全景鱼眼摄像机

Method and system for evaluating reading ability of children

The invention provides a child reading ability evaluation method and system, and the method comprises the steps: receiving the input information of a user, displaying a preset reading material corresponding to the age, gender and language of a child, and prompting and guiding the child to sound to read the preset reading material; the method comprises the following steps: acquiring an audio record of children's sound reading, and extracting feature information of the audio record, the feature information comprising textual characters, tones corresponding to the textual characters, speed and lag points; comparing the textual characters with the textual characters of the preset reading material to obtain character reading accuracy and text misreading characters; tones corresponding to text characters in the feature information are compared with tones corresponding to characters of the preset reading material, and tone accuracy and tone misreading characters are obtained; and performing intelligent ...

Embedded software inter-task communication method and system based on message subscription and distribution

The invention discloses an embedded software inter-task communication method and system based on message subscription and distribution, and the method comprises the steps that when embedded software is initialized, each task module calls a message registration function to register a message needing to be subscribed so as to determine a message management linked list; when a message is generated, a message sending function places the message in a message queue of a target task module subscribing the message based on the message management linked list; and the message processing function of each target task module processes the messages stored in the corresponding message queue according to a preset task execution period so as to realize communication between embedded software tasks. The method based on message registration and message distribution is used for enabling the modules of the software to communicate without depending on a hardware chip and an operating system, so that the problem ...

Video alarm method based on dome camera and related device

The invention discloses a video alarm method based on a dome camera, and relates to the technical field of video monitoring, and the method comprises the steps: detecting the PTZ state of the dome camera, and maintaining a PTZ state sequence according to the detected PTZ state; the PTZ state sequence at least records the stay state of the dome camera and the duration of the stay state; analyzing the video stream in real time, and when alarm data is generated according to the video stream, querying a PTZ state sequence according to the moment when the alarm data is generated; and if the duration of the stay state recorded in the PTZ state sequence contains the moment for generating the alarm data, judging that the alarm data is valid. The video alarm method can improve the alarm accuracy. The invention also discloses a video alarm device and equipment based on the dome camera, and a computer readable storage medium, which all have the above technical effects.

SUPERCHARGER AND AUTOMOBILE

A supercharger, comprising a volute (21), a bushing (23) fixed on the volute (21) and a crank (24) fitted in the bushing (23). A fit clearance is provided between the bushing (23) and the crank (24). The inner surface of the volute (21) is provided with a waste gas guide portion (211) protruding relative to the inner surface of the volute (21). The top end of the waste gas guide portion (211) is higher than the end of the fit clearance close to the inner surface of the volute (21) in the flowing direction of waste gas, and the waste gas guide portion (211) is positioned on the upstream of the flowing direction of waste gas. By means of the supercharger, the crank is unlikely to be blocked in rotation, and reliability of a waste gas bypass valve connected to the crank is improved when the waste gas bypass valve moves.

SECONDARY AIR INJECTION PIPE AND SECONDARY AIR INJECTION SYSTEM

Disclosed is a secondary air injection pipe (100), which comprises an air inlet pipe (110) and an air outlet pipe with branches (130). The air inlet pipe (110) is in communication with the air outlet pipe. Each branch (130) of the air outlet pipe is a bent pipe. The inner wall of the air outlet pipe is provided with disturbing structures (150) protruding inwardly and disposed at the bent position of each branch. Further provided is a secondary air injection system comprising the secondary air injection pipe. This device has the advantage of a more balanced re-combustion of waste gas.

METHOD FOR COPYING CLUSTERED DATA, AND METHOD AND DEVICE FOR DETERMINING PRIORITY

A method and device for copying clustered data. The method for copying clustered data comprises: determining at least one copying task requiring inter-cluster data copying (201); calculating a priority for each of the at least one copying task (202); and implementing the copying task according to the priority of the copying task (203).The method and device provided in the invention can achieve reasonable scheduling of data to be copied under a limited inter-domain bandwidth, thereby achieving rapid copying of the data.

Restaurant demand prediction method and system

The invention discloses a restaurant demand prediction method and system. The method comprises the steps of obtaining food material types of recommended dishes and the relative usage amount of each food material according to dish names in recommended dish menu information of a restaurant; obtaining relative proportion data of each food material in the recommended dishes of the restaurant according to the sales volume of the recommended dishes and the relative usage amount of each food material; determining a plurality of restaurants of the same type as the restaurant, and predicting predicted demand data of food materials in recommended dishes of a second batch of restaurants according to actual demand data of the food materials of known recommended dishes of the first batch of restaurants and network comment data of the food materials; predicting food material prediction demand data of the recommended dishes of the second batch of restaurants according to the relative proportion of each ...

DATA QUERY METHOD, APPLICATION AND DATABASE SERVERS, MIDDLEWARE, AND SYSTEM

The present application relates to the technical field of databases and provides a data query method, application and database servers, middleware, and a system. The method comprises: obtaining a data query request and generating a data query script according to the data query request; sending the data query script to a data storage system; and receiving a result obtained by executing the data query script by the data storage system. According to the present invention, by obtaining a data query request and generating a data query script according to the data query request, sending the data query script to a data storage system, and receiving a result obtained by executing the data query script by the data storage system, the data storage system can obtain a final result according to the data query script by sending the data query script to the data storage system only once. Therefore, the number of accesses to the data storage system is reduced, and data query efficiency is improved.

METHOD OF PREPARING HEPATOCYTE-LIKE CELLS AND BILE DUCT-LIKE CELLS USING HUMAN MINOR SALIVARY GLAND EPITHELIAL STEM/PROGENITOR CELLS AND USE THEREOF

The present invention provides a method of preparing hepatocyte-like cells and bile duct-like cells using human minor salivary gland epithelial stem/progenitor cells, and a use thereof. In the method, epithelial stem/progenitor cells are isolated from a human minor salivary gland tissue and cultured, further cultured and amplified in an epithelial cell culture medium, and then induced to differentiate in a hepatocyte-inducing culture medium containing a growth factor and utilizing a planar culture system or a three-dimensional culture system to obtain hepatocyte-like cells and bile duct-like cells.

AUTOMOBILE EXHAUST EMISSION SYSTEM AND SECONDARY AIR INJECTION DEVICE THEREOF

An automobile exhaust emission system and a secondary air injection device thereof. The secondary air injection device comprises an electric pump (6) that is controlled to be opened or closed through an electric control unit (4). An intake port (65) of the electric pump (6) is communicated with an air source, an exhaust port (63) of the electric pump (6) is communicated with an intake port of a combined valve (5), and an exhaust port of the combined valve (5) is communicated with an exhaust pipe or an exhaust manifold. The control end of the combined valve (5) is connected to a control valve (3), the control valve (3) is in signal connection to the electric control unit (4) and controls the combined valve (5) to be opened or closed, and the control valve (3) is communicated with an intake manifold through a negative pressure pipe (9). According to the system, by using the combination of the electric pump, the combined valve and the control valve and controlling the electric pump to be opened ...

Rapid demolding and forming device for plastic vacuum forming machine

A rapid demolding forming device for a plastic vacuum forming machine comprises a base, a workbench, a mold, a main air channel, a plastic vacuum forming machine body, an air compressor, a main air pipe, a three-way connector, a pressure regulating valve and an air nozzle, the plastic vacuum forming machine body is installed on the base, the workbench is arranged between the plastic vacuum forming machine body and the base, and the mold is installed on the workbench; a through hole is formed in the position, corresponding to the mold main air channel, of the workbench, an air nozzle is horizontally arranged above the side of the mold, and a certain distance is reserved between the air nozzle and the upper surface of the mold. A gas compressor is arranged on one side of the base and connected with the three-way connector through a main gas pipe, the main gas pipe is connected with the two branch gas pipes through the three-way connector, one branch gas pipe is connected with the gas nozzle ...

METHOD FOR IN VITRO CONSTRUCTING SALIVARY GLAND ORGANOIDS AND ACINUS-LIKE

Disclosed is a method for in vitro constructing biological engineered salivary gland organoids and acinus-like based on human minor salivary gland adult stem cells. It particularly refers to a method for obtaining organoids with salivary gland structures and functions by mixed cultivation of mesenchymal stem cells and epithelial stem/progenitor cells of the human minor salivary glands, or a method for obtaining acinus-like tissues with salivary gland acinus structures and functions by individual cultivation of epithelial stem/progenitor cells of the human minor salivary glands. It has the advantages that sampling sources are wide, it is easy to cut, and the trauma is small; a donor site in a mouth is concealed; materials are drawn from adult tissues; and autoplastic transplantation can be carried out through amplification in vitro. The method has a wide application prospect in the growth and development research of in vitro or in vivo salivary glands, research on a salivary gland disease ...

Glass slide manufacturing method of small bee specimen

The invention discloses a method for manufacturing a slide of a small bee specimen. The method comprises the following steps: dissecting, transparentizing, cleaning, tabletting, tabletting wings, carrying out microscopic examination, sealing and preparing Arabic gum. The Arabic gum comprises the following components: Arabic resin, distilled water, trichloroacetaldehyde, glacial acetic acid and glucose syrup. The preparation method has the beneficial effects that the complicated dehydration step is simplified, so that the preparation time is saved; meanwhile, the Arabic gum is adopted for flaking, the advantages that operation is convenient, toxicity is low, the slide is easy to adjust and the like are achieved, and the clear and convenient-to-observe specimen slide can be obtained by means of the small bee specimen slide manufacturing method.

Animal collagen extraction equipment and process

The invention discloses animal collagen extraction equipment and process, the animal collagen extraction equipment comprises a base and an enzymolysis tank, the enzymolysis tank is fixedly arranged at the top of the base, and the invention relates to the technical field of collagen extraction. According to the animal collagen extraction equipment and process, the material filtering mechanism, the re-crushing mechanism and the feeding mechanism are arranged at the top of the enzymolysis tank, and the stirring mechanism is arranged in the enzymolysis tank, so that the enzymolysis tank can perform enzymolysis through the cooperation of the material filtering mechanism, the re-crushing mechanism, the feeding mechanism and the stirring mechanism; according to the technical scheme, integrated automatic feeding, filtering and re-crushing procedures of raw materials are completed, so that on the basis that feeding is convenient, the material size is relatively regular and consistent, and the subsequent ...

Robot automatic driving method based on time sequence analysis and multi-sensor fusion

The invention belongs to the technical field of robot automatic driving, and particularly relates to a robot automatic driving method based on time sequence analysis and multi-sensor fusion. According to the robot automatic driving method based on time sequence and sensor fusion provided by the invention, a mode of combining an encoder and decoder architecture network with federated Kalman filtering is applied to predict robot driving, and the encoder and decoder architecture network can be combined with more previous sensor data to perform more accurate prediction; meanwhile, the fault-tolerant capability of the system is improved, so that self-adaptive automatic driving can be realized in different scenes; according to the method, the sensor data at more moments can be utilized, the prediction precision at the next moment can be improved, and meanwhile, the sensor data at multiple moments can be fed back to the federated Kalman filtering algorithm, so that the fault-tolerant capability ...

EGFR KINASE INHIBITOR AND PREPARATION METHOD AND USE THEREOF

The present invention provides an EGFR kinase inhibitor and a preparation method and use thereof. Specifically, the present invention provides a compound as shown in formula (I), the definition of each group therein being as described in the description. Said compound is an efficient EGFR inhibitor.

Coordinated planning method for source-load-storage active power distribution network under low-carbon economy

The invention relates to a coordinated planning method for a source-load-storage active power distribution network under low-carbon economy, and provides a double-layer planning model considering'source-load-storage ', the upper-layer model takes annual comprehensive cost containing carbon emission as a target function, and APSO is used for optimizing element planning position and capacity; the lower-layer model takes the minimum network loss as an objective function, and obtains an element output strategy by using a CPSO algorithm; through interaction between the upper layer and the lower layer, benefits of DG, energy storage and interruptible load technologies are fully exploited, and low-carbon and low-cost power distribution network planning is realized. According to the method, the carbon emission cost can be reduced, the network loss cost and the superior power grid electricity purchase cost are reduced, the total planning cost is reduced, and good economic benefits are achieved.

Method, system and application for generating structural body according to database data definition language

The invention belongs to the technical field of language data recognition and processing, and discloses a method, system and application for generating a structural body according to a database data definition language. A database data definition language (DDL) input box obtains an input database data definition statement; selecting annotation formats (JSON, GORM and FORM) needing to be generated for the acquired data definition statements, including but not limited to selection of one format; and performing conversion by using the conversion program to generate a structural body and generate field annotations in the structural body. According to the method for automatically generating the structural body according to the database DDL, in the process of using the GORM, the mapping relation between the Golang structural body and the database table structure is achieved by combining the language characteristics of Golang, the structural body can be automatically compiled, a large amount of ...

TASK SCHEDULING METHOD AND DEVICE

Provided are a task scheduling method and device. Network resources required by a task performing cross-cluster reading and writing are analysed, in order to obtain the situation regarding network resources occupied by the reading and writing, and the task is scheduled according to the situation regarding network resources required by the reading and writing. The situation regarding network resources occupied by the reading and writing respectively reflects network resources which can be saved by scheduling the task to a cluster in which data accessed during the reading and writing is located. Therefore, accordingly determining the cluster to which the task is scheduled enables to the task to achieve less network resources occupation, solving inter-cluster excessive bandwidth occupation in the prior art.

Method and device for calculating three-phase unbalance degree of crossing line

The invention provides a method and device for calculating the three-phase unbalance degree of a crossing line, and the method comprises the steps: obtaining the basic parameters of a target crossing line model, determining the self-impedance parameters and mutual impedance parameters of all loops according to the basic parameters, and calculating the three-phase unbalance degree of the target crossing line model; a second mutual impedance parameter of a target loop and a crossing loop of the target loop in the mutual impedance parameters is obtained by splitting the target loop into a plurality of length units, respectively calculating unit mutual impedance parameters of each length unit and the crossing loop, and performing accumulation; and then, according to the self-impedance parameter, the mutual impedance parameter and the voltage value of each loop, determining a current sequence component of each loop, and finally obtaining a zero sequence unbalance degree and a negative sequence ...

Book grading and classifying recommendation method and system

The invention provides a book grading and classification recommendation method and system, and the method comprises the steps: displaying a user interface, requesting to input the age, gender and education degree of a user, and selecting a reading language; the method comprises the following steps: receiving input information of a user, generating a first grading classification recommendation bibliography according to the age, gender, education degree and language of the user, and prompting and guiding the user to select a read book in the first grading classification recommendation bibliography; performing intelligent test question synthesis according to the read book and a preset dictionary database; displaying the synthesized intelligent test questions, guiding the user to answer, and obtaining an answer result of the user; and according to the age, the gender, the education degree, the language, the read book and the answer result of the user, generating a second grading classification ...

COMPOSITE ELECTRODE MATERIAL FOR OXYGEN REDUCTION REACTION, PREPARATION METHOD AND USE THEREOF

A composite electrode material for an oxygen reduction reaction, a preparation method and use thereof. The composite electrode comprises a conductive substrate material and a catalyst-binder mixed material coated on the surface of the conductive substrate material; the catalyst-binder mixed material is a mixed solid of a binder and a metal-dual-nano carbon catalytic material. Two or more kinds of nano carbon are used in combination as catalyst carriers, greatly increasing the electrical conductivity and the specific surface area; charge separation between the nano carbons is caused by the difference between the Fermi energy levels of the two, improving the overall catalytic activity of the cathode; the high catalytic activity catalyst can accelerate the reduction reaction of the oxygen on the cathode, improving the discharge performance of the cathode; and thus dissolved oxygen in media such as seawater can be used for discharge, achieving high power density and energy density. When tested ...

Rotatable pallet fork device for cargo carrying table of stacking machine

The invention relates to the technical field of logistics storage stacking machine equipment, and provides a rotatable pallet fork device for a cargo carrying table of a stacking machine. The rotatable pallet fork device of the cargo carrying table of the stacking machine comprises the cargo carrying table, a rotating support and a rotating driving component. The rotating support is arranged above the cargo carrying table, and a rotating shaft is arranged at the bottom of the rotating support and rotationally matched with the cargo carrying table. A fork is arranged on the upper portion of the rotary support. The rotation driving part is arranged on the cargo carrying table and located below the rotation support, the rotation driving part is connected with the rotation support, and the rotation driving part is used for driving the rotation support to rotate so as to drive the cargoes to rotate. The rotary driving component drives the rotary support to rotate, so that the pallet fork drives ...

Sludge crushing equipment

The invention provides sludge crushing equipment, and relates to the technical field of auxiliary equipment for sludge drying. The sludge crushing equipment comprises a crushing box, two first crushing rollers, two second crushing rollers, two third crushing rollers and a flow guide part, the crushing box is provided with a first feeding port and a first discharging port. The two first crushing rollers are arranged in the crushing box and are close to the first feeding opening, and a first crushing channel is formed between the two first crushing rollers; the two second crushing rollers are arranged on the inner sides of the two third crushing rollers and are close to the first discharging opening, second crushing channels are formed between the second crushing rollers and the third crushing rollers, and the two second crushing channels are located on the two sides of the extending direction of the first crushing channel; the flow guide part is arranged above the second smashing roller ...

METHOD FOR DISPLAYING AND PROCESSING NAME LIST, CLIENT, AND SERVER

Disclosed are a method for displaying and processing a name list, a client, and a server. The method for displaying a name list comprises: acquiring name data, wherein the name data comprises at least one name string (S10); acquiring Unicode information of a first predetermined character in the name string (S12); determining a predetermined code segment corresponding to the Unicode information of the first predetermined character, and categorizing the name string as a predetermined type corresponding to the predetermined code segment, wherein there is at least one predetermined code segment, and each predetermined code segment corresponds to one predetermined type (S14); and correspondingly displaying, on a display interface, a type identifier of the predetermined type and a name string corresponding to the predetermined type (S16). The method for displaying a name list and the client of the present invention can effectively enable generation of multi-lingual name lists.

GARBAGE COLLECTION METHOD AND DEVICE

A garbage collection method and device, the method comprising: acquiring target service types comprising all service items (101); determining a target collection component corresponding to each of the target service types (102); performing garbage collection of the target service type corresponding to each of the target collection components (103). By performing garbage collection on the basis of collection components constructed using service type as a granularity value, such that different collection components correspond to different service types, flexible extension of service types can be achieved, thus enabling collection of isomorphic service types and achieving greater commonality.

Monatomic fluid driven carbon dioxide methanation conversion system and use method

The invention discloses a monatomic fluid driven carbon dioxide methanation conversion system and a using method, the monatomic fluid driven carbon dioxide methanation conversion system comprises an absorption device and a desorption conversion device, a liquid outlet of the absorption device is communicated with a first inlet of a heat exchanger through a first pump, and a first outlet of the heat exchanger is communicated with an inlet of the desorption conversion device; a liquid outlet of the desorption conversion device is communicated with a second inlet of the heat exchanger through a second pump, and a second outlet of the heat exchanger is communicated with a liquid inlet of the absorption device through a cooler. According to the method, the monatomic fluid is adopted as the solvent, so that charges can be generated, the problem of high energy consumption caused by the fact that CO2 desorption is limited by thermal desorption can be effectively solved, the bottleneck of high energy ...

Large-scale photoelectric product vibration control sensor distribution point position calculation method

The invention provides a large-scale photoelectric product vibration control sensor point distribution calculation method, and belongs to the technical field of vibration test, and the method specifically comprises the steps: building a mathematical model of the influence between a response spectrum and a reference spectrum of a point distribution position combination on a force transmission point, and obtaining a calculation model with the minimum vibration response mean square deviation degree of a large-scale photoelectric product; simulation modeling software is used for completing large-scale photoelectric product vibration clamp modeling; performing modal calculation on the clamp model; analyzing the response dynamics of the vibration clamp; according to the method, regional feature points can be arranged through sensors, and a frequency response function of a force transmission point at a connection position of a clamp and a product is used for calculating a function relationship ...

Audio track switching method and device, computing equipment and storage medium

The invention discloses an audio track switching method and apparatus, a computing device and a storage medium. The method comprises the steps of obtaining data and identification information of a plurality of tracks in media coding data; when it is judged that the identification information of the multiple tracks and the media types do not conform to the preset mapping table, the identification information of the multiple tracks is corrected, and data of the multiple tracks are stored in data queues corresponding to the corrected identification information of the multiple tracks; the preset mapping table is used for recording a mapping relationship between the identification information and the media type; in response to a trigger operation on a target audio track switching element in the plurality of audio track switching elements, switching the current audio track to the target audio track; and decoding and consuming the audio data in the data queue of the target audio track. By means ...

FAST INSERTION STRUCTURE AND ENGINE USING SAME

Provided is a fast insertion structure, comprising a plug (200) and a joint (100), wherein the plug (200) has tangent planes (220) axially extending from an insertion end of the plug, inclined planes (230) extending from tail ends of the tangent planes (220), and clamping faces (240) extending radially from tail ends of the inclined planes (230); the joint (100) has clamping claws (110), each of the clamping claws (110) has a clamping groove (112) and an insertion groove (113), the clamping groove (112) having a limiting surface (115); and when the plug (200) is inserted into the joint (100), the tangent planes (220) are inserted into the insertion grooves (113), the clamping faces (240) cooperate with the limiting surfaces (115), the axial length from a starting end of the tangent plane (220) to the clamping face (240) is larger than the axial length from a starting end of the insertion groove (113) to the limiting surface (115). Further provided is an engine using the fast insertion structure ...

Image recognition method, device and equipment based on operator fusion and storage medium

The invention provides an operator fusion-based image recognition method and device, electronic equipment and a storage medium, and the method comprises the steps: building a visual model through obtaining model parameters inputted by a user, and carrying out the analysis of the visual model, and obtaining an operator connection graph; obtaining all possible operator fusion strategies according to a preset fusion rule and the operator connection graph; screening the operator fusion strategies according to a preset optimization objective function; executing operator fusion operation according to the screened operator fusion strategy to obtain a fused visual model; and acquiring a to-be-recognized image, inputting the to-be-recognized image into the fused visual model, and outputting an image recognition result through the fused visual model. According to the method, the calculation complexity of the operator fusion strategy is screened, and the globally optimal operator fusion strategy is ...

Integrated system suitable for high concentration odor treatment

... 本实用新型涉及种适用于高浓度臭气处理的集成化系统，包含箱体，以及集成设置在该箱体内部的：洗涤除臭设备；生物除臭设备，其进风管分别通过连接风管连接洗涤除臭设备的进风管和出风管；光解除臭设备，其进风管分别通过连接风管连接洗涤除臭设备的进风管、生物除臭设备的进风管和出风管，其出风管通过连接风管连接光解除臭设备的进风管；抽风机，其连接光解除臭设备的出风管；排气筒，其连接抽风机，且顶部向上伸出箱体，由抽风机抽出的经除臭处理后的达标气体通过该排气筒高空排放。本实用新型有机整合了洗涤除臭、生物除臭以及光解除臭的技术，且各设备之间接口简单；能适应不同臭气组分和浓度的波动，除臭效率最大可达99.99%以上。 ...

Network traffic classification method and device based on machine learning

The invention discloses a network traffic classification method and device based on machine learning. The method comprises the following steps: acquiring a training data set containing normal traffic and abnormal traffic; based on neighbors of the samples in the training data set, calculating rigidity IH of the samples; dividing the training data set into an easy set and a difficult set according to the rigidity IH; dividing the difficult set into a majority class sample set and a minority class sample set according to the sample number of the classes; performing K-means clustering on the majority of sample sets, and replacing samples in each cluster with a clustering center to obtain a sample set SK; performing SMOTE oversampling on the majority class sample set to obtain a sample set SZ; combining the easy set, the minority class sample set, the sample set SK and the sample set SZ to obtain a training data set SN; training the network traffic classification model based on the training ...

Negative electrode material and preparation method thereof, lithium ion battery and application

The invention provides a negative electrode material, a preparation method, a lithium ion battery and application. The negative electrode material comprises carbon materials and a silicon-based composite material distributed among the carbon materials, wherein the silicon-based composite material comprises Co/Ce modified carbon nanotubes, modified silicon monoxide particles and graphite particles; wherein the Co/Ce modified carbon nanotubes are interwoven to form a three-dimensional network structure, and the modified silicon monoxide particles and the graphite particles are independently loaded in the three-dimensional network structure; lithium atoms, nitrogen atoms and sulfur atoms existing in the form of interstitial atoms are doped in silicon monoxide crystal lattices of the modified silicon monoxide particles. The negative electrode material disclosed by the invention not only has a relatively low volume expansion rate, but also has relatively high first efficiency and relatively ...

Preparation method of polysubstituted imidazo heterocyclic compound

The invention provides a preparation method of a polysubstituted imidazo heterocyclic compound, which comprises the following steps: mixing a nitrogen heterocyclic compound, a butenedione compound and an oxidizing agent, adding the mixture into an organic solvent to construct a reaction system, carrying out stirring reaction at 80-140 DEG C for 2-12 hours, and carrying out post-treatment on the obtained reaction liquid to obtain the polysubstituted imidazo heterocyclic compound, the process is convenient to operate, low in cost and wide in application range, and has a wide practical application prospect.

Industrial self-driven carbon dioxide trapping system and use method

The invention discloses an industrial self-driven carbon dioxide trapping system and a use method, the industrial self-driven carbon dioxide trapping system comprises a solvent preparation system, a carbon dioxide absorption system, a solvent regeneration system and an energy storage system, the solvent preparation system is connected with the carbon dioxide absorption system, and the carbon dioxide absorption system is connected with the solvent regeneration system; the solvent preparation system, the carbon dioxide absorption system and the solvent regeneration system are connected with the energy storage system. The metal-containing monatomic fluid solvent is used as an absorbent for trapping carbon dioxide, and metal is added into the monatomic fluid solvent, so that the monatomic fluid not only has higher carbon dioxide trapping capacity, but also has higher carbon dioxide trapping capacity due to the fact that metal monatomic and polyaniline in the monatomic fluid form a special conductive ...

Laminated elastomer manufacturing mold and manufacturing process

The invention relates to the technical field of dies, in particular to a laminated elastomer manufacturing die and a manufacturing process, the laminated elastomer manufacturing die comprises an upper male die and a lower female die, and an accommodating cavity for accommodating a laminated elastomer is formed between the upper male die and the lower female die; the center of the lower female die extends upwards to form a frustum attached to the bottom face of the upper male die in the assembling process, and a plurality of lower clamping grooves used for supporting the bowl-shaped metal spacers are machined in the periphery of the frustum. A plurality of groups of upper grooves and lower grooves are also arranged between the upper convex die and the lower concave die in a matching manner; movable chucks which are matched with the clamping grooves to fix the bowl-shaped metal spacers are arranged in the upper grooves and the lower grooves; a plurality of glue injection grooves are formed ...

OPTIMIZATION METHOD, EVALUATION METHOD, PROCESSING METHOD, AND DEVICE FOR DATA MIGRATION

An optimization method, evaluation method, processing method, and device for data migration. The optimization method comprises: sorting, according to the volume of first depended data, data units to be migrated (100); generating multiple data migration schemes (101); computing to obtain data indicating an inter-cluster bandwidth state after switching computing clusters (102); and optimizing, according to the data indicating the bandwidth state, a selection from the data migration schemes (103). By employing a principle of prioritizing copying of hot data units having a larger volume of depended data and then performing a computing cluster switch, and generating prediction and evaluation of schemes on the basis of data indicating the bandwidth state before optimizing a selection, the method obtains a preferable data migration scheme, improves efficiency of data migration, and lowers the risk of data migration failures.

Preparation method of pre-lithiated silicon monoxide negative electrode material

The invention discloses a pre-lithiated silicon monoxide negative electrode material preparation method, which comprises: S1, adding silicon monoxide powder into a sodium alginate solution, uniformly stirring, adding a cross-linking agent solution, and carrying out a stirring reaction to obtain a hydrogel A; s2, heating the hydrogel A in an inert atmosphere to obtain a silicon-carbon composite material B; s3, mixing the silicon-carbon composite material B with a pre-lithiation solution, uniformly stirring, and then performing spray drying in an inert atmosphere to obtain a pre-lithiated silicon-carbon composite material C; and S4, mixing the pre-lithiated silicon-carbon composite material C with a lithium source, and calcining in an inert atmosphere. The prepared pre-lithiated silicon monoxide negative electrode material has the characteristics of uniform internal structure, high pre-lithiation amount, good cycle performance and high first efficiency, and the compact high-conductivity carbon ...

Assembly type workshop roller way scheduling method

The invention discloses an assembly type workshop roller way scheduling method, and belongs to the field of workshop scheduling. Aiming at the problems of low scheduling efficiency and poor precision in the prior art, the invention provides an assembly type workshop roller way scheduling method, which comprises the following steps of: after a current roller way detects a product in process, judging whether the next section of roller way of the current roller way is full of the product in process; if not, the products in process of the current roller way are conveyed to the next roller way; and if full, performing judgment again, and performing different scheduling modes according to the result after judgment again. Whether the next roller way reaches the threshold value or not is determined in a double judgment mode, it can be guaranteed that products orderly pass through the roller way, the problem that due to faults of photoelectric detection equipment and other detection equipment, the ...

Environment-friendly mineral powder dust suppressant and preparation method thereof

The invention provides an environment-friendly mineral powder dust suppressant and a preparation method thereof. The preparation method comprises the following steps: carrying out composite modification on gleditsia sinensis lam gum and/or flaxseed gum to introduce a sulfoethyl group and a carboxymethyl group; and mixing the compound modified gleditsia sinensis lam gum and/or flaxseed gum with pregelatinized starch or not to obtain the environment-friendly mineral powder dust suppressant. Gleditsia sinensis lam gum and/or flaxseed gum react in ethyl alcohol, the reaction efficiency and uniformity are good, a sulfoethyl group and a carboxymethyl group are introduced to molecules of the gleditsia sinensis lam gum or flaxseed gum, the viscosity of the gleditsia sinensis lam gum or flaxseed gum is increased, and the water dissolving speed and the strength and toughness after film forming are improved. The composite modified gleditsia sinensis lam gum and flaxseed gum are adopted as a film-forming ...

METHOD FOR IN VITRO CONSTRUCTING SALIVARY GLAND ORGANOIDS AND ACINUS-LIKE

Disclosed is a method for in vitro constructing biological engineered salivary gland organoids and acinus-like based on human minor salivary gland adult stem cells. It particularly refers to a method for obtaining organoids with salivary gland structures and functions by mixed cultivation of mesenchymal stem cells and epithelial stem/progenitor cells of the human minor salivary glands, or a method for obtaining acinus-like tissues with salivary gland acinus structures and functions by individual cultivation of epithelial stem/progenitor cells of the human minor salivary glands. It has the advantages that sampling sources are wide, it is easy to cut, and the trauma is small; a donor site in a mouth is concealed; materials are drawn from adult tissues; and autoplastic transplantation can be carried out through amplification in vitro. The method has a wide application prospect in the growth and development research of in vitro or in vivo salivary glands, research on a salivary gland disease ...

Method and system for evaluating reading ability of children

The invention provides a child reading ability evaluation method and system, and the method comprises the steps: displaying a preset reading material containing a plurality of reading difficulties, and prompting and guiding a child to read the preset reading material; performing intelligent test question synthesis according to a preset reading material, and generating two types of test questions including written answers and sounding answers; obtaining a written answer result text, and comparing the result text with a preset correct result text to obtain a written answer result; the method comprises the following steps: acquiring an answer audio of a sounding answer, analyzing the answer audio, extracting feature information of the answer audio, comparing the text, pinyin corresponding to the text, a speech speed and a lag point according to the text and the pinyin corresponding to the text with a preset answer to obtain a sounding answer result, and calculating a reading fluency degree ...

Power grid data security protection method and system and storage medium

The invention provides a power grid data security protection method and system and a storage medium, and is applied to the field of power grid data security. The method comprises the following steps: firstly, analyzing power grid data received by a plurality of nodes, and obtaining characterized power grid data, namely feature information; and sending the feature information to a pre-configured main data channel for preliminary inspection. And sending the feature information which is preliminarily detected to be abnormal to a pre-configured auxiliary data channel, and comparing and analyzing the feature information with preset information in the attack blacklist. And the abnormal feature information is deleted, and the normal feature information is stored in the data main storage for storage. Thus, whether the data is abnormal data is determined through preliminary inspection and comparative analysis with the preset information in the attack blacklist, and the abnormal data is deleted, ...

HIGH-DENSITY HIGH-RIGIDITY GRAPHENE POROUS CARBON MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

Disclosed are a high-density high-rigidity graphene porous carbon material and a preparation method and application thereof. The method comprises the following steps: 1. original colloidal sol preparation: adding a graphene-based component or a mixture of a graphene-based component and auxiliary components into a solvent for dispersion to obtain an original colloidal sol for preparing the graphene porous carbon material; 2. graphene-based gel preparation: placing the original colloidal sol prepared in Step 1 into a reaction container, reacting for 0.1-100 hours at a temperature of 20-500°C to obtain the graphene-based gel; and 3: high-density high-rigidity graphene porous carbon material preparation: drying the graphene-based gel at a temperature of 0-200°C, increasing the temperature to 100-3600°C in anoxic atmosphere for conducting thermal treatment for 0.1-100 hours, and/or reacting for 0.1-50 hours at a temperature of 200-2000°C by adopting an activation reaction method. Compared with ...

EVAPORATION DEVICE AND CONTROL METHOD THEREFOR, AND REFRIGERATED DISPLAY CABINET

The present disclosure relates to an evaporation device and a control method therefor, and a refrigerated display cabinet. The evaporation device comprises a heat exchange body (1). The heat exchange body (1) sequentially comprises a dehumidification area (A) and an anti-frosting refrigeration area (B) along a first direction; the dehumidification area (A) is located on an air inlet side along the first direction; the heat exchange body (1) has a heat exchange channel for a refrigerant to flow; the heat exchange channel comprises a plurality of first channel segments and a plurality of second channel segments; the plurality of first channel segments are spaced apart along the first direction, and extend in a second direction perpendicular to the first direction; the second channel segments cause the same ends of adjacent first channel segments in the heat exchange channel to be communicated; and the density of adjacent first channel segments in the anti-frosting refrigeration area (B) is ...

TASK SCHEDULING METHOD AND DEVICE

Provided are a task scheduling method and device. Network resources between a default cluster of a task and an idle target cluster are determined, and the task is scheduled according to the determined network resources. The default cluster is a cluster storing task data required for the task to run. When a task is scheduled on the basis of a cluster load situation, excessive bandwidth occupation is mainly caused by the task being scheduled to a target cluster to run but still needing to read task data required for running from a default cluster. Therefore, using a means wherein a task is scheduled to a target cluster only when the network resources situation between the target cluster and a default cluster is relatively good solves inter-cluster excessive bandwidth occupation in the prior art.

Magnetic suspension heterogeneous catalyst as well as preparation method and application thereof

The invention relates to a magnetic suspension heterogeneous catalyst and a preparation method and application thereof.Biomass charcoal and a metal source are used, metal atoms in the metal source can be evenly dispersed to the surface and pores of the biomass charcoal, and the agglomeration phenomenon of a metal catalyst is effectively relieved; moreover, the biomass charcoal and the metal source are cooperatively used, so that the catalytic activity of the magnetic suspension heterogeneous catalyst is effectively improved; by using the hollow glass microspheres and the thickening agent, a powdery material is compounded into a spherical shape, so that the problems that a powdery catalyst is inconvenient to use and is difficult to fill a fixed bed are solved, and the problem that metal in a metal catalyst is dissolved out can be effectively avoided; the use of the hollow glass microspheres brings floatability to the magnetic suspension heterogeneous catalyst, and is beneficial to the recovery ...

Preparation process of copper powder with high billet strength and low apparent density

The invention relates to the field of copper powder, in particular to a preparation process of copper powder with high blank strength and low apparent density, and aims to solve the problems that an existing copper powder preparation process seriously pollutes the environment and is high in energy consumption, and the prepared copper powder is high in apparent density and very low in blank strength. According to the preparation technology, the copper powder is formed through spraying, pollution to the environment is greatly reduced, energy consumption is low, the copper powder formed through spraying can form powder in an irregular shape, the shape of the sintered copper powder is more complex, the apparent density of the sintered copper powder is reduced, graphene grows on the surface of the sintered copper powder when the copper powder is sintered, and the surface of the sintered copper powder is more uniform. The tensile strength, hardness, frictional wear resistance and other properties ...

Firewall security policy processing method and device, equipment and medium

The invention provides a firewall security policy processing method and device, equipment and a medium, and the method is applied to a firewall and comprises the steps: receiving a first packet sent by an external network; searching whether an inter-domain security policy matched with the first packet exists in the routing table or not according to the first packet and the routing table; and if the inter-domain security policy matched with the first packet exists in the routing table, creating a session table corresponding to the extranet according to the first packet and the user demand information, so that the firewall forwards the first packet and subsequent packets sent by the extranet according to the session table corresponding to the extranet, and the efficiency of receiving effective data by the intranet is improved. And if it is found that the inter-domain security policy matched with the first packet does not exist in the routing table, creating a session table corresponding to ...

Obstacle avoidance method of six-wheel independently-driven and independently-steering robot

The invention discloses an obstacle avoidance method for a six-wheel independently-driven and independently-steering robot. The obstacle avoidance method comprises the steps of solving an obstacle avoidance path and an obstacle avoidance strategy based on a fuzzy decision; when a sensor detects an obstacle, obstacle information is sent to an obstacle avoidance controller and an obstacle avoidance planner, then an optimal path point is solved through constraint of an actual environment, an optimal path is obtained through trajectory smoothing and polynomial fitting, the optimal path is discretized into coordinate points and then output, and after the coordinate points are output, obstacle avoidance strategies are selected. Obstacle avoidance is carried out according to the strategy, and the whole obstacle avoidance process is finished. According to the method, the obstacle avoidance problem of the six-wheel independently-driven and independently-steering robot under the condition that the ...

Live broadcast interaction method and device, and computer readable medium

The invention provides a live broadcast interaction method and device and a computer readable medium, in the scheme, interaction operation information for game interaction at least comprises corresponding gravity sensing information when a client device is rotated, so that game interaction can be realized by using a gravity sensing function in the client device; in addition, while the interactive game content is displayed on the interactive layer, the live video corresponding to the live stream data is continuously played in the video playing layer, and when the interactive ending instruction is detected, the client device stops displaying the interactive game content in the interactive layer, so that the interactive game content is displayed in the interactive layer. Therefore, the live broadcast content and the interactive game content can be synchronously carried out, the live broadcast content and the interactive game can be more deeply combined, and the live broadcast interactive experience ...

Distributed self-expansion relative pose estimation method of modular robot platform

A distributed self-expansion relative pose estimation method of a modular robot platform is characterized in that at least four four-wheel differential steering module robots are adopted, the front face, the rear face, the left side face and the right side face of each module robot are each provided with a camera and a cooperation identifier, and each module robot is provided with a speedometer; a TCP/IP local area network is adopted, and the relative pose estimation of each module robot is carried out according to the following steps: (1) visual pose estimation among the module robots; (2) adding a constraint to a pose estimation result, and carrying out truncation filtering; (3) fusing a plurality of pose relationships by using a sliding window, improving data stability, and performing time matching on the camera and the odometer; (4) carrying out robust pose estimation by fusing a speedometer; and (5) relatively positioning the multi-module robot. According to the method, the configuration ...

SECONDARY AIR INJECTION SYSTEM OF ENGINE

Disclosed is a secondary air injection system of an engine, comprising a secondary air injection pump (4), a secondary air combination valve (2), an electromagnetic valve (3), a vacuum air storage tank (6) and a check valve (7), wherein an air inlet of the secondary air injection pump (4) is in communication with an air filter (8), and an air outlet of the secondary air injection pump (4) is in communication with an air inlet of the secondary air combination valve (2); an air outlet of the secondary air combination valve (2) is in communication with an exhaust manifold (1) of the engine; one end of the electromagnetic valve (3) is in communication with the vacuum air storage tank (6), and the other end thereof is in communication with a vacuum chamber of the secondary air combination valve (2); the secondary air injection pump (4) and the electromagnetic valve (3) are respectively connected to an ECU (9) and are controlled by the ECU (9); the other end of the vacuum air storage tank (6) ...

Method and device for removing printed matter cementing waste gas pollutants

The invention discloses a method and device for removing waste gas pollutants of a glue binding machine in the printing industry. The method comprises the following steps: (1) collecting waste gas at the upper part of a glue pot, and then removing molten glue liquid drops in the waste gas through a filtering device; wherein the filter device is a stainless steel filter screen; (2) the gas with the molten glue liquid drops removed enters an adsorbent module to be adsorbed and purified, and VOCs pollutants in the waste gas are removed; wherein an adsorbent material adopted by the adsorbent is a zeolite molecular sieve; and (3) discharging the gas adsorbed and purified by the adsorbent module in the step (2) through an exhaust pump. The method is obvious in adsorption effect, small in size, low in energy consumption, easy to operate, simple in adsorbent regeneration and free of secondary pollution.

Heat supply energy-saving system and method

The invention discloses a heat supply energy-saving system and method, and belongs to the technical field of heat supply energy saving. Comprising the following steps: acquiring and storing real-time operation data of the heat supply system, and constructing a digital twinborn model of the heat supply system; according to the real-time operation data and the historical data, the operation state of the heat supply system is analyzed, and an energy-saving operation strategy of the heat supply system is obtained; and according to the energy-saving operation strategy, an operation instruction is sent to an intelligent control device so as to carry out parameter setting and start-stop control on equipment in the heat supply system. On the basis of big data and the Internet of Things, in combination with terminal requirements and energy supply, energy-saving regulation and control are conducted on the heat supply system, on the premise that heat supply is guaranteed, on-demand distribution of ...

Semiconductor laser beam combining device based on prism compressed light beams

The invention relates to the technical field of semiconductor laser, and discloses a semiconductor laser beam combining device based on prism compressed light beams, which comprises a water cooling plate; the stepped heat sink is mounted on the water cooling plate; the first beam combining unit is mounted on the stepped heat sink and is used for emitting first laser; the second beam combining unit is mounted on the stepped heat sink, and the second beam combining unit is mounted on one side of the first beam combining unit and used for emitting second laser; the prism comprises a first incident plane and a second incident plane which are obliquely arranged, a first emergent plane parallel to the first incident plane and a second emergent plane parallel to the second incident plane, and the prism is used for reducing the beam distance between the first laser and the second laser; the focus lens is installed on the water cooling plate and used for focusing the first laser wavelength and the ...

Small sample abnormal flow detection method and system

The invention discloses a small sample abnormal flow detection method and system. The method comprises the following steps of: 1) segmenting network traffic into session traffic according to sessions; 2) performing imaging on the segmented session traffic so as to capture cross-data packet features and prepare for model input; 3) constructing a twin neural network model by using a three-dimensional convolutional layer, and training by using graphical traffic; and 4) performing anomaly detection by using the trained twin neural network model. According to the method, the traffic is converted into the color graph, so that the graphical traffic has three-channel characteristics, and a model can extract short-distance cross-data-packet characteristics more effectively; a three-dimensional convolutional layer is adopted as a main structure of the twin neural network, so that the long-distance cross-data packet feature extraction capability is improved; when the attack type changes, the model ...

Solid-liquid separation process and system for extracting plant extract

The invention discloses a solid-liquid separation process and system for extracting a plant extracting solution, and relates to the technical field of solid-liquid separation equipment, the solid-liquid separation system comprises a filtering barrel, a filtering net cover is installed on the inner side of the filtering barrel, a material guiding filtering net is fixedly connected to the top end of the filtering net cover, and a conical surface is arranged on the outer wall of the material guiding filtering net; an extrusion auxiliary part, a connector and an automatic discharging assembly are arranged on the inner side of the material guiding filter screen. By arranging an extrusion auxiliary part and a liquid drainage unit, an arc-shaped pressing block rotates to push the inner side of a filter screen cover to fixedly enter a hollow shell, and then when the arc-shaped pressing block enters an inner cavity of the hollow shell, solid fibers filtered from a plant extracting solution are extruded ...

Wing rotating mechanism of ship-borne transport plane

The invention discloses a wing rotating mechanism of a ship-borne transport plane in the field of airplanes, which comprises a wing mounted on a fuselage through a rotating system, the rotating system comprises a guide rail assembly fixed on the fuselage and used for allowing a supporting assembly to rotate at the top of the guide rail assembly in the circumferential direction, and the supporting assembly is fixedly connected to the wing; the roller assembly is fixedly connected to the bottom of the supporting assembly and drives the supporting assembly to rotate along the guide rail assembly; the actuating assembly is fixed on the guide rail assembly and the wings and provides power to drive the wings to rotate; the locking assembly is fixed to the fuselage and the wings, the wings and the fuselage are locked after the wings are unfolded, the wings are rotated to the direction parallel to the fuselage according to the wing rotation scheme, and the occupied space of the tilt rotorcraft ...

Position migration type two-color fluorescent probe as well as preparation method and application thereof

The invention relates to a position migration type two-color fluorescent probe as well as a preparation method and application thereof, and belongs to the technical field of fluorescent probes. The structural formula of the fluorescent probe is as follows: when living cells are in a normal physiological state, the fluorescent probe stains lipid droplets and emits blue fluorescence, and when the cells are autophagy, part of probe molecules migrate to lysosome from the lipid droplets and emit red fluorescence, so that the application of observing the autophagy process of the cells through bicolor and staining position migration is realized. The fluorescent probe has the characteristics of low price, short dyeing time, no need of washing and good biocompatibility.

Conveying method and control device of sludge conveying system

The invention discloses a conveying method of a sludge conveying system and a control device, the sludge conveying system is used in a plunger pump, the sludge conveying system is sequentially provided with a filtering assembly, a flow velocity sensor, a crushing part, a driving part and the plunger pump in the flowing direction of sludge, and the sludge conveying system further comprises the control device, the control device is electrically connected with the filter assembly, the flow velocity sensor and a main body of the plunger pump, and the conveying method comprises the following steps: the control device obtains a first sludge flow velocity which is detected by the flow velocity sensor and flows into the crushing part, and compares the first sludge flow velocity with a set value; the control device controls the running speed of the main body of the plunger pump and the filtering action of the filtering assembly according to the comparison result, so that the first sludge flow speed ...

Audio guidance automatic generation method and system

The invention provides an audio guidance automatic generation method and system, and the method comprises the steps: displaying and prompting a first user to sound and read a first reading material to the first user, and obtaining an audio record of the first user; an audio record of the first user is analyzed, feature information of the audio record is extracted to obtain a sounding rule of the first user, and the sounding rule is a mapping relation of characters, pinyin, tones, voiceprints, speed and sound intensity; inputting the text of the first reading material, the feature information of the audio record and the sounding rule, and training a preset neural network; obtaining a text of a second reading material, inputting the text of the second reading material into the trained neural network, and outputting audio reading guidance files with the same sounding rule; and displaying the second reading material to a second user, opening the page number or paragraph of the corresponding ...

Low-residual-alkali long-circulation silicon monoxide carbon material and preparation method thereof

The invention discloses a low-residual-alkali long-cycle silicon monoxide carbon material and a preparation method thereof, the low-residual-alkali long-cycle silicon monoxide carbon material comprises low-grain-size silicon monoxide containing a single lithium silicate phase as an inner core, a non-water-soluble silicate phase on the surface and a double-carbon layer coated on the surface, the inner layer of the double-carbon layer is a hydrophobic carbon layer formed by CVD coating, and the outer layer of the double-carbon layer is a hydrophobic carbon layer formed by CVD coating. And the outer carbon layer is a conductive carbon layer with hydrophilic groups. According to the method, the non-active lithium source is adopted for long-time high-temperature constant-temperature pre-lithiation, the non-active lithium source increases the oxygen content of the surface of the silicon monoxide, surface passivation is completed, disproportionation reaction in the pre-lithiation process and surface ...

Dual-wavelength laser beam combining device based on wavelength beam combining and polarization beam combining

The invention relates to the technical field of semiconductor laser, and discloses a dual-wavelength laser beam combining device based on wavelength beam combining and polarization beam combining, which comprises a water cooling plate, a first beam combining module; a second beam combining module; the first reflecting mirror is arranged between the first beam combining module and the second beam combining module; the first wavelength beam combiner is arranged between the first beam combining module and the second beam combining module; a third beam combining module; a fourth beam combining module; the second reflecting mirror is arranged between the third beam combining module and the fourth beam combining module; the second wavelength beam combiner is arranged between the third beam combining module and the fourth beam combining module; the half-wave plate is mounted on the water cooling plate; the polarization beam combiner is mounted on the water cooling plate; the focus lens is installed ...

Deslagging device of sludge coupling solid waste incinerator and incineration equipment

The invention discloses a slag discharging device of a sludge coupling solid waste incinerator and incineration equipment, the slag discharging device comprises a bottom table and a movable water tank, the bottom table is arranged at the bottom of the incinerator, and the movable water tank is arranged in the bottom table and located below a slag discharging opening of the incinerator; the deslagging device further comprises a drainage structure, the drainage structure is located at the bottom in the movable water tank and comprises a temperature control memory alloy elastic component and a blocking component, one end of the temperature control memory alloy elastic component is connected to the movable water tank, and the other end of the temperature control memory alloy elastic component is connected to the blocking component. The other end of the temperature control memory alloy spring part is connected to the blocking part; the temperature control memory alloy spring part stretches out ...

Vertical shaft drilling and digging integrated construction platform device and method

The vertical shaft drilling and digging integrated construction platform device comprises a top beam, a middle platform and a lower platform, the top beam is fixedly installed above the middle platform, the lower platform is installed below the middle platform in an up-down moving mode through a telescopic device, a slag turning shovel is installed at the bottom of the middle platform, and the slag turning shovel downwards stretches out of the lower platform. A console is installed on the middle platform, a plurality of supporting devices are installed on the outer edge of the top beam and the outer edge of the middle platform respectively, and a ceiling protection device is installed above the top beam. According to the construction platform device, operators can be well protected according to difficult-to-predict sudden problems such as rockfall and rockburst, meanwhile, a corresponding construction platform can be provided for the operators according to the requirements of construction ...

Business processing method and device, electronic equipment and computer readable medium

The invention discloses a business processing method and device, electronic equipment and a computer readable medium, and relates to the technical field of computers, one specific embodiment comprises the following steps: receiving a business processing request, obtaining a corresponding user identifier, and obtaining a corresponding order identifier according to the user identifier; determining an article type of each article in an order corresponding to the order identifier, and determining a target delivery user according to the article type; processing the order identifier according to the article type to generate a target order identifier; and sending the target order identifier to the target delivery user. The waiting of the user is avoided, and the performance efficiency of article distribution and the user experience are improved.

Pathological tissue remove device in art

... 本实用新型属于医疗辅助器械技术领域，具体涉及种术中病理组织取出装置。本实用新型主要解决了现有用于取出手术中切除的病理组织所使用的取物袋存在操作不方便和病理组织易从取物袋中倒出的技术问题。本实用新型的种术中病理组织取出装置，包括圆形袋体、设有倒刺的袋线、锁环和固定线，在所述圆形袋体的边缘设有环形袋线孔道，设有倒刺的袋线穿入袋线孔道中且使其两端伸出袋线孔道道口，锁环设在袋线的端头，袋线的尾端穿过锁环并通过固定线固定在圆形袋体的边缘，固定线的端与袋线孔道的道口连接，固定线的另端与袋线的尾部连接。本实用新型具有操作方便和病理组织不易从病理组织取出装置中倒出的优点。 ...

Lightweight digital certificate issuing method and system suitable for Internet of Things terminal

The invention discloses a lightweight digital certificate issuing method and system suitable for an Internet of Things terminal. The method comprises the steps that the Internet of Things terminal sends a lightweight certificate application request to an Internet of Things cloud center; the Internet of Things cloud center performs cloud center signature on the light certificate application request response result and sends the light certificate application request response result to the Internet of Things terminal; the Internet of Things terminal performs identity authentication on the Internet of Things cloud center after receiving a response result of the light certificate application request signed by the cloud center; after the internet-of-things cloud center passes identity authentication, the internet-of-things terminal performs terminal signature on a light certificate application request response result and sends the light certificate application request response result to the internet-of-things ...

Urban air quality prediction method based on neural network

The invention provides an urban air quality prediction method based on a neural network, and the method comprises the steps: carrying out the filling of historical meteorological data and air quality simulation data in the past five years through a two-dimensional convolution unit, carrying out the feature extraction, and inputting the extracted feature historical meteorological data and feature simulation data into an LSTM, and after respective affine transformation of the forgetting gate and the input gate, inputting a calculation result into the air quality gridding neural network, and outputting the concentration value of each pollutant day by day in the next year and the air quality index. And inputting an annual target condition into the air quality gridding neural network, and if the concentration of a certain pollutant does not meet the annual target condition, taking the pollutant as an input, and performing reverse calculation to obtain an emission reduction scheme. The method ...

Polygonatum sibiricum polysaccharide PSP-1-1 with high purity and low molecular weight, polygonatum sibiricum oligosaccharide PSO as well as method and application

The invention discloses high-purity low-molecular-weight polygonatum polysaccharide PSP-1-1 and polygonatum oligosaccharide PSO as well as a preparation method and application thereof, discloses a preparation method and pharmacological activity of the polygonatum polysaccharide PSP-1-1 and the polygonatum oligosaccharide PSO, separates and identifies physicochemical properties of the polysaccharide and the oligosaccharide through experiments, and proves that the polysaccharide and the oligosaccharide can obviously delay paralysis of CL4176 nematodes caused by A beta, so that the polygonatum polysaccharide PSP-1-1 and the polygonatum oligosaccharide PSO can be used for preparing the polysaccharide and the oligosaccharide. The compound has a potential effect of treating the Alzheimer's disease, and can be developed into a carbohydrate medicine for treating the Alzheimer's disease.

Software uploading method based on RS422

The invention discloses a software uploading method based on RS422. The software uploading method comprises the following steps: establishing communication between a DSP (Digital Signal Processor) chip and test equipment through an RS422 bus interface; judging whether the test equipment sends a software uploading instruction or not; if yes, the auxiliary software, the target software and the programming software are sequentially uploaded to the FLASH storage space of the DSP chip, and the auxiliary software erases the original software stored in the FLASH storage space of the DSP chip; after the original software is completely erased, target software is solidified to a storage area corresponding to the FLASH through the programming software, and uploading of the target software is completed. According to the method, abnormal emergencies such as communication interference and abnormal power failure of equipment in the upgrading process can be tolerated, and effective and reliable uploading ...

Dual-wavelength multi-single-bar semiconductor laser beam combining device based on wavelength beam combining technology

The invention relates to the technical field of semiconductor laser, and discloses a dual-wavelength multi-single-bar semiconductor laser beam combining device based on a wavelength beam combining technology, which comprises a water cooling plate, the first step heat sink is mounted on the water cooling plate; the first beam combining module is mounted on the first stepped heat sink and is used for emitting a first laser wavelength; the second step heat sink is mounted on the water cooling plate; the second beam combining module is mounted on the second stepped heat sink and is used for emitting a second laser wavelength; the reflector is used for reflecting the first laser wavelength; the wavelength beam combiner is arranged in front of the reflector and is used for reflecting the second laser wavelength and combining the first laser wavelength and the second laser wavelength; the focus lens is installed on the water cooling plate and used for focusing the first laser wavelength and the ...

Method for ultrasonic-assisted induction welding of thermoplastic resin-based composite material

The invention relates to a method for ultrasonic-assisted induction welding of a thermoplastic resin-based composite material, and belongs to the field of resin-based composite materials. The invention discloses a method for realizing full resin filling and high-strength connection in a thermoplastic resin matrix composite material connection process by utilizing ultrasonic vibration head assisted induction welding. According to the welding device, welding of the resin-based composite material is achieved through electromagnetic heat, and meanwhile pressure and ultrasonic vibration are applied to the upper portion of a to-be-welded joint of the composite material through an ultrasonic head. The invention aims to overcome the defect of insufficient resin filling of a joint interface in the induction welding process of the resin-based composite material and realize high-strength connection of the resin-based composite material. The method disclosed by the invention is simple and quick, is ...

Method and device for safely starting bootstrap program for intelligent electric terminal

The invention discloses a method and device for safely starting a bootstrap program for an intelligent power utilization terminal, and the method comprises the steps: reading a bootstrap program uboot from a serial port flash memory SPI Flash after a safety chip ESAM is started; the safety chip ESAM calculates an SM3 measurement value of the boot program uboot, and the SM3 measurement value is compared with an SM3 measurement value stored in the boot program uboot; and if the SM3 metric values are consistent through comparison, the MCU loads and starts the bootstrap program from the serial port flash memory SPI Flash. According to the method, an SM3 metric value comparison method is adopted, integrity verification can be conducted on the bootstrap program through metric value comparison, and it is ensured that the source of the bootstrap program is reliable.

Copper coil packaging device

The utility model provides a copper coil packaging device which comprises a vertical frame, a hydraulic pump and a discharging disc, a bottom frame is arranged on the vertical frame, two vertical frames are arranged on the bottom frame, a transverse frame is erected on the two vertical frames, the hydraulic pump is arranged on one side of the vertical frame, and the hydraulic pump is connected with a hydraulic oil cylinder. The bottom of the hydraulic oil cylinder is arranged below the transverse frame, the hydraulic oil cylinder is fixed to the vertical frame through a plurality of supports, the shaft end of the hydraulic oil cylinder is connected with a pressing disc, the discharging disc is arranged below the pressing disc, and a plurality of supporting blocks are arranged on the discharging disc. And the problem of copper wire loosening in the carrying process is avoided.

Equipment and process for recycling black rice processing waste liquid

The black rice processing waste liquid recycling equipment comprises a recycling tank, a liquid inlet pipe is fixedly connected to the bottom of one side wall of the recycling tank, an output pipe is fixedly connected to the top of the other side wall of the recycling tank, a tank cover is installed at the top end of the recycling tank, a medicine adding structure is arranged on the tank cover, and a fixing ring is fixedly connected into the recycling tank; the fixing ring is provided with an installation sleeve through bolts, the lower end face of the installation sleeve is evenly and fixedly connected with a set of threaded sleeves, installation heads are in threaded connection with the interiors of the threaded sleeves, the bottom ends of the installation heads are fixedly connected with filter cylinders, a cleaning structure is arranged on the lower side of the installation sleeve, and a filtering structure is arranged on the upper side of the installation sleeve. Through the arrangement ...

Live broadcast interaction method and device, and computer readable medium

The invention provides a live broadcast interaction method and device and a computer readable medium, in the scheme, interaction operation information for game interaction at least comprises input sequence information of a direction instruction input by a user, and is different from simple click operation, so that an interaction mode is more novel, richer interaction experience is provided, and in addition, the user experience is improved. When the interactive layer displays the interactive game content, the video playing layer also continuously plays the live video corresponding to the live stream data, and when an interaction ending instruction is detected, the client device stops displaying the interactive game content in the interactive layer. Therefore, the live broadcast content and the interactive game content can be synchronously carried out, the live broadcast content and the interactive game can be more deeply combined, and the live broadcast interactive experience is improved ...

Pressure feedback skin soft tissue expander automatic water injection device and application

The invention provides an automatic water injection device for a pressure feedback skin soft tissue expander and application. Comprising a waterproof flexible pressure sensor (1), a waterproof silicone tube wrapped electric wire (2), a water injection host (3), a silicone water supply connecting pipe (5) and a silicone water injection connecting pipe (6), one end of the silica gel water injection connecting pipe (6) is connected with the water injection host (3), and the other end is connected with the dilator water injection bag (11); the water injection host (3) is connected with the waterproof flexible pressure receptor (1) through the waterproof silicone tube wrapping the electric wire (2); and one end of the silica gel water supply connecting pipe (5) is connected with the water injection host (3), and the other end is connected with bagged sterile normal saline (17). The device is used in cooperation with a skin soft tissue expander, the pressure of the current expander on peripheral ...

Sludge drying carrier gas condensation water tank

The invention discloses a sludge drying carrier gas condensation water tank, which comprises a tank body, an ultrasonic liquid level meter is arranged at the top of the tank body, and the sludge drying carrier gas condensation water tank comprises a controller, a purging mechanism; the purging mechanism moving device is connected with the controller and is used for moving the purging mechanism to a proper position for purging a probe of the ultrasonic liquid level meter; and the gas guide device comprises a gas on-off device connected with the controller and provides high-pressure gas introduction for the purging mechanism. The influence on the work of the ultrasonic liquid level meter is avoided, the fault rate is reduced, the maintenance amount is reduced, and the service life is prolonged; gas paths are integrated, the moving position of a gas pipe is limited, and interference of a pipeline on purging operation is avoided; the influence of each structure on the liquid level detection ...

Spacer-free high-voltage transmission line galloping early warning method in night vision scene

The invention discloses a spacer-free high-voltage transmission line galloping early warning method in a night vision scene, and the method comprises the following steps: S1, installing a high-pixel monitoring and snapshot all-in-one machine on a line tower, and collecting a line sample picture set in the night scene; s2, performing night vision image enhancement on the high-voltage transmission line by using a dark channel prior theory; s3, expanding the sample set by means of geometric rotation, scaling and the like, labeling the data set, and constructing a night line detection and segmentation data set; s4, adopting a YOLOv5 target detection model to quickly identify the high-voltage transmission line in each frame of image; s5, adding a segmentation head to the YOLOv5 to perform semantic segmentation on the high-voltage transmission line; s6, performing line boundary extraction and tracking by using a morphological method; and S7, carrying out elliptical trajectory detection on the ...

Vertical field effect transistor with cross-linked fin arrangement

The invention discloses a semiconductor structure and a manufacturing method thereof, and the semiconductor structure comprises a semiconductor substrate which is provided with an uppermost surface; and a fin structure on the uppermost surface of the semiconductor substrate, the fin structure includes n first regions extending perpendicular to the uppermost surface of the semiconductor substrate and n-1 second regions extending between and connecting each of the n first regions and parallel to the uppermost surface of the semiconductor substrate, where n > = 3.

Unbalance degree measuring method and system based on simulation model and electronic equipment

The invention relates to the technical field of overhead transmission line design, in particular to an unbalance degree measuring method and system based on a simulation model and electronic equipment, and the method comprises the steps: building a same-tower double-circuit transmission line simulation model; calculating an impedance matrix corresponding to the same-tower double-circuit transmission line simulation model; and calculating a variable coefficient according to elements in the impedance matrix, and determining the variable coefficient as the unbalance degree corresponding to the same-tower double-circuit transmission line simulation model. According to the method, the unbalance degree of the simulation model of the same-tower double-circuit transmission line can be calculated without complex admittance matrix calculation and phase sequence conversion, and the calculation is accurate, simple and efficient.

Method for screening nitrogen huff and puff measure well

The invention provides a method for screening nitrogen huff and puff measure wells, which comprises the following steps of: (1) selecting nitrogen huff and puff influencing parameters of oil reservoirs to which candidate wells belong, and rating; (2) determining weight values of the parameters; (3) respectively and independently calculating the sum of the weight values corresponding to the parameters to obtain a comprehensive score of the candidate well and a target well; (4) establishing a three-dimensional geologic model of the target well area, and establishing a relationship between the periodic injection rate and the oil change rate through a numerical simulation method; and (5) determining the implementation priority of the target well according to the economic limit oil change rate and the oil change rate. According to the method, quantitative evaluation and screening can be conducted on the oil reservoir conditions and economic benefits of the nitrogen huff and puff measure well ...

Difluoromethyl thioether compound as well as preparation method and application thereof

According to the difluoromethyl thioether compound and the preparation method and application thereof, the difluoromethyl thioether compound shows certain anti-tumor activity, a foundation is laid for screening and development of new drugs, the preparation process is convenient to operate and low in cost, and the difluoromethyl thioether compound has wide practical application prospects.

Method and device for preparing pre-lithiated silicon monoxide powder

The invention discloses a method and a device for preparing pre-lithiated silicon monoxide powder, silane gas passes through areas with different temperatures in the rising process of an inner cavity of a fluidized bed to firstly form a nano-scale nucleus and be compounded with an atomized silicon source to form stable nano-scale silicon monoxide particles, and then passes through an atomized pre-lithiation solution to complete pre-lithiation, so that the pre-lithiated silicon monoxide powder is obtained. And performing secondary granulation to form micron-sized silicon monoxide particles with a stable structure, and uniformly adsorbing a pre-lithiation solution on the surfaces of the particles when the particles pass through a pre-lithiation solution atomization region in a descending process to finish pre-lithiation of the secondary particles, so as to obtain the pre-lithiated silicon monoxide powder. According to the method and the device, preparation and pre-lithiation of the silicon ...

Full-automatic plant slicing system and process

The invention relates to the technical field of traditional Chinese medicine slicing equipment, in particular to a full-automatic plant slicing system and technology.The full-automatic plant slicing system comprises a machine base, a machine frame, a fixing assembly, a wetting assembly, a slicing assembly, a recycling box and a conveying assembly, the machine frame is erected at the top of the machine base, a through groove is formed in the machine frame, and the fixing assembly is horizontally arranged on the inner wall of the bottom end of the machine frame; the wetting assembly is installed at the top end of the machine frame, the slicing assembly is installed at the top of the machine base, the recycling box is installed at the top of the machine base and located below the fixing assembly, the conveying assembly is installed at the top of the machine frame, and the bottom end of the conveying assembly penetrates through a through groove and extends to the position above the fixing assembly ...

Information processing system

The invention discloses an information processing system which comprises a first kernel, a second kernel, a third kernel and a fourth kernel. The first kernel is used for receiving and responding to a peripheral interface command and upgrading and optimizing the FLASH storage areas corresponding to the second kernel, the third kernel and the fourth kernel; the second core is used for transmitting the sensing quantity collected by a peripheral sensor or a processor and received by a peripheral interface to the third core; the third core is used for performing signal processing on the sensing quantity according to a calculation model; and the fourth core is used for transmitting a signal processing result to peripheral equipment connected with the peripheral interface. The software coupling degree of the information processing system can be reduced, software and hardware separation is achieved, a software assembly line is built, and professional labor division is achieved.

Scraper conveyer

The scraper conveyor comprises conveying equipment and a first adjusting part, the conveying equipment is used for conveying sludge, the first adjusting part is connected with one end of the conveying equipment and adjusts the height of the conveying equipment at the end, and the conveying equipment is arranged at an angle relative to the horizontal direction; the other end of the conveying equipment is connected with a base of the conveying equipment; a baffle and a second adjusting part are arranged on the conveying equipment, one end of the baffle is arranged on the upper surface of the conveying equipment, and the other end of the baffle is connected with the upper surface of the conveying equipment through the second adjusting part; the second adjusting part is telescopic, and the baffle is arranged at an angle relative to the upper surface of the conveying equipment. Two adjusting modes are adopted, the double adjusting effect is achieved, and the problems caused by the improper inclination ...

Aerosol mass concentration detection system

The invention discloses an aerosol mass concentration detection system which comprises a sheath flow device, an optical detection module, a zero calibration gas circuit module and an air exhaust power module, when mass concentration detection is carried out, aerosol entering the flow dividing cavity of the sheath flow device from the aerosol inlet is divided into two paths, one path flows into the light chamber through the sample gas pipe, the other path is changed into clean gas through the first gas path and the second gas path and then flows into the light chamber through the sheath gas cavity and the gas circulation gap, and sheath flow protection is formed for sample gas; during zero calibration, the exhaust flow of the zero calibration gas circuit module is larger than that of the exhaust power module, aerosol entering the flow dividing cavity from the aerosol inlet completely flows into the first gas circuit, external clean gas flows into the light chamber through the second gas ...

Multi-source heterogeneous data processing method and device

The invention discloses a multi-source heterogeneous data processing method and device. The method comprises the following steps: processing multi-source heterogeneous data to obtain a first data set; based on the security parameter of the data in the first data set, correspondingly marking the data in the first data set to obtain a second data set, and determining an encryption index of the data in the first data set; encrypting data in the second data set according to an encryption mode corresponding to the encryption index to obtain a third data set; and classifying and storing the data in the third data set in the target database according to themes. Thus, the multi-source heterogeneous data are processed, the processed multi-source heterogeneous data are marked according to the security parameters, the marked multi-source heterogeneous data are encrypted based on the determined encryption indexes, and the encrypted multi-source heterogeneous data are classified and stored in the target ...

Polycrystalline diamond, polycrystalline diamond compact and preparation method thereof

The invention provides a polycrystalline diamond, a polycrystalline diamond compact and a preparation method thereof, the polycrystalline diamond compact comprises the polycrystalline diamond and a hard alloy matrix, and the polycrystalline diamond is sintered on the hard alloy matrix. The polycrystalline diamond is formed by sintering at least one kind of diamond powder, and the polycrystalline diamond comprises 90-99 wt% of first diamond powder and 1-10 wt% of second diamond powder according to the total weight percentage of 100 wt%. D50 of the first diamond powder is larger than or equal to 20 microns, and D50 of the second diamond powder is smaller than or equal to 5 microns. By the adoption of the scheme, the particle size distribution of the diamond powder mixture shows double peaks, gaps between the large-particle-size powder are filled with the small-particle-size powder, the filling effect is tighter, the cobalt phase content in polycrystalline diamond is reduced, and the abrasion ...

Pretreatment equipment and dust removal system

The pretreatment equipment comprises an adjusting mechanism, the adjusting mechanism comprises a baffle assembly, the baffle assembly is used for being installed at an inlet of electrostatic dust collection equipment and comprises a first baffle and a second baffle, and the first baffle and the second baffle are provided with a first through hole and a second through hole correspondingly; the first baffle plate is attached to the second baffle plate; a first driving device; the number of the first through holes is at least two and the first through holes are located on the same circumference, or the number of the second through holes is at least two and the second through holes are located on the same circumference, and the first driving device can drive the first baffle or the second baffle to rotate so that the first through holes can be communicated with the second through holes. The first baffle or the second baffle is driven by the first driving device to rotate, the first through ...

Plant tissue culture device

The invention provides a plant tissue culture device which comprises a main shell internally provided with a stirring chamber, a first stirring assembly and a second stirring assembly which are opposite in rotating direction are arranged in the main shell, and the first stirring assembly and the second stirring assembly are each provided with a suction unit close to the bottom of the stirring chamber. On one hand, when culture medium raw materials in the stirring chamber are stirred and mixed, indissolvable substances are usually deposited at the bottom of the stirring chamber, and the suction unit is arranged near the bottom of the stirring chamber, so that the indissolvable substances can be effectively sucked from the bottom. On the other hand, the rotating directions of the first stirring assembly and the second stirring assembly are opposite, so that fluid in a second area between the first stirring assembly and the second stirring assembly is in a disordered state, liquid outlets ...

Cylinder cover integrated with EGR (Exhaust Gas Recirculation) precooling air duct and engine comprising cylinder cover

The utility model discloses a cylinder cover integrated with an EGR (Exhaust Gas Recirculation) precooling air duct and an engine comprising the same. The cylinder cover comprises a cylinder cover body; the EGR pre-cooling air duct is arranged on the inner side of the cylinder cover body, an air outlet of the EGR pre-cooling air duct is located at the rear end of the cylinder cover body, an air inlet of the EGR pre-cooling air duct is located on the edge portion of the exhaust side of the cylinder cover body, and the edge portion of the exhaust side is close to the rear end of the cylinder cover body; fins are arranged on the inner wall of the EGR pre-cooling air channel and used for increasing the contact area between the inner wall of the EGR pre-cooling air channel and gas. And the cooling water jacket is positioned outside the EGR pre-cooling air duct and is used for cooling gas passing through the EGR pre-cooling air duct. The cooling capacity of the built-in EGR cooling channel of ...

Sludge conveying device and plunger pump

The invention discloses a sludge conveying device and a plunger pump, the sludge conveying device is used in the plunger pump, the sludge conveying device comprises a driving part and a crushing part, one end of the crushing part is connected with one end of the driving part, the other end of the driving part is used for being connected with an inlet of a main body of the plunger pump, and the driving part comprises a driving turbine; the crushing part comprises a transmission shaft, one end of the transmission shaft is connected to the driving turbine, the other end of the transmission shaft extends into the crushing part, and after sludge enters the crushing part, the driving turbine is driven to rotate so as to drive the transmission shaft to rotate. Sludge flows to the driving part from the crushing part to push a driving turbine in the driving part to rotate so as to drive the transmission shaft to rotate, the sludge provides power for rotation of the transmission shaft, additional ...

Feeding distributor and sludge drying equipment comprising same

The invention discloses a feeding distributor and sludge drying equipment comprising the same. The feeding distributor further comprises a sealing air bag, the sealing air bag is attached to a shell, and the sealing air bag is arranged on a transmission shaft in a sleeving mode and shields a gap between the shell and the transmission shaft; the feeding distributor comprises an air inlet device, the air inlet device is communicated with the sealing air bag, and the air inlet device only inputs air into the sealing air bag. The transmission shaft penetrates through the shell, the sealing air bag is attached to one side of the shell and shields a gap between the shell and the transmission shaft, and the gap between the shell and the transmission shaft is sealed by inputting air into the sealing air bag. The air inlet device is communicated with the sealing air bag and only inputs air into the sealing air bag, so that the connection between the air inlet device and the sealing air bag is simplified ...

Capacitor-based synaptic network structure with metal shielding between outputs

A neural network device includes a first plurality of synaptic network capacitors, wherein synaptic network capacitors of the first plurality of synaptic network capacitors share a first output terminal. The neural network device also includes a second plurality of synaptic network capacitors, wherein synaptic network capacitors in the second plurality of synaptic network capacitors share a second output terminal. Further, the neural network device includes a metal shield disposed between the first output terminal and the second output terminal. The neural network device may be used as part of an artificial intelligence system.