a bottom frame, a closed circular frame, an opening and closing door, a vacuum pump and the like, a closed round frame is fixedly connected to the top of the bottom frame, an opening and closing door is connected to the middle of the closed round frame through hinges, and a vacuum pump is fixedly connected to the bottom of the closed round frame. Two iron sliding annular frames are driven by a transmission clamping column to move in the direction close to each other, cooked meat is clamped by the iron sliding annular frames, in the process that a supporting rocker arm moves downwards along a slotting round frame, the iron sliding annular frames and the supporting rocker arm rotate by 180 degrees, water on the surface of the cooked meat cannot directly drip, and the cooked meat can be conveniently cleaned. Water on the ...

Heavy-load radial tire body cord thread compression model and analysis and design optimization method

The invention relates to the technical field of optimal design of tires, in particular to a heavy-load radial tire body cord thread compression model and an analysis and design optimal selection method. The method comprises the following steps: obtaining a strain distribution result, obtaining maximum compression strain values, and comparing multiple groups of maximum compression strain values. An area with a negative strain distribution result is defined as the material behavior of a pressed area of the tire body cord thread, and the absolute value of the negative value is the compression strain value of the tire body cord thread; the position of the maximum compression strain value in the strain distribution result is the initial point of the ring part hollowing damage; and selecting the design scheme with the minimum maximum compression strain value by comparing the maximum compression strain value of the tire body cord in the strain distribution result. Through an optimal design scheme ...

Micro-display eyepiece lens

The invention provides a micro-display eyepiece lens, which comprises three spherical glass lenses, namely a human eye position, a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5) and a sixth lens (L6) from an observation side to an image source side along an optical axis in sequence, the first lens, the second lens and the third lens respectively comprise an image side surface which faces the observation side and enables imaging light to pass through and an object side surface which faces the image source side and enables the imaging light to pass through; the first lens, the second lens and the third lens of the eyepiece lens meet the following requirements: Nd1 is equal to 1.7552, Nd2 is equal to 1.6204, and Nd3 is equal to 1.4875; wherein Nd1, Nd2 and Nd3 respectively represent the refractive indexes of the first lens, the second lens and the third lens on the d line. According to the micro-display eyepiece lens, the plano-concave lens and ...

Wet curtain odor removal and sterilization method and electrical equipment

The invention provides a wet curtain deodorizing and sterilizing method and electrical equipment, which are used for deodorizing and sterilizing a wet curtain in the electrical equipment, and the electrical equipment at least comprises a control module, and an ozone generator, a wet curtain and a fan assembly which are electrically connected with the control module, the wet curtain deodorizing and sterilizing method comprises the following steps: when a user starts electrical equipment and selects a working mode of the electrical equipment, the electrical equipment enters a pretreatment stage; controlling the ozone generator to work for a first preset duration T1 so as to generate ozone; the ozone generator is controlled to be turned off, and the fan assembly is controlled to work for a second preset duration T2 at the first rotating speed R1; and controlling each load of the electrical equipment to work according to the working mode selected by the user until the operation is finished, ...

High-energy-density fast-charging lithium ion battery negative electrode material and preparation method thereof

The invention discloses a high-energy-density fast-charging lithium ion battery negative electrode material and a preparation method thereof, and relates to the technical field of lithium ion battery material preparation. The high-energy-density fast-charging lithium ion battery negative electrode material is of a core-shell structure; an inner core is carbon nanotube doped natural graphite, and a shell is phosphorus doped amorphous carbon; and the phosphorus-doped amorphous carbon accounts for 5-15 wt% of the high-energy-density fast-charging lithium ion battery negative electrode material. According to the invention, the catalyst is infiltrated into the pores of the natural graphite, and the carbon nanotubes are grown on the basis of the catalyst to form a network structure to reduce expansion, and the characteristic of high electronic conductivity of the carbon nanotubes is utilized to reduce impedance and improve power performance. Graphite is soaked in a resin solution of phosphoric ...

METHOD FOR SYNCHRONIZATION BETWEEN PRIMARY DATABASE AND STANDBY DATABASE, DATABASE SYSTEM AND DEVICE

Disclosed in the embodiments of the present application are a method for synchronization between a primary database and a standby database, a database system and a device. The method comprises: a primary database acquiring, in response to a transaction commit request, the log difference between transaction logs of the primary database and transaction logs which have been synchronized to the standby database; if the log difference is greater than a first threshold, suspending a transaction commit operation; and if the log difference is less than or equal to the first threshold, executing the transaction commit operation.

Fractional crystallization reactor for forced circulation of wastewater

The invention relates to a fractional crystallization reactor for forced circulation of wastewater, which comprises a reaction body, the reaction body comprises a water outlet, a separator, a swinging radial plate, a crystallization granulation area and a grading chamber from top to bottom, the side surface of the crystallization granulation area is connected with a water inlet pipe and a dosing pipe, and the bottom is provided with a separation plate with a small upper part and a large lower part; a disturbance device is arranged in the grading chamber and used for disturbing solid particles in the grading chamber, so that small-particle solids float upwards, and large-particle solids sink; a forced circulation device is arranged outside the reaction body and comprises a suction pipe, a high-pressure pump, a drainage pipe and a plurality of parallel pressurizing rings which are connected in sequence; the suction pipe is connected with the middle upper part of the grading chamber and is ...

Wind power full-autonomous inspection system and method thereof

The invention discloses a wind power full-autonomous inspection system and method, and the method comprises the steps: obtaining the inspection original path parameters of inspection equipment through an inspection module, collecting the natural environment data of an area where the inspection equipment is located in a static state of the inspection equipment, and constructing a pneumatic model database; the inspection mode switching module is used for preprocessing natural environment data of an area where the inspection equipment is located collected by the inspection equipment to obtain effective data of the natural environment where the effective inspection equipment is located, comparing the collected real-time coordinate data of the inspection equipment with the inspection original path parameters of the inspection equipment to obtain a real-time inspection coordinate error, and sending the real-time inspection coordinate error to the inspection equipment; a new inspection path is ...

干馏焚化炉

... 本发明涉及一种用于人或动物尸体焚化的干馏焚化炉，由炉体、电加热器及控制装置组成，特征是炉体的内腔由密闭腔和干馏腔两部份组成，在密闭腔的上方设有活塞，活塞的下部及干馏腔外侧设有微波加热器，干馏腔底部设电加热器，干馏腔下边残渣出口的上方连接有气灰输送管，并连通至气灰分离器，干馏腔上部管口与氧气管道、压力空气管道相连通，调温水箱的出水管道和气灰分离器的出气管道接至水池，这种干馏焚化炉，焚化物燃烧完全，干净、快捷，无烟尘排放，满足了安全、环保的要求。 ...

METHOD FOR EXTRACTING AND SEPARATING ZIRCONIUM AND HAFNIUM FROM NITRIC ACID MEDIUM

A method for extracting and separating zirconium and hafnium from a nitric acid medium, mainly comprising: extracting an acid feed liquid of a zirconium compound by means of a synergic extraction system consisting of DIBK and a phosphonic acid extracting agent; and putting zirconium into an aqueous phase, and putting hafnium into an organic phase to implement separation. The entire process requires no toxic substance.

Modularized mainboard test fixture

The invention relates to a modular mainboard test fixture, and belongs to the technical field of server detection, the modular mainboard test fixture comprises an upper die and a lower die which are connected together, the upper die comprises an upper frame, a probe mounting plate is arranged in the upper frame, a plurality of probe mounting holes distributed in a matrix are formed in the probe mounting plate, and test probe modules are detachably mounted in the probe mounting holes; the test probe module comprises a plurality of test probes, mold closing probes are arranged at four corners of the probe mounting plate, the lower mold comprises a lower frame, a carrier plate is arranged in the lower frame, probe penetrating holes are formed in four corners of the carrier plate, and the probe penetrating holes correspond to the mold closing probes in position. According to the invention, the types and positions of the test probes of the jig can be adjusted according to use requirements, and ...

Biological promoter and application thereof in high-salinity wastewater treatment

The invention discloses a biological promoter and application thereof in biochemical treatment of high-salinity wastewater. The biological accelerant is prepared from the following components in parts by mass: 200 to 500 parts of potassium chloride, 100 to 200 parts of mineral source potassium fulvate, 100 to 200 parts of corn steep liquor dry powder, 100 to 200 parts of molasses dry powder, 50 to 200 parts of salt-tolerant yeast extract powder and 0 to 200 parts of betaine. The biological promoter is applied to a high-salinity wastewater biochemical system with the salinity of 1%-20%, and the salt resistance, the salinity impact resistance, the pollutant degradation efficiency and the operation stability of the biochemical system can be remarkably improved.

Protein separation special precision ultrafiltration membrane and preparation method thereof

The invention relates to the technical field of composite materials, and discloses a special precise ultrafiltration membrane for protein separation and a preparation method thereof.The preparation method comprises the following steps that S1, polyether sulfone, zinc oxide, glycerol, acetone and a solvent are added into a reaction kettle to be prepared into a mixed solution, and the mixed solution is stirred and heated; s2, uniformly stirring the mixed solution prepared in the step S1, and performing vacuum defoaming treatment to prepare an ultrafiltration membrane casting solution; s3, extruding the membrane casting solution in the step S2 from an annular spinning nozzle through a metering pump, introducing air with temperature and humidity into an inner cavity of the annular spinning nozzle, entering a gel tank, performing split-phase curing molding to form a hollow fiber membrane, and performing traction and rolling to obtain the nascent state polyether sulfone hollow fiber ultrafiltration ...

METER DATA READ METHOD AND SYSTEM

Provided are a meter data read method and system, the method comprising: after a current data image of a meter to be read is obtained, controlling the current data image to rotate in a first direction, and obtaining current projection values on a vertical direction of a meter pointer in the current data image; then, selecting a maximum projection value from the obtained projection values, determining a position of the meter pointer corresponding thereto as a position to be calculated; after a first rotation angle that needs to be rotated by the meter pointer when the meter pointer rotates to the position to be calculated is calculated, substituting the first rotation angle into a pre-stored first calculation formula, calculating a first angle between the meter pointer and the position to be calculated; then, substituting the first angle into a correspondence relationship between an angle between a pre-stored meter pointer and the position to be calculated and meter graduation, calculating ...

Device for generating mode locking ultraviolet laser

... 本实用新型公开了种锁模紫外激光器的产生装置，包括泵浦光源、谐振腔单元、倍频单元和输出单元，泵浦光源输入至谐振腔单元后，产生的1064nm锁模激光射入倍频单元，经过三硼酸锂晶体二倍频与三倍频的参量转换后得到355nm激光，最后由输出单元进行光束质量的调制，得到高质量的锁模紫外激光。本实用新型采用掺钕钒酸钇晶体为工作物质性能优良，对泵浦光有较高的吸收系数和更大的受激发射截面，与三硼酸锂晶体配合使用，能够达到较好的倍频转换效率；同时应用半导体可饱和吸收镜提供锁模的自启动机制，可以制成紫外锁模激光器。此激光在经BBO晶体后自发参量下转换得到轨道角动量纠缠态，可应用于量子通信领域在轨道角动量纠缠的制备。 ...

Mainboard FCT test device

The embodiment of the invention provides mainboard FCT test equipment. The mainboard FCT test equipment comprises a first conveying device; the first conveying device penetrates through the first testing machine body; a second conveying device; the second conveying device penetrates through the second testing machine body; a good product conveying device; and the transition mechanism is located at the intersection of the conveying tail end of the first conveying device, the conveying head end of the second conveying device and the conveying head end of the non-defective product conveying device, and conveys the mainboard conveyed by the first conveying device to the second conveying device or the non-defective product conveying device according to the test result. According to the method and the device, the problem of product waste caused by accidental injury during mainboard function testing in the related art is solved.

Cast-in-place pile construction platform based on port engineering

The invention provides a cast-in-place pile construction platform based on port engineering, and belongs to the technical field of port construction, the cast-in-place pile construction platform comprises a platform body and a stand column connected with the bottom of the platform body, and further comprises a first limiting ring, a second limiting ring and a rotary supporting mechanism; the first limiting ring is arranged on the platform body; the first limiting ring comprises two first semi-rings which can be spliced into an annular structure; the second limiting ring is arranged right above the first limiting ring; the second limiting ring comprises two second semi-rings which can be spliced into an annular structure; the rotary supporting mechanism is arranged on the first half ring and has the degree of freedom of rotating around the axis of the first half ring; the rotary supporting mechanism is connected with the second half ring, and the second half ring and the rotary supporting ...

VIDEO TRANSCODING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Provided in the embodiments of the present application are a video transcoding method and apparatus, an electronic device, and a storage medium, the method comprising: acquiring a plurality of GOP intervals of a video to be transcoded and a set transcoding GOP interval; if the plurality of GOP intervals meet a preset difference condition, then determining a source GOP interval on the basis of the plurality of GOP intervals; on the basis of the size relationship of the source GOP interval and the transcoding GOP interval, determining a target GOP interval; and using the target GOP interval to transcode the video to be transcoded to obtain a transcoded video. Taking into account the source GOP interval when determining the target GOP interval enables adaptation to the transcoding of different videos with different source GOP intervals. The quality of the transcoded video is improved relative to video transcoding methods in the prior art that use a preset fixed GOP interval.

Optically active interference measurement device in whirlpool

... 本实用新型公开了种涡旋光的干涉测量装置，包括：涡旋光产生单元、控制单元、涡旋光调制单元、共轭涡旋光干涉单元和图像采集单元。涡旋光产生单元用于产生涡旋光束；控制单元用于改变涡旋光的传播光路；涡旋光调制单元用于对涡旋光束的拓扑荷进行调制；共轭涡旋光干涉单元用于将束涡旋光分成两束，并将其中束涡旋光转化为另束的共轭涡旋光，然后对两束光进行干涉；图像采集单元用于对两束共轭涡旋光的干涉强度图进行采集，通过对采集数据进行分析从而可以获得涡旋光拓扑荷的阶数和符号。本实用新型利用改进的M‐Z干涉仪和携带有涡旋相位板VPP的方形环路装置提出了种简单的没有器件引入干涉影响的整数和半整数拓扑荷干涉测量装置。 ...

VIDEO PLAYBACK METHOD AND APPARATUS

A video playback method and apparatus, for use in solving the problem that text information displayed in the prior art cannot summarize video content well, thereby affecting user experience. In the present application, a terminal device sends a first request for requesting a video address needing to be played back by the terminal device to a server, and receives a first response sent by the server, wherein the first response comprises the video address and dotting information of a video, and the dotting information comprises a dotting position of the video and a storage address of a video clip corresponding to the dotting position; the terminal device acquires the video according to the video address, and loads a corresponding video clip on the dotting position according to the storage address of the video clip corresponding to the dotting position; after loading the video clip, when the terminal device can also display the video clip corresponding to the dotting position of the video when ...

Photoelectricity drinking water purifies magnetization boiling water system

... 本实用新型公开了一种光电饮用水净化磁化开水系统，涉及太阳能集热器技术领域。包括太阳能集热器、储热水胆、电磁加热水胆和集热水箱。所述太阳能集热器通过循环管道进水管和循环管道出水管与所述储热水胆相连通，所述储热水胆内设有换热水胆，所述储热水胆上设有与所述换热水胆相连通的第一冷水进管，所述储热水胆上还设有一端与所述换热水胆相连通，另一端与所述电磁加热水胆相连通的第一连接管，所述电磁加热水胆上设有第二冷水进管和第二连接管，所述电磁加热水胆与集热水箱之间通过所述第二连接管相连通。所述系统具有烧水时间短，光电互补，节约能源，具有杀菌消毒和磁化作用以及使用方便的特点。 ...

Double-network polymer hydrophilic modification method of high-water-flux corrosion-resistant PTFE hollow fiber membrane

The invention discloses a hydrophilic modification method for a double-network polymer of a high-water-flux corrosion-resistant polytetrafluoroethylene (PTFE) hollow fiber membrane. The hydrophilic modification method comprises the following steps: step 1, carrying out silane treatment on the surface of the PTFE hollow fiber membrane; step 2, dipping in a hydrophilic polymer polyvinyl alcohol/oxidized sodium alginate solution; step 3, dipping in an iron ion-containing solution; and step 4, balancing in water. According to the modification method disclosed by the invention, the water flux of the PTFE hollow fiber membrane can be remarkably improved, the modified dual-network hydrophilic polymer has high mechanical property and strong interfacial interaction with a PTFE base material, and the modified fiber membrane has strong corrosion resistance.

SEAT SLIDE RAIL

A seat slide rail comprising: an inner slideway (10); an outer slideway (20) sliding in harmony with the inner slideway (10); a retainer assembly (40) having wheels and provided between the inner slideway (10) and the outer slideway (20); a locking assembly (30) provided in a chamber of the inner slideway (10); a locking piece (31) of the locking assembly hinged at the middle portion to a side wall of the inner slideway (10); one terminal of the locking piece (31) having a lock fitting part (312) protruding perpendicularly from an opening arranged in the side wall of inner slideway (10); along the longitudinal direction of the slide rail, the lock fitting part is provided with lock holes or lock teeth, the outer slideway (20) having lock teeth matching the lock holes on the lock fitting part (312) or lock holes matching the lock teeth on the lock fitting part (312); the lock teeth or lock holes on the lock fitting part (312) or the outer slideway (20) are of a plurality; the locking piece ...

Sauce braised meat product processing production device and production method

The invention relates to the field of food processing, in particular to a sauce braised meat product processing production device and a production method. The device comprises a base, a mounting plate, a rotating ring, an L-shaped plate and the like, a mounting plate is fixedly connected to the upper side face of the base, a rotating ring is rotatably connected to the upper portion of the mounting plate, and an L-shaped plate is fixedly connected to the rotating ring. The circulating cylinder rotates to drive brine and precipitated spices in the strip-shaped groove to rotate, when the brine and the spices rotate to the upper side face of the upper screen, the brine and the precipitated spices fall down from the upper screen, and after the brine and the precipitated spices fall down, sauced meat is marinated, so that the sauced meat is marinated more uniformly and fully, and the quality of the sauced meat is improved. Therefore, the marinating effect of the sauced meat is better.

Device and method for adjusting pH value of anaerobic ammonia oxidation reactor on line

The invention aims to provide a device and a method for adjusting the pH value of an anaerobic ammonia oxidation reactor on line. The device comprises a pH sensor module, a pH detection device, a mobile sampling device and a carbon dioxide aeration pH value adjusting mechanism, the pH sensor module and the pH detection device are mounted at the top of a reaction box of the anaerobic ammonia oxidation reactor; a detection probe of the pH sensor module penetrates through the top wall of the reaction box and extends below the liquid level; a liquid inlet pipe of the pH detection device downwards penetrates through the top plate of the reaction box; a movable sampling device is arranged on the top wall in the reaction box, the movable sampling device is provided with a sampling pipe assembly capable of moving up and down and left and right, and the sampling pipe assembly is connected with a liquid inlet pipe through a hose; the carbon dioxide aeration pH value adjusting mechanism comprises ...

Pure passive type load-bearing exoskeleton robot and design method thereof

According to the design method of the pure passive type load-bearing exoskeleton robot, the load is transmitted to the ground through the design of the clutch mechanism, the influence of the external load on the human body can be effectively relieved, and the pure passive type load-bearing exoskeleton robot can be applied to the situations of load-bearing marching, fire rescue and the like and has wide application prospects.

Precipitation prediction method and system based on ensemble learning

The invention discloses a rainfall prediction method and system based on ensemble learning, and the method comprises the steps: obtaining prediction factors of a time period and an area which need rainfall prediction, and constructing a training set and a test set which are in time-space synchronization; respectively training three single machine learning models of a random forest, an XGBoost and an extreme random tree by using the training set through mutual cross validation, and performing linear regression on quantitative rainfall estimation results of the three single machine learning models to obtain weights of the three single machine learning models; performing weighted addition on quantitative precipitation estimation results of the three single machine learning models of the test set to obtain quantitative precipitation estimation based on ensemble learning; quantitative rainfall estimation based on ensemble learning is set as an initial estimation field, high-density automatic ...

Device and method for detecting internal firmware of program based on mirror image simulation environment

The invention relates to a program internal firmware detection device and method based on a mirror image simulation environment, and the device comprises an equipment monitoring module which is used for monitoring and recording the change condition of a hardware system, recognizing the monitored change condition, and transmitting the recognized change information of the hardware system to a control terminal; the firmware obtaining module is used for obtaining data information of firmware updating after firmware is changed; the mirror image firmware program construction module is used for receiving the firmware file data information intercepted by the firmware acquisition module and constructing a mirror image firmware program based on the firmware file data information, and the mirror image firmware program keeps synchronous with a firmware program in actual hardware; the simulation execution environment module simulates a simulated firmware execution environment based on the hardware parameters ...

Detachable tubular seawater desalination device

The invention relates to the technical field of seawater desalination devices, and particularly discloses a detachable tubular seawater desalination device. Comprising a condensation outer sleeve, an evaporation tank and a heat exchange pipe, one end of the condensation outer sleeve is sealed, a sealing ring is arranged on the inner wall of an opening in the other end of the condensation outer sleeve, and the lower end of the condensation outer sleeve is connected with a movable seat; a rotating disc aligned with the opening end of the condensation outer sleeve is rotationally connected into the vertical base, a sealing disc which extends into the opening of the condensation outer sleeve and is matched with the sealing ring is arranged on the side face of the rotating disc, and a driving piece for achieving rotation of the rotating disc is arranged on the movable base. The tubular seawater desalination device disclosed by the invention is simple and rapid in disassembly process, salt impurities ...

AC/DC hybrid power distribution system power coordination control method based on solid-state transformer

The invention relates to a power coordination control method for an AC/DC hybrid power distribution system based on a solid-state transformer, the system comprises a main network, the solid-state transformer and an AC/DC micro-grid, and the solid-state transformer is of a three-stage structure of a low-voltage stage, an isolation stage and a medium-voltage stage; the control method is composed of a low-voltage-stage control strategy, an isolation-stage control strategy, a medium-voltage-stage control strategy and a pre-synchronization control strategy. The low-voltage stage is associated with a low-voltage alternating-current frequency and a low-voltage direct-current voltage which represent the power state of the alternating-current and direct-current micro-grid, and power coordination between the alternating-current and direct-current micro-grids is realized without communication; the isolation stage and the medium-voltage stage enable the medium-voltage stage alternating-current frequency ...

Construction method of coastal nuclear power station cold source disaster-causing object alarm and early warning model

The invention relates to a construction method of a coastal nuclear power station cold source disaster-causing object alarm and early warning model, which comprises the following steps: establishing a tidal current field and disaster-causing object prediction model based on a wind field, and selecting representative organisms; fusing the cluster outbreak model, simulating the trajectory of the blockages, and predicting the motion trajectory and number of the blockages; and according to the positions of the real-time blockages in a certain range of the water intake, the warning areas from the blockages to the water intake and the number of the blockages from the blockages to the water intake are judged through a disaster-causing object motion trail model and fusion of a cluster outbreak model. Environmental data and biological growth outbreak are combined to provide an important basis for estimating the number of biological outbreak, the model prediction accuracy and sensitivity are improved ...

Feeding device applied to suspension roller type ring roller flour mill

The utility model provides a feeding device applied in a suspension roller type ring roller flour mill, which comprises a flour mill body, the flour mill body comprises a flour mill shell, a driving motor, a plum blossom rack, four grinding roller shafts, four grinding rollers, a grinding ring and four scraper knives, and the side end of the flour mill shell is connected with a material conveying pipeline. The driving motor is fixedly installed at the bottom end in the flour mill shell, an output shaft of the driving motor is connected with a driving shaft, the plum blossom frame is fixedly connected with the upper end of the driving shaft, the four grinding roller shafts are distributed on the plum blossom frame in a rectangular array mode, the grinding roller shafts are rotationally arranged on the grinding roller shafts in a sleeving mode, and the grinding ring is fixedly installed on the inner wall of the bottom of the flour mill shell and located below the plum blossom frame. The four ...

Ceramic membrane surface grafting modification experimental equipment and method

The invention relates to the technical field of ceramic membrane treatment, in particular to ceramic membrane surface grafting modification experimental equipment and method.The ceramic membrane surface grafting modification experimental equipment comprises a cleaning unit and a drying unit, the cleaning unit comprises a cleaning box, and the interior of the cleaning box is divided into an ultrasonic cleaning area, an ethanol cleaning area and a pure water cleaning area through two partition plates; a plurality of ultrasonic transducers are arranged at the bottom of the ultrasonic cleaning area, and a storage rack for arranging sample pieces at intervals is arranged in the ultrasonic cleaning area above the ultrasonic transducers; according to the experimental equipment disclosed by the invention, a plurality of sample pieces are dried and heated at the same time by utilizing the drying circulating material rack, the requirements of a ceramic membrane hydrophobic modification design orthogonal ...

Container for garrison and personnel hiding maneuver

According to the container for garrison and personnel hiding and maneuvering, an existing container is improved, so that long-distance hiding and maneuvering of operation team personnel can be achieved, and hidden transportation can be conducted directly through a cold chain transport vehicle and a freight ship. A heat preservation layer is arranged on the inner wall of a shell of the container for garrison and personnel hiding maneuvering. The length direction of the container is longitudinal, and the width direction of the container is transverse; the interior of the container is divided into five areas in the longitudinal direction, namely the area A, the area B, the area C, the area D and the area E; the area A is an energy cabin, and a battery pack, an air conditioner, a cold and hot air pipe machine and a power management system are arranged in the area A; the area B is further transversely divided into two cabins, namely a washroom and a storage room; the area C is further divided ...

Gear recognition system and method

The invention provides a gear recognition system and method. The gear recognition system is applied to a vehicle and comprises a direct-current converter, an analog-to-digital converter and a programmable logic controller (PLC) which are connected in sequence. Wherein the input end of the direct-current converter is connected with a neutral gear sensor of a vehicle, and the direct-current converter is used for converting PWM signals into direct-current voltage signals according to each path of PWM signals in two paths of PWM signals output by the neutral gear sensor; the analog-to-digital converter is used for converting the direct-current voltage signal into a digital signal to obtain a current value corresponding to the PWM signal; the PLC is used for acquiring the duty ratio of the PWM signal for each path of PWM signal based on the current value of the PWM signal and a pre-acquired relation curve between the current value corresponding to the PWM signal and the duty ratio; the PLC is ...

Soluble microneedle loaded with acellular fat extract as well as preparation method and application of soluble microneedle

The invention discloses a soluble microneedle loaded with an acellular fat extract as well as a preparation method and application of the soluble microneedle, and belongs to the field of medical repair materials. The treatment effect of the soluble microneedle (CEFFE-MNs) loaded with the cell-free fat extract on the tendinopathy is evaluated through a series of in-vivo and in-vitro experiments, and the result shows that the CEFFE-MNs not only can effectively inhibit oxidative stress and apoptosis degree of tendon injured cells, but also can effectively inhibit inflammatory response and promote generation of collagenous fibers, and can be used for preparing the soluble microneedle-MNs loaded with the cell-free fat extract on the tendinopathy. The tensile modulus and the maximum mechanical strength of the injured tendon can be obviously recovered. The CEFFE-MNs provided by the invention has the advantages of low immunogenicity, low cytotoxicity, high biocompatibility and the like, enters ...

Substation oblique photography and design model comparison method for engineering carbon measurement

The invention provides a transformer substation oblique photography and design model comparison method for engineering carbon measurement. The method comprises the following steps: extracting random points on the surface of a building information model according to the area weight of a triangular plate; calculating geometric similarity by using a difference measurement mode of object elements; performing similarity combination on the model components by combining a linear weight method; establishing an index for point cloud coarse registration based on a super four-point congruent set algorithm; performing coarse registration on the point cloud data of the two models through a principal component analysis method; performing fine registration on a point cloud coordinate system of the building model based on a point cloud nearest point iterative algorithm; calculating the position similarity of the model components by using the Euclidean distance between the similar components; component ...

Hydrogen matrix membrane bio-membrane reactor system and method for treating 4-bromophenol in three-stage industrial wastewater

The invention belongs to the technical field of sewage treatment, and provides a hydrogen matrix membrane bio-membrane reactor system and a method for treating 4-bromophenol (4-BP) in three-stage industrial wastewater. In the system provided by the invention, the first hydrogen matrix membrane reactor (2) and the second hydrogen matrix membrane reactor (3) are vertically arranged in parallel, so that the reaction efficiency of the hydrogen matrix membrane reactors is improved. When the system is used for treating 4-BP in three-stage industrial wastewater, the 4-BP can be in full contact with hydrogen matrix biological membranes in the first hydrogen matrix membrane reactor and the second hydrogen matrix membrane reactor, and the high-concentration 4-BP can be reduced into a non-toxic product by the hydrogen autotrophic reducing bacteria, so that the aim of efficiently, greenly and safely removing the 4-BP is fulfilled; and the economic cost is greatly reduced. Furthermore, due to the structural ...

Offshore ship trajectory real-time prediction method, system and equipment based on CNN-GRU and attention mechanism and medium

The invention discloses an offshore ship trajectory real-time prediction method, system and device based on CNN-GRU and an attention mechanism and a medium, and the method comprises the steps: carrying out the preprocessing of ship AIS trajectory data obtained by a satellite, and obtaining a training set and a test set; constructing a trajectory prediction network based on deep learning; constructing a loss function MSE; setting network training parameters; training the constructed trajectory prediction network by using the obtained training set to obtain a training network model; performing recursive prediction; the system, the device and the medium are used for realizing the offshore ship trajectory real-time prediction method based on the CNN-GRU and the attention mechanism. According to the method, feature extraction is carried out on input time sequence trajectory data by using a CNN network, long-term features of the data are extracted by using a double-layer GRU network, an attention ...

Unsaturated soil diffusion coefficient testing device based on resistivity test

The invention discloses an unsaturated soil diffusion coefficient testing device and method based on resistivity testing. Before the test, the conductivity of the soil sample under different water contents and different solute concentrations is calibrated in advance. Preparing a soil sample with preset dry density, saturating the soil sample with water, putting the soil sample into a soil sample barrel, closing a solution inlet valve, applying small air pressure into an air pressure chamber to discharge redundant water in the saturation step, applying first-stage air pressure, recording the amount of water flowing out, and calculating the moisture content of the soil sample; and carrying out a diffusion test under the water content, opening a solution inlet valve, and fitting the concentration distribution in the soil sample at different moments to obtain the diffusion coefficient under the water content. And after the concentration distribution of the solution in the soil sample tends ...

Controller flashing method and device, electronic equipment and storage medium

The invention discloses a controller flashing method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a current bootstrap program version and a process instance; the current bootstrap program version is compared with a corresponding bootstrap program version in the process instance, a target bootstrap program is flashed according to a comparison result, and the target bootstrap program is a bootstrap program corresponding to the target bootstrap program version; and flashing the application program of the controller based on the target bootstrap program. The method comprises the steps of obtaining a current bootstrap program version and a process instance; the current bootstrap program version is compared with the corresponding bootstrap program version in the process instance, the target bootstrap program is flashed according to the comparison result, and the application program of the controller flashed based on the target bootstrap ...

Deep ultraviolet transparent sulfate crystal with large frequency-doubled effect as well as preparation method and application thereof

The invention provides a deep ultraviolet transparent sulfate crystal with a large frequency doubling effect. The chemical formula of the sulfate crystal is MxM'yM ''z (SO4) (x/2 + y/2 + z/2), M is selected from alkali metal, M'is selected from alkali metal or ammonium ions, and M' 'is selected from alkali metal or ammonium ions. The crystal is a deep ultraviolet transparent nonlinear optical crystal with a large frequency-doubled effect, has a short deep ultraviolet cut-off absorption edge, a wide light-transmitting wave band, a large frequency-doubled effect and stable physical and chemical properties, and is an excellent photoelectric functional crystal.

Treatment device and process for continuously preparing sodium salt from molten bisphenol A

The invention discloses a treatment device and process for continuously preparing sodium salt from molten bisphenol A. The molten bisphenol A is conveyed to a bisphenol A sodium salt reaction tank A/B by utilizing a bisphenol A conveying pump and is uniformly distributed through a feeding spray head; caustic soda and deoxygenated water are prepared into a caustic soda solution through a mixer, and the caustic soda solution and bisphenol A are fully mixed and reacted in a first tank; overflowing to a reaction tank II, and overflowing the reacted material to a bisphenol A sodium salt reaction tank III; the materials are conveyed to a bisphenol A sodium salt cooling cooler, and unqualified materials are conveyed to a first reaction tank. According to the invention, the stability and continuity of the reaction are ensured, so that the technological process and equipment structure between bisphenol A and polycarbonate are simplified, meanwhile, unmanned operation of the device on site can be ...

Adversarial sample generation method and device and computer readable storage medium

The invention belongs to the technical field of network security, and provides an adversarial sample generation method and device and a computer readable storage medium. Obtaining training data for building a time sequence anomaly detection model according to the industrial time sequence data; training a time sequence anomaly detection model by using the training data and the real training predicted value as input time sequence data; calculating a model training prediction value according to test data through the trained time sequence anomaly detection model, calculating an anomaly score between the model training prediction value and a real test prediction value, and determining a probability threshold value through a Gaussian distribution anomaly detection algorithm according to data distribution of the anomaly score; and performing variable disturbance calculation on the test data based on the time sequence anomaly detection model, adding disturbance to the test data, and generating ...

Coastal nuclear power station cold source disaster-causing object alarm and early warning intelligent system

The invention belongs to the technical field of nuclear power station external disaster early warning, and particularly relates to a coastal nuclear power station cold source disaster-causing object alarm early warning intelligent system which is used for nuclear power station cold source system disaster-causing object prediction early warning and comprises a data acquisition module (1), a data storage and management module (2), a disaster-causing object prediction model (3), an intelligent decision module (4) and a display module (5) which are connected in sequence. The system further comprises a space-time mining module (6) connected with the data storage and management module (2), the disaster-causing object prediction model (3) and the intelligent decision-making module (4). According to the system, related data such as environment, hydro meteorology, biological video and sonar monitoring are synchronously collected and fused through the Internet of Things technology, all early conditions ...

Pavement drainage device and drainage method

The invention relates to the technical field of road surface drainage, in particular to a road surface drainage device and a drainage method.The road surface drainage device comprises a supporting mechanism which comprises a frame arranged on a road surface and a well lid cover plate arranged on the frame; the collecting mechanism comprises a gathering assembly arranged on the frame and a dirt collecting assembly arranged on the gathering assembly, during use, impurities and dirt can fall into the storage piece under the guide of the grid hopper and fall onto the filtering piece after being guided by the flow guide piece, rainwater is drained from the drainage hole after being filtered, and the rainwater can be collected through the collecting assembly. Impurities and dirt are blocked by the filter screen and stay on the bent plate and in the storage frame, clogging in the underground pipeline is avoided, during cleaning, the well lid cover plate is lifted, the gathering assembly and the ...

Optical fiber vibration position measuring system and cable protection system

The invention relates to an optical fiber vibration position measuring system and a cable protection system. An optical fiber vibration position measuring system comprises an ASE broadband light source, an output optical fiber coupler, a first balance detector, a second balance detector, a first interferometer, a second interferometer, a first Faraday rotating mirror, a second Faraday rotating mirror and a sensing optical fiber. The beneficial effect of the invention is that the vibration position can be positioned. Initial driving signals detected by the first balance detector and the second balance detector and detected vibration signals have the same sine characteristics in the time domain, and the vibration signal recovery performance is good. The optical fiber vibration position measuring system is good in sensitivity and signal recovery performance, stable in positioning performance and high in positioning precision. The optical fiber vibration position measuring system is completely ...

Sealing glass and preparation method and application thereof

The invention provides sealing glass and a preparation method and application thereof, the sealing glass comprises MO, B2O3, Al2O3 and La2O3, and does not comprise a silicon element and an alkali metal element; wherein MO is an alkaline earth metal oxide and comprises CaO, SrO and BaO; the sealing glass is aluminborate glass which does not contain silicon and alkali metal, and does not contain alkali metal which reacts with titanium at high temperature, so that the sealing performance and the sealing strength are improved; the sealing glass does not contain silicon influencing the insulation performance of the positive electrode and the negative electrode of the battery, the insulation performance is improved, and meanwhile, the sealing glass is wide in sealing temperature range and high in chemical stability and glossiness.

Power transmission and transformation project slope water and soil conservation and water and soil micro-displacement monitoring device

The invention relates to a power transmission and transformation project slope water and soil conservation and water and soil micro-displacement monitoring device, and belongs to the technical field of water and soil displacement monitoring equipment.The power transmission and transformation project slope water and soil conservation and water and soil micro-displacement monitoring device comprises an assembly platform, the top end of the assembly platform is rotationally connected with a rotating mechanism, and one side of the rotating mechanism is connected with an angle changing mechanism; a displacement monitoring mechanism is arranged at the free end of the angle changing mechanism, and a machine body transferring mechanism used for driving the assembling platform to move is arranged at the bottom of the assembling platform. According to the invention, the time consumed by each time of equipment transfer is shortened, the damage of a plurality of assemblies caused by repeated disassembly ...