香氛机

网球乒乓球训练器底座

带企业服务软件图形用户界面的显示屏幕面板

电流互感器（Jade PP）

无轨电车集电设备

动力装置转速采集器（设计6）

A operation protection platform collet for in shaft

... 本实用新型公开了一种用于竖井内的操作防护平台底托，包括与竖井井道适配的矩形底板，在所述底板的四周铰接有翻板，所述翻板的两端均铰接有补接角板，相邻的两个所述补接角板通过插销连接；在所述底板的下方设有多根分配梁，所述分配梁固接在与其垂直的承重梁上，在所述承重梁的两端设有与其铰接的外伸支腿，所述支腿的内端与复位弹簧连接，所述复位弹簧的下端连接在固定杆上，所述固定杆固接在所述承重梁的下方；在所述支腿的内端部下方设有横撑。采用本实用新型在竖井内形成操作防护平台能够有效防止作业面施工时出现工人高空坠落伤害或高空坠物造成的物体打击伤害。 ...

Self-adaptive annular packing tool

A center pipe is of a cylindrical structure, four liquid inlet holes are evenly distributed in the position, close to the end, of the left side of the center pipe in the circumferential direction, and a triangular screw thread is arranged on the outer side of the middle of the center pipe. The sleeve is of an annular structure, and six pin holes are evenly distributed in the right end in the axis direction. The left baffle ring is of a cylindrical structure, a pin groove is formed in the outer side of the middle, a triangular screw thread is arranged on the inner side of the middle, and a 45-degree conical surface is arranged in the right end. The rubber sleeve is of an annular structure, the outer diameter of the middle is larger than that of the two sides, and the left end and the right end are provided with 45-degree conical surfaces. Each right baffle ring is of a fan-shaped structure, ten right baffle rings evenly distributed along the axis form a circular ring, the right end of each ...

Mixed water system rechargeable battery

The invention relates to a battery, in particular to a mixed water system rechargeable battery. Wherein the battery comprises a positive electrode, a negative electrode, an electrolyte and a diaphragm, the positive electrode and the negative electrode are respectively located in aqueous electrolytes of different electrolytes, the negative electrode material is lead or an alloy thereof or a modifier thereof, and the modifier is (a) lead electrodeposited on other substrates or an alloy formed by lead and other metals; (b) lead coated with other conductive substances or an alloy formed by lead and other metals, wherein the other metals are metals with high polarization potential; the negative electrode is located in a single electrolyte, and the single electrolyte is an aqueous solution or hydrogel electrolyte containing lead salt, acid or a mixture thereof, or a mixture of the aqueous solution and hydrogel. The working voltage of the mixed water-based rechargeable battery is higher than that ...

Light control method and device, electronic equipment and storage medium

The invention provides a light control method and device, electronic equipment and a storage medium, and relates to the technical field of data processing. The light control method for the virtual live scene comprises the following steps: acquiring a currently played audio clip and a current virtual light parameter corresponding to the currently played audio clip; calling an anchor light and shadow parameter corresponding to the current virtual light parameter, and determining a real light parameter based on the current virtual light parameter and the anchor light and shadow parameter; transmitting the real light parameters to a real light system to obtain real light, and acquiring anchor image data shot under the real light; and constructing a target virtual live scene according to the anchor image data and the current virtual light parameters. According to the technical scheme of the embodiment of the invention, the virtual light and the real light can be synchronously controlled, and ...

HEAT RADIATION FAN

A heat radiation fan which could be installed on corresponding position of the heat-radiating fins of a CPU or a heat-radiating hole-plate of a computer cabinet, includes: a fan body (3), a fan frame (2) and a fan impeller (1). The fan frame (2) is circular in shape. The fan body (3) is arranged along the outer circumference of the fan frame (2). The fan impeller (1) is installed in the fan frame (2). A rubber layer (4) is arranged at the outer surface of the fan body (3), and the place that touches the eat-radiating fins at upside and downside edges of the fan frame (2). The rubber layer (4) is formed by secondary injection molding. Through holes (31) are set through the upper and lower part at four end corners of the fan body (3). The rubber layers are also set at the inner surfaces of the through holes, after secondary injection molding, the upside edges of the through holes keep level with corresponding upside and downside edges of the fan frame (2). The invention can achieve flexible ...

A DEVICE FOR REMOVING SUGAR FROM DAIRY PRODUCTS

A device for removing sugar from dairy products includes : a tank with a feeding inlet, discharging outlets and observation equipments on it, a low- speed stirrer which is fixed in the tank, at least one high-speed shearer which is fixed in the tank, and the outlets for discharging clear supernatant liquid which are set at middle and low position of the tank.

METHOD AND SYSTEM FOR DETECTING OUTLIER BASED ON MULTIPLE SUPPORT POINTS INDEX

A method for detecting an outlier based on a multiple support points index, comprising: a support point selection step, of reading a data set, and selecting multiple support points from the data set to form a support point set (S11); an index establishment step, of calculating the distance between each object in the data set and the selected multiple support points, using the distance as a coordinate to form multi-dimensional data space, and establishing an index with the multi-dimensional data space (S12); an outlier detection step, of dividing the index into data blocks, and performing a detection on the data blocks for outliers, block by block (S13). Further provided is a system for detecting an outlier based on a multiple support points index. The technical solution avoids data space distortion caused by a single support point, by means of selecting multiple support points and performing distance calculations with a global data set to establish an index, preferably detecting all sparse ...

Construction method of roadbed gravel pile

The invention discloses a roadbed gravel pile construction method, and belongs to the technical field of foundation reinforcement engineering, the roadbed gravel pile construction method comprises the following steps: 1, original ground leveling treatment, 2, construction paying-off, 3, after mechanical equipment enters a site, pile foundation positioning after maintenance is completed, 4, pipe sinking is vibrated to a designed depth, and 5, pipe sinking is completed. The construction method comprises the following steps of (1) feeding, (2) pipe drawing, (3) reverse insertion, (4) pipe drawing, (5) feeding, (6) vibration pipe drawing and reverse insertion, (7) stone supplementary filling construction till top loading, (8) pile forming, repeating the step (3) and continuous construction, and (9) quality detection. According to the construction method of the roadbed gravel pile, the pile is formed through the pipe sinking method according to the technological parameters, the pipe drawing ...

Local oscillator leakage calibration method and device, electronic equipment and storage medium

The embodiment of the invention relates to the technical field of digital signal processing and communication, and discloses a local oscillator leakage calibration method and device, electronic equipment and a storage medium. The local oscillator leakage calibration method comprises the following steps: acquiring a feedback signal of a transmitting signal; the transmitting signal is obtained by converting a service signal and a pre-input special sequence signal; the pre-input special sequence signal is a special sequence signal generated by a longest linear shift register sequence; determining a channel parameter of the service signal through the feedback signal and the special sequence signal; acquiring a local oscillator leakage value of the service signal according to the channel parameter; and calibrating the service signal according to the local oscillator leakage value. According to the local oscillator leakage calibration method provided by the embodiment of the invention, the channel ...

Distributed partial discharge on-line monitoring system

The invention discloses a distributed partial discharge on-line monitoring system, which is characterized in that a signal monitoring system is arranged in a distributed manner to monitor partial discharge signals of power equipment of each monitoring place, and the partial discharge signals are transmitted to a central processing system for unified processing and analysis through optical fibers in a time division multiplexing manner; the problems of instability of long-distance signal transmission and signal attenuation in a traditional detection method are avoided, and the cost of large-range online monitoring is reduced.

Cast-in-place bent cap truss type reinforcing structure and construction method thereof

The invention discloses a cast-in-place bent cap truss type reinforcing structure and a construction method thereof.The cast-in-place bent cap truss type reinforcing structure comprises two truss structures which are fixed to the two sides of a pier body correspondingly and arranged below a bailey beam structure in the extending direction of the bailey beam structure, and each truss structure comprises a cross beam, an inclined strut, a supporting rod and a connecting beam; the cross beam is arranged in the extending direction of the bailey beam structure, the four inclined struts are obliquely connected to the cross beam and form two symmetrical triangular supporting structures, the two supporting rods are supported in the two triangular supporting structures respectively, one end of each supporting rod is fixed to the cross beam, and the other end of each supporting rod is connected with the intersection of the two inclined struts in the corresponding triangular supporting structure; ...

Product production quality monitoring method and system and readable storage medium

The invention discloses a product production quality monitoring method and system and a readable storage medium, and the method comprises the steps: obtaining work order data, and outputting a production material list and a production process list based on the work order data, the work order data at least comprising a product type and a technology process route; matching a preset quality monitoring database based on the product type and the process procedure route to obtain quality influence index data corresponding to the current work order data; machining parameters in the product machining process are obtained, and the machining parameters at least comprise a temperature parameter, a pressure parameter and a liquid level parameter; and comparing the processing parameters with the quality influence index data to screen alarm data, and giving an alarm prompt when the alarm data is screened. According to the method, the production process quality can be effectively monitored, the production ...

Partial discharge signal separation method and device

The invention discloses a partial discharge signal separation method and device. The method comprises the following steps: determining a signal waveform fitting degree characteristic value according to the minimum Euclidean distance between a waveform sequence to be processed and a sample waveform sequence; determining a signal spectrum fitting degree characteristic value according to the minimum Euclidean distance between the to-be-processed spectrum sequence and the sample spectrum sequence; on the basis of the signal waveform fitting degree feature value and the signal spectrum fitting degree feature value, a plurality of signals in partial discharge detection can be effectively separated, and the problem that a real discharge signal is difficult to accurately extract under the condition that a plurality of similar signals exist is particularly solved.

Automatic scraper replacing mechanism of additive manufacturing equipment

The invention provides an automatic scraper changing mechanism of additive manufacturing equipment, which comprises a tool magazine, a scraper changing mechanism, a scraper changing mechanism, a scraper changing mechanism, a scraper changing mechanism and a scraper changing mechanism, and is characterized in that the tool magazine is internally provided with a containing cavity for storing scrapers, and the lower end of the tool magazine is provided with a lower edge; the limiting assembly is arranged at the lower knife edge; the clamping assembly is arranged at the lower end of the tool magazine and located under the lower tool edge, and the clamping assembly is used for clamping the scraper; the tool changing collision plate is arranged in the additive manufacturing equipment; the tool changing sinker bar is installed at the upper end of the tool magazine in an up-down movable mode and located over the lower tool edge, and the lower end of the tool changing sinker bar is inserted into ...

Rotary high-speed switch valve

The invention discloses a rotary high-speed switch valve which comprises a valve element, an O-shaped ring, a dynamic sealing assembly, a pair of angular contact ball bearings, a limited rotation angle motor, an upper valve seat, a lower valve seat and a wave spring. The upper valve seat is mounted on the lower valve seat and forms a valve body with the lower valve seat; the valve core is fixed in the valve body through a pair of angular contact ball bearings; the limited angle motor is fixedly connected with the upper valve seat through a bolt and connected with the valve element. Dynamic and static sealing is realized between the valve core and the valve body as well as between the upper valve seat and the lower valve seat through a dynamic sealing assembly and an O-shaped ring; the wave spring is mounted between the pair of angular contact ball bearings and the dynamic sealing assembly; a flow channel is arranged on the lower valve seat, and a cylindrical through hole is arranged on ...

Electricity-saving control method for vehicle-mounted intelligent key system

The invention discloses an electricity-saving control method for a vehicle-mounted intelligent key system, which adopts a vehicle-mounted energy management electricity-saving control system and comprises an input module, an electricity-saving control module and an output module, the input module comprises whole vehicle power supply change-over switch gear information, vehicle mode configuration information, a whole vehicle network wake-up signal, whole vehicle locking state information, storage battery SOC state information and an inductive unlocking switch state; the output module comprises a whole vehicle power distribution gear control enabling part, a vehicle mode function disabling part, a power-saving relay turn-off enabling part, an automatic power supplement control enabling part and a special scene function energy limiting control part. Different power-saving control measures are adopted for special scenes such as a transportation mode, a rainy day mode and a continuous triggering ...

ELECTROMAGNETIC COIL LIQUID COOLING SYSTEM

An electromagnetic coil liquid cooling system, comprising an electromagnetic coil (10), a guiding device (20), and an insulating and cooling liquid receiving device (30). The electromagnetic coil (10) comprises a wire (11), and the electromagnetic coil (10) is provided with a channel (12) for allowing an insulating and cooling liquid to flow therethrough. The electromagnetic coil (10) is provided with several liquid inlets (13) and liquid outlets (14) which are sequentially and alternately arranged along the extension direction of the channel (12). The liquid inlets (13) and liquid outlets (14) are both in communication with the channel (12). The guiding device (20) is used for guiding the insulating and cooling liquid into the liquid inlets (13), and the insulating and cooling liquid receiving device (30) is used for receiving the insulating and cooling liquid flowing out of the liquid outlets (14). The electromagnetic coil liquid cooling system can enable the wire (11) to be in direct ...

EXTENDED SEARCH ALGORITHM BASED ON TRAJECTORY QUERY WITH INTEREST REGIONS

An extended search algorithm based on a trajectory query with interest regions, comprising the following steps: step 1, initially setting a lower bound LB=0 for a global spatial density correlation and an upper bound UB=+∞ for the global spatial density correlation; step 2, selecting a group of query sources from a query region center; step 3, using a Dijkstra expansion algorithm for each query source to expend a point at a minimum distance each time; step 4, calculating the upper bound and lower bound of a spatial density, and updating LB and UB; step 5, determining whether LB is greater than UB or whether all search radii exceed ε+p.dist/2, if yes, entering the next step, and if not, returning to the previous step; step 6, sorting trajectories according to the value of the upper bound of the spatial density; and step 7, performing further refinement according to the trajectory sequence, and returning a trajectory with a maximal spatial density correlation. According to the algorithm, ...

扩香机

包装袋

欧标充电机

Drain system for removing nitrogen and phosphorus in saline-alkali farmland

The invention relates to the technical field of farmland nitrogen and phosphorus removal, in particular to a saline-alkali farmland nitrogen and phosphorus removal drainage channel system which comprises a drainage channel, a nitrogen and phosphorus adsorption assembly used for removing nitrogen and phosphorus in water is installed in the drainage channel, one end of the drainage channel is fixedly connected with a filter screen, and the top of the drainage channel is fixedly connected with a supporting rod. The bottom of the supporting plate is fixedly connected with a first hydraulic rod and a second hydraulic rod, the output end of the first hydraulic rod is fixedly connected with an impurity cleaning assembly, and the bottom of the impurity cleaning assembly is fixedly connected with a containing plate. When farmland water is in contact with the multiple layers of adsorption plates, nitrogen and phosphorus contained in the farmland water can be adsorbed and removed, after nitrogen and ...

Method for evaluating measurement accuracy of ship RCS (radar cross section) by shipborne phased array radar

The invention relates to a method for evaluating the measurement precision of a ship RCS (radar cross section) by a shipborne phased array radar. The method is characterized by comprising the following steps: step 1, acquiring an RCS measurement result of a moving ship by the shipborne phased array radar; step 2, distance detection precision evaluation is carried out; step 3, performing angle measurement precision evaluation; step 4, RCS actual measurement precision evaluation is carried out; and step 5, giving an evaluation result, outputting an RCS actual measurement precision result, determining whether the target RCS measurement precision meets the evaluation requirement or not according to the measurement environment and the actual error requirement, and if the requirement is not met, correcting the test site, the test equipment and the test method if the requirement is needed. According to the method, the blank of a method for evaluating the RCS measurement precision of a moving ship ...

Usnea longissima endophytic fungus YAFEF048 strain as well as preparation method and application thereof

The invention discloses a Usnea longissima endophytic fungus YAFEF048 strain as well as a preparation method and application thereof. The invention relates to a Usnea longissima endophytic fungus YAFEF048 strain, which is a Usnea longissima endophytic fungus YAFEF048 (Dothichizasp.), and the Usnea longissima endophytic fungus YAFEF048 strain is a Usnea longissima The preservation name is ascochyta; the strain is preserved in the China Center for Type Culture Collection, and the preservation address is Wuhan University, Wuhan, China; the preservation date is November 1, 2021; and the preservation number of the strain is CCTCCM20211345. The compound has a good inhibiting effect on various pathogenic bacteria, and a new way is provided for relieving the threat of the drug resistance of pathogenic bacteria to human health and researching and developing new antibacterial drugs.

Variable impedance transformer with oil level detection function and power flow controller

The invention belongs to the technical field of high and medium voltage direct current power transmission and distribution, and particularly relates to a variable impedance transformer with an oil level detection function and a power flow controller. A detection mechanism used for detecting the oil level is arranged in the variable impedance transformer body and comprises a detection pipe fixedly connected to the bottom of the variable impedance transformer body, a plurality of through holes are formed in the side wall of the detection pipe, a floating plate is slidably connected into the detection pipe, and a fixing plate is arranged on the side, away from the floating plate, of the floating plate. A proximity switch is arranged on the fixing plate, the control box is electrically connected with the proximity switch, through the arrangement of the control box, electric signals of the proximity switch are conveniently received, an oil level low alarm signal is sent outwards, and a worker ...

Landslide disaster automatic identification method based on convolutional neural network

The invention discloses an automatic landslide disaster identification method based on a convolutional neural network, and relates to the field of geological disaster identification, and the method comprises the following steps: building a landslide interpretation database, taking a landslide region in an image as a positive sample, and taking a non-landslide region in the image as a negative sample; constructing and adopting positive and negative samples to train a multi-path PSPNet network to obtain a trained multi-path PSPNet network; and identifying the target image by adopting the trained multi-path PSPNet network, and taking an output result of the trained multi-path PSPNet network as a landslide disaster identification result, thereby completing automatic landslide disaster identification. According to the method, the landslide identification precision is improved, the landslide identification capability is effectively improved, a target area for landslide disaster identification ...

Elastic bent joint type coal mine underground casing device and construction method

The invention provides an elastic bent section type coal mine underground casing device which comprises a plurality of casing bodies which are sequentially connected end to end, each casing body comprises an elastic piece, a sealing part, a first connector and a second connector, the first connectors and the second connectors are arranged at the two ends of the elastic pieces, and the sealing parts are arranged on the surface layers of the elastic pieces to cover the elastic pieces; the two ends of the sealing part are connected with the first connector and the second connector respectively, the two adjacently-connected casing pipe bodies are connected through the first connector and the second connector, the elastic piece 2 serves as a framework structure of the casing pipe bodies, the sealing part 3 is arranged on the surface of the elastic piece 2 to seal the elastic piece 2, the waterproof and pressure-resistant effects are achieved, and the casing pipe bodies have certain flexibility ...

METHOD FOR STIRRING AND DEHULLING HULLS OF GRAINS AND OIL CROP SEEDS

A method for stirring and dehulling the hulls of grains and oil crop seeds, comprising a damping process and a stirring process. In the method, a material in a naturally piled state is stirred; the average pressure and instantaneous partial pressure borne by the grains or the oil crop seed are much lower than that in a rice huller; the number of times of stirring can be controlled in an actual production to achieve an ideal peeling effect; while at the same time, damages to parts that should be protected and production of broken kernels are basically prevented.

ELECTROMAGNETIC COIL COOLING SYSTEM

Provided is an electromagnetic coil cooling system, comprising a liquid storage tank (10) for holding an external insulating coolant, an electromagnetic coil cooling pipe allowing an internal insulating coolant to flow therethrough, and a liquid driving device (50). The electromagnetic coil cooling pipe comprises an electromagnetic coil (20) located in the liquid storage tank (10) and used for being immersed in the external insulating coolant. The electromagnetic coil (20) is provided with a cooling passage (21) through which the internal insulating coolant flows. The liquid driving device comprises a hydraulic cylinder (51), a vacuum tank (55), and an air suction device (54) for pumping the vacuum tank (55). The vacuum tank (55) is provided with a liquid inlet, a liquid discharge port, and an air outlet. One end of the electromagnetic coil cooling pipe is formed as a first end and is communicated with a liquid outlet of the hydraulic cylinder (51), and the cooling system can improve the ...

IMAGE PROCESSING METHOD, DEVICE AND APPARATUS, AND STORAGE MEDIUM

Disclosed are an image processing method, apparatus and device as well as a storage medium. The method is executed by a computing apparatus and comprises: receiving an input image used for predicting a target image (S702); determining contextual features of the input image (S704); determining, based on the size of the target image and the position of the input image in the target image, a first feature set and a second feature set according to the contextual features(S706); adjusting a second feature set according to first feature statistics of the first feature set (S708) to obtain an adjusted second feature set; and generating the target image based on the adjusted second feature set and the first feature set (S710).

FILE PACKAGING METHOD AND DEVICE THEREOF

A file packaging method and a device thereof are disclosed. The method includes: collecting the files to be packaged, each file illustrates with at least one file item, each file item comprises a plurality of file information for describing the content of the file; splitting the file information included in each file item into at least two groups; writing the file information of each group into package file according to the group identification of each group.

METHOD AND DEVICE FOR HANDOFF DECISION

The present invention discloses a method and device for handoff decision in the Long Term Evolution (LTE) system. A device of the invention includes: a module for delivering measurement configuration in an evolved node B (eNB), used for when the measurement configuration is delivered to a mobile device User Equipment (UE), selecting Reference Signal Received Power (RSRP) as a triggering measurement value, and letting RSRP and Reference Signal Received Quality (RSRQ) be reported in reporting measurement values at the same time; a measurement decision module in the eNB, used for when a UE-reported event corresponding to a measurement report on the basis of a handoff which meets the selected triggering measurement value RSRP is received, deciding the relationship between the RSRP measurement values of a neighbor cell and a serving cell, and the relationship between the RSRQ measurement values of the neighbor cell and the serving cell; a module for triggering handoff in the eNB, used for when ...

LOW-TEMPERATURE CURABLE NANO-METAL INK, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

A low-temperature curable nano-metal ink, comprising: nano-metal particles and an ink carrier; the nano-metal particles are a mixture of nano-indium and nano-silver, and the ink carrier comprises: a solvent, a dispersant, a surfactant, a wetting agent, and a tackifier. Also provided are a preparation method for the nano-metal ink, and an application thereof in preparation of flexible electronic devices. The nano-metal ink combines the advantages of low curing temperature of nano-indium and low surface resistance of nano-silver, can solve the problem of excess curing sintering temperature, and can guarantee excellent conductivity of a sintered circuit.

TUNING MEANS, ANTENNA APPARATUS AND TERMINAL DEVICE

Provided in the present application is a tuning means, comprising: a plurality of pins, wherein the plurality of pins comprises: a first pin, a second pin, a third pin and a fourth pin; a reactive element, wherein the reactive element is connected between the first pin and the second pin; a switch assembly arranged between the third pin and the fourth pin; a first internally connected branch, one end of the first internally connected branch being connected to the third pin; and a second internally connected branch, one end of the second internally connected branch being connected to the fourth pin, wherein the other end of the first internally connected branch is connected to the other end of the second internally connected branch to form a head end, and the head end is connected to the first pin. The tuning means further comprises: a signal controller, wherein the signal controller is used for controlling the switch assembly to switch turn-on and turn-off states of the first internally ...

Dry ice atomizing distillation is along with welding quench rifle

... 本实用新型涉及种干冰雾化升华随焊激冷枪，包含弹性压紧装置、喷管、喷头和接触垫片，所述弹性压紧装置包含竖杆、滑台、挡块和弹簧，所述竖杆的上端与挡块螺纹连接，所述竖杆穿过滑台上的竖杆穿孔后竖杆下端与喷头螺纹连接，所述弹簧套设位于滑台和喷头之间的竖杆部分之外；所述喷头上开有喷射孔，两侧开有导气孔与喷射孔相通，喷射孔与喷管相连，喷头下方安装接触垫片，接触垫片上对应喷射孔处设有激冷介质出口。本实用新型干冰雾化升华随焊激冷枪采用弹性压紧装置设计，保证激冷枪随焊枪运动时，底部接触垫片始终与焊接件接触，使激冷枪喷射孔能够与焊缝紧密接触，封闭效果好，防止干冰雾化升华对焊接造成不利影响。 ...

Equipment maintenance period prediction method and system, equipment and readable storage medium

The invention relates to an equipment maintenance period prediction method and system, equipment and a readable storage medium, and the method comprises the steps: obtaining historical equipment data, the historical equipment data comprises a plurality of pieces of data, and each piece of data comprises equipment use data, equipment maintenance data and equipment environment data; classifying the historical equipment data according to the equipment maintenance data; for each type of historical equipment data, calculating an environment grade and a use grade according to an equipment scoring rule; according to a preset calculation rule, the environment grade, the use grade and the equipment maintenance data, determining a period prediction model; obtaining to-be-predicted data; and determining the maintenance period according to the to-be-predicted data, the period prediction model and the target period calculation rule. The problem that the maintenance cost is increased due to misjudgment ...

Regenerated prefabricated protective cover plate adopting asphalt pavement surface layer milling material and preparation method

The invention discloses a regenerated prefabricated protective cover plate adopting an asphalt pavement surface layer milling material and a preparation method, and belongs to the technical field of regenerated prefabricated protective cover plates, the regenerated prefabricated protective cover plate is prefabricated through a process, is extremely dense, high in strength and durable, and the material is low in price, good in performance, convenient to construct and easy to popularize; according to the present invention, the recycling of the old material is achieved, the waste material is changed into the valuable material, the comprehensive pavement performance such as oxidation resistance, low temperature cracking resistance, salt freezing resistance and the like of the soil protection cover plate is improved, and the corrosion (salt corrosion) resistance of the conventional concrete soil protection cover plate is improved; the problems that a conventional soil protection cover plate ...

Method for extracting lithium from lithium-containing electrolytic aluminum electrolyte by using organic acid

The invention relates to the technical field of resource utilization of waste lithium-rich aluminum electrolyte, in particular to a method for extracting lithium from lithium-containing electrolytic aluminum electrolyte by using organic acid, which comprises the following steps: S1, carrying out leaching lithium extraction treatment on waste aluminum electrolyte by using organic acid as a leaching agent, and then filtering to obtain filter residue A and filtrate A; s2, purifying the filter residue A obtained in the step S1 to obtain cryolite, and recycling the cryolite; adding a certain amount of calcium oxide (CaO) into the filtrate A obtained in the step S1, and filtering to obtain filter residues B and filtrate B; and S3, absorbing CO2 gas by using a NaOH solution, and then adding the NaOH solution into the filtrate B obtained in S2 to prepare Li2CO3. The method has the beneficial effects that the resource utilization of the waste electrolyte is realized, and meanwhile, the lithium salt ...

Manufacturing method of transparent skeleton specimen suitable for breeding hybrid sturgeons

The invention provides a manufacturing method of a transparent skeleton specimen suitable for breeding hybrid sturgeons, which is characterized in that a sodium sulfite-ascorbic acid-bivalent copper catalytic mixed solution is used as a fish body transparent specimen oxygen dissolving agent to replace physical bubble removing methods such as needle cylinder suction and the like. The process is mild and efficient, and bone malposition and disengagement caused by mechanical action are avoided.

METHOD FOR BLOCKING LOW-INERTIA BACKFLOW OF EMULSION

... a method for blocking low-inertia backflow of emulsion applied to cold rolling includes the following steps: 1) arranging a rubber baffle (7) at the inlet side of the cold rolling mill and above a strip passing line, and arranging another rubber baffle (10) at the outlet side of the cold rolling mill and above the strip passing line; 2) after changing the rolling pass, putting down the rubber baffle at the inlet side to press against the upper surface of a strip to block emulsion backflow when the rolling speed of the cold rolling mill is less than 4m/s, and lifting up the rubber baffle at the inlet side from the upper surface of the strip when the rolling speed of the cold rolling mill is not less than 4m/s. The rubber baffle at the outlet side is always kept to being at lifting position during this procedure. This blocking method is simple, and it can block emulsion backflow while rolling at low speed.

IRIS RECOGNITION APPARATUS AND METHOD

Disclosed is an iris recognition apparatus, comprising an image acquiring module and an image processing module. The image acquiring module comprises: a light source; a collimating lens; an imaging sensor, a lens, and a beam splitter arranged in order on a first optical axis; as well as a fixation lamp, a plate, and a condenser lens arranged in order on a second optical axis. The first optical axis and the second optical axis intersect perpendicularly at an intersection, and the beam splitter is located at the intersection. The image processing module comprises an image processing device. In the present invention, the image of the human eye iris is acquired by means of the image acquiring module, and the obtained image is sequentially subjected to light alignment, light superposition, three-dimensional reconstruction, and iris restoration in the image processing module, so that the human eye iris can be highly restored.

DISTRIBUTED MINING SYSTEM AND METHOD FOR AVIATION-ORIENTED ELECTRONIC DATA

A distributed mining system and implementation method for aviation-oriented electronic data. The system comprises a data association analysis module, a data association analysis application module, and a data storage module. The data association analysis module acquires training data from a data source, completes establishment of a data association model, provides the model to the data association analysis application module, completes real-time prediction, and displays a result on a screen. The data association analysis application module achieves a function of real-time storage by means of a cloud storage function of the data storage module. The present invention enables real-time data storage and sharing by means of distributed storage of large-scale electronic aviation data, and generates, by employing historical data analysis and a classification algorithm of machine learning, firepower attack prediction from real-time data, thus ensuring accuracy while improving decision efficiency ...

WATER FLOW CONTROLLER AND WATER FLOW CONTROL METHOD

A water flow controller. The water flow controller comprises: a water tank (110), a magnetic control component (120), a sink (130), and an electromagnet (140). A first water outlet (111) of the water tank (110) is connected to a water inlet (131) of the sink (130) via the control component (120). When the electromagnet (140) is in a powered on state, the channel between the first water outlet (111) and the water inlet (131) is in a connected state under the control of the control component (120). When the electromagnet (140) is in a powered off state, the channel between the first water outlet (111) and the water inlet (131) is in a disconnected state under the control of the control component (120). Also disclosed are a water flow control method and a water flow control apparatus. This solves the problem that, when a water flow in the water tank is controlled to flow towards the sink by a component at where a float is provided, the shaft of a lever in the component is prone to being damaged ...

COMMUNICATIONS DEVICE

Provided is a communications device comprising: an antenna structure shared by an NFC circuit and a non-NFC circuit, said antenna structure comprising: a radiating body and an antenna ground; the NFC circuit and radiating body are coupled at a first node by means of an NFC feed path; the non-NFC circuit and radiating body are coupled at a second node by means of a non-NFC feed path; the non-NFC feed path comprises a first capacitor and a second capacitor, the capacitance of the second capacitor being greater than the capacitance of the first capacitor; the radiating body forms a first part between the first node and the second node; the radiating body also comprises a second part; one end of the second part is coupled to the ground of the antenna, and the other end is connected to the first part; the electrical length of the second part is shorter than one-fourth of the wavelength corresponding to the resonance frequency of a low-frequency signal, and the electrical length of the second ...

VOLTAGE CONTROL METHOD, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Provided in the present application are a voltage control method, an electronic device, and a storage medium. The method comprises: monitoring the present power supply voltage; when the present power supply voltage belongs to a high-speed voltage reduction interval, performing high-speed voltage reduction processing on the present power supply voltage by using a preset high-speed PID control parameter; when the present power supply voltage belongs to a medium-speed voltage stabilization interval, performing medium-speed voltage reduction processing on the present power supply voltage by using a preset medium-speed PID control parameter; and when the present power supply voltage belongs to a low-speed constant-current interval, according to the relationship between the present current and a preset target current, performing low-speed voltage reduction processing on the present power supply voltage by using a preset low-speed PID control parameter. According to the actual situation of the ...

On-line measuring device and method for initial permeability of ship steel

The invention relates to the technical field of magnetic conductivity measurement, in particular to a ship steel initial magnetic conductivity on-line measurement device and method.The ship steel initial magnetic conductivity on-line measurement device comprises a solenoid framework, a solenoid coil, a magnetic sensor, supports and a shell, the solenoid coil is wound around the non-magnetic solenoid framework, and the two supports are connected with the solenoid framework; the two sets of supports are symmetrically arranged on the two sides of the solenoid framework, the two sets of magnetic sensors are arranged at the centers of the sides, close to each other, of the two sets of supports respectively, and the solenoid framework and the supports are both arranged in the shell. Compared with a standard magnetic conductivity measurement method, the initial magnetic conductivity of the ship steel can be obtained on line, a ship steel sample does not need to be cut, the influence of residual ...

Wound detection system, device and method

The invention relates to a wound detection system, device and method. The wound detection system at least comprises an acquisition module for acquiring an image of a wound part of a patient and a processing module for processing the image acquired by the acquisition module. The processing of the image by the processing module at least comprises the following steps: processing the image by utilizing a modeling unit to establish a three-dimensional model of the wound part of the patient; and analyzing the three-dimensional model through an analysis unit to obtain characteristic parameters of the wound part of the patient and/or evaluation information of the healing condition of the wound part of the patient. According to the wound detection system, by establishing the three-dimensional model corresponding to the wound part of the patient and analyzing the three-dimensional model, the wound change can be determined, and the wound healing condition can be monitored conveniently. The wound detection ...

Cardiovascular interventional therapy simulation training operation model

The invention discloses a cardiovascular interventional therapy simulation training operation model which comprises a base, a sealing bin is arranged at the top of the base, a sealing assembly is arranged at the bottom of one side of the sealing bin, mounting plates A are symmetrically arranged at the tops of the two sides of the sealing bin, an electric cylinder is arranged on one side of each mounting plate A, and a connecting rod B is arranged at the output end of each electric cylinder. A baffle is arranged on one side of the connecting rod B; through cooperation of the annular plate A, the driving motor A, the bearing seat, the connecting rod A, the driving motor B, the arc-shaped plate A and the driving motor C, in the using process of the cardiovascular model, the model can be automatically adjusted in multiple directions, so that testing is carried out in multiple directions, various data can be conveniently collected, convenience is improved, and the working efficiency is improved ...

ENTROPY METHOD AND DENSITY CLUSTERING METHOD INTEGRATED POWER STEALING DETECTION METHOD AND APPARATUS

An entropy method and density-based clustering method integrated power stealing detection method and apparatus. The method comprises: obtaining smart meter data of users and total energy consumption data in a target area within a time period to be detected to obtain a set of power consumption curves of the users and non-technical loss data (S101); obtaining, according to the set of power consumption curves of the users and the non-technical loss data, measurement indexes for power consumption correlation strength using a maximal information coefficient computing method (S102); obtaining shape anomaly indexes of the curves (S103); dividing, according to the measurement indexes and the shape anomaly indexes, the power consumption curves of the users into normal curves and abnormal curves using k-means clustering, and obtaining power anomaly indexes and shape anomaly indexes (S104); and obtaining power abnormality rankings and shape abnormality rankings of the users to obtain comprehensive ...

Heat supply control method and device based on Internet of Things and readable storage medium

The invention relates to the technical field of house heat supply, in particular to a heat supply control method and device based on the Internet of Things and a readable storage medium. The method comprises the following steps: acquiring Internet of Things information; based on the Internet of Things information analysis, calculating an indoor average temperature; acquiring the temperature attenuation amplitude of the area where the user is located; and the heat supply amount of the heat supply load is calculated based on the indoor average temperature and the temperature attenuation amplitude. The system has the effect of better supplying heat to users.

3D printing equipment and window mirror mounting structure thereof

The invention relates to 3D printing equipment and a window mirror mounting structure thereof, the window mirror mounting structure comprises a receiving disc and an air ring, the receiving disc is provided with an air inlet hole and a through mounting hole, the mounting hole comprises a first section and a second section which are arranged in the axial direction of the mounting hole, the first section is used for mounting a window mirror, and the hole wall of the second section is conical; the air ring comprises an installation section and a ventilation section which are connected, the installation section is connected with the receiving disc, the ventilation section is conical, the ventilation section and the hole wall of the second section are oppositely arranged in a spaced mode to form a first air cavity, the end, away from the installation section, of the first air cavity faces the window mirror, and the air inlet hole is communicated with the first air cavity. Inert gas is blown ...

Detection tool for detecting width of rail bearing groove of iron backing plate

The invention discloses a gauge for detecting the width of a rail bearing groove of an iron backing plate, which comprises a base, a height adjusting device, a left measuring device and a right measuring device, and is characterized in that the height adjusting device is fixed on the base, and the left measuring device and the right measuring device are respectively arranged at the two ends of the adjusting end of the height adjusting device; the left measuring assembly comprises a left sliding assembly and a left clamping plate; and the right measuring device comprises a right sliding assembly, a transverse sliding assembly, a right clamping plate and a second position display. The detection tool has the advantages that the left sliding assembly drives the left clamping plate to move in the longitudinal direction so as to achieve fitting of the side faces of the left bosses at different positions, and the right sliding assembly drives the right clamping plate to move in the longitudinal ...

EMULSION CHANNELING BLOCKING DEVICE FOR INTERMEDIATE-ROLL SHIFTING VACANT SITE

An emulsion channeling blocking device for intermediate-roll shifting vacant site includes a guide rail (1), a support bearing seat (3), an ejection baffle plate (4), a nut (5), a screw rod (6), a coupling (7) and a gear motor (8). The gear motor (8) is fixed on the body of a cold rolling mill, the output shaft of the gear motor (8) is connected with an end of the screw rod (6) through the coupling (7), and another end of the screw rod (6) is connected with the support bearing seat (3) fixed on an emulsion ejection beam (2) by a bearing. The screw rod (6) is provided with a nut (5), and the upper end of the ejection baffle plate (4) is fixedly connected with the nut (5). The ejection baffle plate (4) is fixed at the front side of emulsion nozzles to shield the ejection of the emulsion and is located on the guide rail (1) to translate along the guide rail (1) that is fixed on an ejection beam protective cover. The device of the present invention can shield the ejection beam at the shifting ...

SCREW-SHAPED LED

A screw-shaped LED comprises a high power LED (1), a metal circuit board (2), supply cords (3), and a screw-shaped shell (4). The high power LED (1) and the metal circuit board (2) are both mounted in the screw-shaped shell (4). Wherein the high power LED (1) is fixed on the metal circuit board (2) and electrically connected with the metal circuit board (2). The supply cords (3) are electrically connected with the metal circuit board (2) and pass through the screw-shaped shell (4).

AIR PURIFIER AND AIR DUCT STRUCTURE THEREOF

An air purifier and an air duct structure (1) thereof. A vortex fan (2) is disposed at an air inlet (11) of the air duct structure (1), and an axial fan (3) is disposed at an air outlet (12). A flow turbulence portion (10) is arranged on the inner wall between the vortex fan (2) and the axial fan (3) in the air duct structure (1), and the flow turbulence portion (10) enables the air flow, which is sucked by the vortex fan (2) and then blown towards the axial fan (3) along the inner wall of the air duct structure (1) and is exhausted out of the axial fan (3), to be disturbed, so that at least one part of air flow is distant from the inner wall of the air duct structure (1) when being blown towards the axial fan (3).

HEURISTIC EXTENDED SEARCH EXPANSION ALGORITHM BASED ON TRAJECTORY QUERY WITH SEQUENTIAL INTEREST REGIONS

Disclosed in the present invention is a heuristic extended search expansion algorithm based on a trajectory query with sequential interest regions, comprising the following steps: step 1, initially setting a lower bound LB=0 for a global spatial density correlation and an upper bound UB=+∞ for the global spatial density correlation; step 2, selecting a group of query sources from a query region center; step 3, initially setting the priority of all the query sources to 0, and performing heuristic searching based on priority ranking from each query source; step 4, calculating the upper bound and lower bound of a spatial density, and updating LB and UB; step 5, determining whether LB is greater than UB or whether all search radii exceed ε+p.dist/2, if yes, entering the next step, and if not, returning to the previous step; step 6, sorting trajectories according to the value of the upper bound of the spatial density; and step 7, performing refinement according to the trajectory sequence, and ...

Self-propelled concrete pier column crack detection robot and detection method

The invention relates to the technical field of concrete crack detection, discloses a self-propelled concrete pier stud crack detection robot and a detection method, and aims to solve the problem of automatic detection of concrete pier stud cracks. The detection robot comprises a robot body, a self-propelled mechanical device, a laser ranging device and an ultrasonic device; the control device controls the self-propelled mechanical device to drive the detection robot to automatically move on the surface of the concrete pier column, controls the self-propelled mechanical device to stop running after judging that the detection robot reaches the rising height according to the distance measurement data, and controls the ultrasonic device to obtain ultrasonic data of the current position of the concrete pier column; and crack detection is conducted according to the ultrasonic data, and after the detection duration reaches the preset duration, the self-propelled mechanical device is continuously ...

Water tank floor drain waterproof structure and construction method thereof

The invention belongs to the field of building construction, and particularly discloses a water tank floor drain waterproof structure which comprises a first preformed hole and a second preformed hole which are vertically arranged and coaxial, an embedded pipe is embedded in the second preformed hole, the upper end of the embedded pipe is lower than the upper end of the second preformed hole, a grouting layer is arranged in the second preformed hole, and the grouting layer is arranged in the first preformed hole. The grouting layer comprises a fixing part arranged between the outer wall of the embedded pipe and the inner wall of the second preformed hole and a slope making part arranged between the upper end of the embedded pipe and the upper end of the second preformed hole, the inner wall of the slope making part is in a circular truncated cone shape, and the upper end of the slope making part is a large-diameter end; an isolation layer is fixed to the inner wall of the slope making part ...

POSITION TOP-K KEYWORD QUERY-BASED PRIORITY QUERY ALGORITHM AND SYSTEM UNDER SLIDING WINDOW

A position top-k keyword query-based priority query algorithm and system under a sliding window. The algorithm comprises the following steps: step 1, inputting a constructed quadtree indexing model, a query node and k, and initializing a set of results; step 2, executing a branch trim operation to obtain a set of candidate results; step 3, using a maximum heap C to store each word in the set of candidate results and the score thereof; step 4, when the size of the set of results is smaller than k, sequentially taking a word at a queue head from C, traversing from a root node to a leaf node to find the accurate score thereof and placing same into a queue; step 5, cyclically carrying out step 4, and when the score of the word at the queue head is equal to the accurate score of the word in the leaf node, placing same in the set of results; and step 6, when the size of the set of results is equal to k, returning the set of results. The algorithm and system can effectively trim a search space ...

MULTIFUNCTIONAL MICROVALVE CAPABLE OF CONTROLLING FLOW OF FLUID, MICROFLUIDIC CHIP AND METHOD

A microvalve (8), comprising a first flow guide channel (841) for communicating with microchannels (401, 402, 403, 404) in a chip and a second flow guide channel (842) for communicating liquid storage recesses (11, 12) in the chip to the ambient atmosphere, wherein the first flow guide channel and the second flow guide channel do not communicate with each other. Also provided are a microfluidic chip (100) and a method for controlling the flow of a plurality of fluids in a microfluidic chip. The microfluidic chip (100) comprises a microvalve capable of controlling the flow of a fluid. The microfluidic chip has three position states, so as to control different fluids in the chip to sequentially flow in the chip. The microfluidic chip and the microvalve have simple structures, are convenient to assemble, are reusable, and can avoid the possibility of mutual contamination between fluids.

EMULSION CHANNELING BLOCKING METHOD FOR INTERMEDIATE-ROLL SHIFTING SPACE

An emulsion channeling blocking method for intermediate-roll shifting space involves arranging a spraying baffle (4) on an emulsion spraying beam (2) at an entrance of the intermediate-roll (11,14) of a cold rolling mill. The spraying baffle (4) can move to shield the emulsion spraying beam (2) at the roll shifting space so that the spraying width of the emulsion spraying beam (2) matches with the intermediate-roll (11,14) shifting space and the emulsion is not sprayed to the intermediate-roll (11,14) shifting space. The method enables prevention of emulsion channeling at the intermediate-roll shifting space by changing the spraying area of the spraying beam.

BLOWING-FREE CLEARING METHOD FOR RESIDUAL EMULSION

A blowing-free clearing method for residual emulsion includes the steps of blocking low inertia force backflow of the emulsion, blocking side channeling of the emulsion, blocking emulsion channeling in the intermediate-roll shifting space, blocking the emulsion condensate, rapidly draining the residual emulsion in the emulsion spraying beams, and preventing from splashing. The method enables the residual emulsion to be cleared in a simple and effective manner.

High voltage isolator interlock

... 本实用新型涉及种高压隔离开关联锁装置，包括：衔接在起的下门联锁机构和主轴联锁机构，下门联锁机构设置的挡板位于主轴联锁机构设置的面板侧，下门联锁机构设有联锁杆，联锁杆端部依次铰接有拐臂和挡板；主轴联锁机构设置有同轴的锁架和面板，锁架和面板上同轴设置个操作孔，操作孔内依次设置有复位弹簧、联锁套和多边套，主轴端贯穿复位弹簧后，其端部嵌入联锁套内，主轴端部为多边形，其形状吻合的套入联锁套内壁；联锁套外壁为多边形，其能够形状吻合的套入操作孔的多边形孔段，多边套侧边设有缺口，面板上的操作孔侧周设有两个缺口；联锁装置还配套有操作手柄，操作手柄外周设有凸销，操作手柄端部为多边形，并带有多边形孔。 ...

Automatic change pallet separating mechanism of sprout cultivation equipment

... 本实用新型公开自动化育秧设备的分盘机构，包括机架、触发运输装置以及触发分盘装置；触发运输装置包括第输送装置以及第触发器，第输送装置安装在机架上，第触发器与第输送装置连接；触发分盘装置包括第二输送装置、秧盘升降装置、第二触发器，第二输送装置位于机架上，且位于第输送装置的后方，第二触发器与第二输送装置连接，秧盘升降装置与机架连接，且位于第二输送装置的下方，设置第触发器，用于驱动第输送装置运转，实现秧盘移动，秧盘移动到触发分盘装置下端，秧盘升降装置上升，第二输送装置静止，此时，第二触发器受触发，第二输送装置工作，秧盘升降装置下降，完成了自动分盘；效率较高，劳动强度低。 ...

Method and software platform for calculating residual life of normal-pressure vertical storage tank

The invention relates to a method for calculating the residual life of a normal-pressure vertical storage tank and a software platform. The method for calculating the residual life of the normal-pressure vertical storage tank comprises the following steps: scoring inspection items one by one; calculating scores of items where the same type of items are located; inputting the project score into a software platform, and inputting the storage tank case into the software platform; the software platform calculates the residual life of the storage tank under a single item score according to the item score and the storage tank case; the software platform judges whether the result is reserved or not according to the calculation result of the remaining life of the storage tank; the software platform calculates the weight of each scoring item; and the software platform combines the residual life of the storage tank under a single item score with the weight result of each score item to calculate a ...

Emulsion explosive for preparing barium titanate by explosive synthesis method and preparation method of emulsion explosive

The invention provides an emulsion explosive for preparing barium titanate by an explosive synthesis method and a preparation method of the emulsion explosive, and belongs to the technical field of emulsion explosives. The invention relates to a high-temperature-resistant water-based drilling fluid, which is prepared from the following components in percentage by mass: 55 to 75 percent of ammonium nitrate, 9 to 20 percent of barium nitrate, 8 to 12 percent of water, 1 to 3 percent of span-80 emulsifier, 1 to 4 percent of waste engine oil, 1 to 3 percent of liquid paraffin, 3 to 9 percent of titanium dioxide and 1 to 3 percent of sensitizer. The raw materials in the formula are wide in source, formula parameters are adjustable, the adding amount of barium nitrate and titanium dioxide can be automatically adjusted according to the formula, the yield of barium titanate is controlled, and the synthesis requirement of barium titanate can be further met.

Automobile OTA upgrade task fusing method, device and equipment and storage medium

The invention provides an automobile OTA upgrade task fusing method, device and equipment and a storage medium, and the method comprises the steps: receiving feedback information sent when a target vehicle executes an over-the-air upgrade task; if the feedback information carries the error code of the target vehicle upgrading failure, judging the reason of the target vehicle upgrading failure according to the error code; when it is determined that the upgrade failure of the target vehicle is caused by the upgrade task reason, counting the number of vehicles which fail to upgrade due to the upgrade task reason; and when the number of the vehicles which fail to upgrade due to the upgrade task reaches a fusing threshold value, setting the upgrade task to be in a termination state. According to the method and the device, the problem of upgrading failure of a large-area target vehicle due to the upgrading task is avoided by fusing the upgrading task with the problem, so that the remote upgrading ...

Light-reflecting heat-insulating weather-resistant coating as well as preparation method and application thereof

The invention relates to the field of coatings, and discloses a light-reflecting heat-insulating weather-resistant coating as well as a preparation method and application thereof, and the light-reflecting heat-insulating weather-resistant coating is prepared on the surface of a building by a spraying method. And the coating is prepared from polydimethylsiloxane resin, fluorosilane resin and P25 titanium dioxide. According to the coating, the micro-nano mastoid structure of the super-hydrophobic coating and the light irradiation high reflectivity of the coating are combined, so that the coating has excellent sunlight irradiation heat reflection and weather resistance. Nano titanium dioxide is introduced into the coating, so that the coating has high reflection performance on solar irradiation light with the wave band of 400 nm or above and has high absorption performance on solar irradiation light with the wave band of 150-400 nm, the absorbed solar irradiation light is converted into heat ...

UNIFORM-SPEED SEARCH EXPANSION ALGORITHM BASED ON TRAJECTORY QUERY WITH SEQUENTIAL INTEREST REGIONS

Disclosed in the present invention is a uniform-speed search expansion algorithm based on a trajectory query with sequential interest regions, comprising: step 1, initially setting a lower bound LB=0 for a global spatial density correlation and an upper bound UB=+∞ for the global spatial density correlation; step 2, using a Dijkstra expansion algorithm of the same rate for the center of each query region to expand a point at a minimum distance each time; step 3, calculating the upper bound and lower bound of a spatial density, and updating LB and UB; step 4, determining whether LB is greater than UB or whether search radii exceed ε, ε being a threshold set in advance, if yes, ending searching, and entering the next step, and if not, returning to step 3; step 5: sorting trajectories according to the value of the upper bound of the spatial density; and step 6: performing refinement according to the trajectory sequence, and returning a trajectory with maximal spatial density correlation. Being ...

Method for judging matching degree of portable near infrared spectrum quantitative model and unknown sample

The invention discloses a portable near infrared spectrum quantitative model and unknown sample matching degree discrimination method, which comprises the following steps: constructing a quantitative model by using a partial least square method, and obtaining a load matrix and a score matrix of a PLS principal component; respectively calculating score thresholds of the principal component I and the principal component II, and constructing an elliptical polar coordinate expression by using the two thresholds; mapping the acquired unknown sample spectrum into the principal component to obtain a score value; the score value of the first principal component is substituted into the ellipse polar coordinate expression to obtain predicted score values of the two second principal components to form a judgment interval; and detecting whether the score value of the principal component II of the unknown sample is in the judgment interval, thereby judging the matching degree of the unknown sample and ...

Laser welding device and method for titanium alloy thin-wall part with complex shape surface

The invention discloses a laser welding device and method for a titanium alloy thin-wall part with a complex shape surface. The laser welding device comprises a supporting block, a pressing block and a back protection air pipe. Wherein the shape of the inner wall of the supporting block is matched with that of the titanium alloy thin-wall part to be welded, and the supporting block is used for supporting the titanium alloy thin-wall part to be welded; the pressing block is arranged above the to-be-welded titanium alloy thin-wall part and tightly attached to the upper surface of the to-be-welded titanium alloy thin-wall part, and the pressing block is fixedly connected with the supporting block to clamp the to-be-welded titanium alloy thin-wall part; the back protection gas pipe is placed at the corresponding position, located under a welding seam of the to-be-welded titanium alloy thin-wall part, of the supporting block, and the back protection gas pipe is used for conveying protection ...

METHOD, ELECTRONIC DEVICE AND COMPUTER PROGRAM PRODUCT FOR EXTENDING A MEMORY SYSTEM

The embodiment of the invention provides a method for expanding a storage system, electronic equipment and a computer program product. The method includes, in response to receiving a request to extend a storage system including a first pool of storage resources, adding a second plurality of storage devices to the storage system, the first pool of storage resources including a first plurality of stripes created using a first storage array criterion. The method further includes creating a second pool of storage resources with a second plurality of storage devices, wherein the second stripe width is equal to the first stripe width. The method further includes creating, with a second plurality of storage devices and based on a second storage array criterion, a second plurality of stripes in a second pool of storage resources. The method further includes storing data of at least one stripe of the first plurality of stripes to a corresponding stripe of the second plurality of stripes according ...

Method and system for measuring area of pre-inlet gas flow pipe

The invention relates to a method and a system for measuring the area of a pre-inlet airflow pipe, and the method and the system are based on a device for measuring the area of the pre-inlet airflow pipe based on a regional measuring point, only needs to collect the wind speed information of a measuring point of a far-front section region, and adopt a hierarchical calculation method to measure the area of the pre-inlet airflow pipe. Therefore, the area of the pre-inlet air flow pipe can be calculated by pushing outwards step by step along the axis center of the engine to the measuring line of the inner wall of the test room. The method has the advantages of being simple in measurement method and good in measurement accuracy, and improves the accuracy of a pneumatic additional resistance calculation result. The technology can be used for determining the area of the pre-inlet air flow pipe in aero-engine test bed pneumatic additional resistance correction, the problem of accurate measurement ...

Insect expelling device for agricultural greenhouse

The invention discloses an insect repelling device for an agricultural greenhouse, and belongs to the technical field of insect repelling devices.The insect repelling device is provided with a plurality of linear moving mechanisms and hoses, the number of the linear moving mechanisms is not limited, each linear moving mechanism and hose are installed corresponding to the interior of one greenhouse, and large-scale installation can be conducted; the linear moving mechanism is used for enabling the exteriors of the first box body, the pipe body and the third box body to move to different positions in each greenhouse; the bottom layer spraying mechanism is used for spraying on the bottom surfaces of crop leaves in the greenhouse to strengthen the insect killing and expelling effect, the upper layer spraying mechanism is used for spraying on the upper surfaces of the crop leaves in the greenhouse in a large area, pesticide can be comprehensively sprayed to expel insects, the insect expelling ...

Tank body forming machine

The invention discloses a can body forming machine. The can body forming machine comprises a rack, a forming mold and a lifting device. The forming die comprises an upper die and a lower die, the upper die is installed on the rack, the upper die is provided with a forming cavity, the forming cavity is used for containing a can body, and the upper die is used for completing a set process for the can body located in the forming cavity; the lower die is positioned below the upper die and is used for bearing a can body; the lifting device comprises a first driving assembly, and the first driving assembly is used for driving the lower die to move upwards so that the can body located on the lower die can enter the forming cavity. The first driving assembly is further used for driving the lower die to move downwards so that the can body located on the lower die can be separated from the forming cavity. According to the can body forming machine, the feeding efficiency of the can body can be improved ...

Method for analyzing and evaluating Parkinson's disease patient based on three-dimensional gait

A method for evaluating a Parkinson's disease patient based on three-dimensional gait analysis belongs to the technical field of intelligent medical treatment, and comprises the following steps: S1, a participant wears a wearable device to carry out a corresponding gait task, the gait task is that the number of the participant is 100, the participant walks for a distance of more than 10 meters on a flat ground, and countdown from 100 to 0 is carried out; s2, extracting gait data of the participants from the three-dimensional gait analysis system and carrying out standardization processing on the gait data; and S3, statistical analysis is carried out through the collected gait features. According to the method, the correlation between the gait characteristics and the PD patient under the reciprocal 100 double tasks is researched for the first time, the unstandardized coefficient is obtained through the binary logistic regression model, the Hosier-Lyme Shore test chi-square statistical magnitude ...

Half gear drives rack reciprocating motion's beam -pumping unit

... 本实用新型公布了一种半齿轮带动齿条往复运动的抽油机，包括底座，底座上安装有机架，机架上安装有电机、减速器，减速器的输出端与输入齿轮相啮合，输入齿轮与上输入齿轮、连接齿轮相啮合，连接齿轮与下输入齿轮相啮合；上半边齿轮和下半边齿轮不同时与齿条啮合，光杆贯穿齿条内部并通过抽油杆夹持器在齿条顶端与齿条联接为一体，齿条能够上下滑动，钢丝绳通过设置在机架顶部的定滑轮将配重箱与齿条相连；本实用新型采用齿条爬行带动光杆精确运动，具有较高的传递精度和承载能力，克服了连杆机构传递路线较长和误差累计较大的缺点。齿轮齿条作为本机的主要传动件，传动效率高，承载能力强，可靠度大，寿命长，安装容易。 ...

Double crank shakes lever slider structure

... 本实用新型双曲柄摇杠杆滑块结构是由以下机构组成：主动曲柄、从动曲柄、主、从动曲柄相连摇杠杆，支点、支点座、导轨、连杆、主动曲柄偏心圆轨.所述主动曲柄与从动曲柄相连摇杠杆是铰连，主动曲柄滚轮在摇杠杆直槽内组成平面高副，所述支点是摇杠杆摆动轴，所述支点座在导轨内滑移，支点座由连杆固连，所述主动曲柄偏心圆轨是与连杆端凹口组成平面高副.所述主动曲柄偏心圆轨是在主动曲柄上距该轴心取近点，以轴心为圆心以近点为半径画圆交在其反延长线上的点，在以该点再向主动曲柄反延长线上取长度是从动曲柄两倍为远点，在近点与远点的中心为圆心形成圆的轨迹即为主动曲柄偏心圆轨轨迹。 ...

Refrigerating system and control method for refrigerating system

The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration system and a control method for the refrigeration system, and aims to solve the problem that the precision of cold output and temperature adjustment of an existing refrigeration system is not high. Therefore, the refrigerating system comprises a refrigerating loop composed of a compressor, a condenser and an evaporator, the refrigerating system further comprises a first flow adjusting device and a second flow adjusting device, one end of the first flow adjusting device is communicated with the outlet end of the condenser, and the other end of the first flow adjusting device is communicated with the inlet end of the evaporator; one end of the second flow adjusting device is communicated with the outlet end of the evaporator, and the other end of the second flow adjusting device is communicated with the inlet end of the compressor, so that the flow of the refrigerant discharged from the ...

Composite rubber waterstop with high viscosity and elasticity and production process thereof

The invention discloses a high-viscosity and high-elasticity composite rubber waterstop and a production process thereof, and relates to the technical field of rubber waterstops, in particular to a high-viscosity and high-elasticity composite rubber waterstop and a production process thereof, the high-viscosity and high-elasticity composite rubber waterstop comprises a waterstop body, a deformation ring is arranged on the inner wall of the waterstop body, and the deformation ring is arranged on the inner wall of the waterstop body. A connecting hole is formed in one end of the deformation ring, a limiting groove is formed in the connecting hole, a fixing block is arranged at the other end of the deformation ring, and a connecting piece is connected to the tail end of the fixing block. According to the composite rubber waterstop with high viscosity and elasticity and the production process thereof, through a connecting hole formed in one end of a deformation ring, when two waterstop bodies ...

Wind storage integrated system capacity evaluation method and system based on dynamic heat setting value

The invention belongs to the field of wind storage capacity evaluation, and provides a wind storage integrated system capacity evaluation method and system based on a dynamic thermal constant value, and the method comprises the steps: obtaining the output power of a wind storage integrated system and the actual environment variable of a pre-installation position; calculating an electric-thermal coupling relation of the overhead transmission line between the wind storage integrated system and the main power system based on the dynamic thermal constant value; analyzing the power transmission state of the overhead transmission line according to the obtained electric-thermal coupling relation and the actual environment variable of the pre-installation position; and determining the output capacity of the wind storage integrated system according to the power transmission state of the overhead transmission line and the initial capacity of the wind storage integrated system. According to the method ...

Emulsion injection and control system of single-stand twenty-roller reversible cold-rolling mill

The invention provides an emulsion injection and control system for a single-stand twenty-roller reversible cold-rolling mill, which is characterized in that a first injection area is used for lubricating and cooling a roll gap of a working roll, a second injection area is used for cooling a roller between a middle roll and the working roll, a third injection area is used for cooling strip steel, and a fourth injection area is used for cooling strip steel; the spraying head of the third spraying area is located between the working roller and the spraying head of the fourth spraying area, and the fifth spraying area is used for cooling the back supporting roller; left upper and lower injection beams of the first injection area share a first path of control, and right upper and lower injection beams share a second path of control; the upper left and right injection beams of the second injection area share the third path control, and the lower left and right injection beams share the fourth ...

HEURISTIC EXTENDED SEARCH ALGORITHM BASED ON TRAJECTORY QUERY WITH INTEREST REGIONS

A heuristic extended search algorithm based on a trajectory query with interest regions, comprising the following steps: step 1, initially setting a lower bound LB=0 for a global spatial density correlation and an upper bound UB=+∞ for the global spatial density correlation; step 2, selecting a group of query sources from a query region center; step 3, initially setting the priority of all the query sources to 0, and performing heuristic searching based on priority ranking from each query source; step 4, calculating the upper bound and lower bound of a spatial density, and updating LB and UB; step 5, determining whether LB is greater than UB or whether all search radii exceed ε+p.dist/2, if yes, entering the next step, and if not, returning to the previous step; step 6, sorting trajectories according to the value of the upper bound of the spatial density; and step 7, performing further refinement according to the trajectory sequence, and returning a trajectory with a maximal spatial density ...

POWER LINE COMMUNICATIONS SYSTEM AND METHOD

The present application provides a power line communications system and method. The system comprises a power line network, a sending apparatus, and a receiving apparatus. The receiving apparatus comprises at least two PLC modems connected through a power line link. The sending apparatus sends a signal to a target PLC modem in the receiving apparatus through a power line network. The target PLC modem is at least one PLC modem in the receiving apparatus. The PLC modems in the receiving apparatus simultaneously receive a signal, the PLC modems except the target PLC modem respectively sends the received signal to the target PLC modem through a wireless link, and the target PLC modem restores the signal sent by the sending apparatus according to the signal received through the power line network and the signal received through the wireless link. According to the power line communications system and method provided in the present application, the signal transmission quality is improved, and the ...

Multi-frequency ultrasonic lithotripsy waveguide device for ureter

The invention provides a ureter-used multi-frequency ultrasonic lithotripsy waveguide device, which comprises a slender main body part, a reducing connection part located at the near end side of the main body part, and a lithotripsy part located at the far end of the main body part, the main body part is a solid cylinder, the length is 45-80 cm, and the diameter is 0.8-1.5 mm; the variable-diameter connecting part is provided with at least two stages of variable-diameter structures and is fixedly connected with the main body part in a welding manner; the end, facing the stone, of the stone crushing part is of a non-planar structure. The technical problems that in the prior art, the ureter ultrasonic lithotripsy technology is difficult to produce, and the ultrasonic guide rod energy transfer effect and the lithotripsy effect are poor are solved.

Steel floral tube grouting device

The invention relates to the technical field of grouting devices, in particular to a steel floral tube grouting device. A steel floral tube grouting device is used for grouting into a hole and comprises a floral tube, a first plugging mechanism and a second plugging mechanism, the floral tube is provided with a top end and a bottom end, and a first through hole, a second through hole, a third through hole and a fourth through hole are sequentially formed in the floral tube from the top end to the bottom end. The first plugging mechanism comprises a first main cylinder and a first rubber capsule, the floral tube is fixedly sleeved with the first main cylinder, the first main cylinder is rotationally sleeved with the first rubber capsule, and the first rubber capsule communicates with the first through hole. The second plugging mechanism comprises a first auxiliary cylinder and a second rubber bag, and the first auxiliary cylinder can be slidably arranged on the floral tube in a sleeving ...

Combustion optimization method of natural gas engine cooperating with vortex

The invention discloses a combustion optimization method for a natural gas engine in cooperation with vortex. The method comprises the following steps that basic engine data are obtained; establishing a three-dimensional CFD simulation model coupled with detailed chemical kinetics of the basic engine; the in-cylinder vortex ratio and the in-cylinder vortex motion expressed by the velocity vector are obtained through CFD calculation; performing optimization design on an included angle A of an ignition fuel injection axis and a natural gas injection axis on a top view plane by combining in-cylinder flow characteristics; a simulation model is reconstructed for the newly-designed engine, CFD calculation is carried out, and the combustion duration and the engine heat efficiency are compared with the basic engine; and the process is repeated, optimization calculation is conducted for multiple times, and the optimal included angle A for achieving rapid diffusion combustion of the engine is determined ...

Wafer measuring device and method

The invention discloses a wafer measuring device and a wafer measuring method, which meet industrial detection requirements. Comprising the following steps: probe light emitted by a broadband light source passes through an optical fiber and reaches a first port of an optical fiber circulator, light output by a second port enters a collimator, collimated light enters a scanning system, the scanning system scans and changes the angle of the probe light, the probe light is focused on a wafer sample through a lens, and the wafer sample is focused on the optical fiber circulator. The light reflected by the upper surface of the reference object and the upper and lower surfaces of the wafer sample returns to the optical fiber circulator, is output through a third port and is transmitted to the spectrograph through the optical fiber to form an interference spectrum, and the spectrograph collects the interference spectrum and transmits the interference spectrum to the processing unit. The interference ...

Roots pump with rotor waist molded line as elliptical line and design method thereof

The invention discloses a roots pump with a rotor waist molded line as an elliptical line and a design method of the roots pump. According to the roots pump, a curve, located in a pitch circle, of a rotor profile is an elliptical line and is called as a waist elliptical line; and the curve outside the pitch circle is a conjugate curve of the waist elliptical line. Compared with a rotor profile with an elliptic line at the top, the rotor profile with the elliptic line at the waist part has the characteristic of high volume utilization rate, and the volume utilization rate of the rotor profile can reach more than 55% and is better than that of the rotor profile with the elliptic line at the top by more than 10%.

EXTENDED SEARCH EXPANSION ALGORITHM BASED ON TRAJECTORY QUERY WITH SEQUENTIAL REGION OF INTEREST

An extended search expansion algorithm based on a trajectory query with a sequential region of interest, comprising the following steps: 1, initially setting a lower bound LB=0 for a global spatial density correlation and an upper bound UB=+∞ for the global spatial density correlation; 2, selecting a group of query sources from a query region center; 3, performing a Dijkstra expansion algorithm on each query source, and expending a point of minimum distance at each time; 4, calculating UB and LB of space density, and updating the LB and UB; 5, determining whether LB>UB or whether all search radii exceed ε + p*dist/2, if yes, proceeding to the next step, and if not, returning to the previous step; 6, sorting trajectories according to a value of the space density UB; and 7, further refining according to a trajectory sequence, and returning to a trajectory with maximum spatial density correlation. According to the algorithm, the problem that traditional trajectory searching (TSL) is invalid ...

METHOD AND APPARATUS FOR REGULATING OPERATING DATA

A method and apparatus for regulating operating data, which belong to the technical field of information processing. The method comprises: when detecting a theme package list display instruction, displaying a theme package list in an application interface; when detecting a selection instruction of a user on the theme package list, determining a theme package selected by the user according to the selection instruction; and acquiring operating data in the theme package so that a wind-blowing device blows wind according to the operating data. A theme package selected by a user is determined according to a selection instruction of the user, and operating data in the theme package is acquired so that a wind-blowing device blows wind according to the operating data. Since a user can enable a wind-blowing device to regulate operating data according to different theme packages and to blow wind according to a corresponding wind-blowing mode by selecting different types of theme packages, wind-blowing ...

QUANTILE PROBABILISTIC SHORT-TERM POWER LOAD PREDICTION INTEGRATION METHOD

A quantile probabilistic short-term power load prediction integration method, relating to the technical field of power system analysis. The method comprises: dividing historical load data into two parts, the first part being used for training a single quantile probabilistic prediction model, and the second part being used for determining the weights of multiple prediction methods so as to integrate load predictions; performing bootstrap sampling on the first part of data to obtain multiple new training data sets; for each training data set, training three regression models including a neural network quantile regression model, a random forest quantile regression model, and a gradual gradient regression tree quantile regression model; and establishing, on the second part of data set, an optimization model by using minimization of the quantile loss as a target function, and determining the weights of various quantile regression models, so as to finally obtain a quantile probabilistic load ...

Inclination detection method and device, storage medium and food processor

The invention discloses an inclination detection method and device, a storage medium and a food processor, and belongs to the technical field of inclination detection. When the water pump is controlled to pump water, the current water level of the food processor is detected, and the accumulated water pumping amount of the water pump is recorded; when the current water level reaches the preset water level, inclination detection is conducted on the food processor according to the accumulated water pumping amount, inclination detection on the food processor is achieved through the accumulated water pumping amount of a water pump, and the situation that a water level electrode is not triggered due to different inclination angles or directions is avoided; and the inclination detection accuracy of the food processor is improved.

Audio signal transmission method and system, electronic equipment and readable storage medium

The invention relates to the technical field of data transmission, and discloses an audio signal transmission method and system, electronic equipment and a readable storage medium, and the method comprises the steps: determining to-be-transmitted audio data and a target network address of target audio equipment which plays the to-be-transmitted audio data through responding to an audio transmission instruction; and performing data packaging on the to-be-transmitted audio data and the target network address to obtain a data packet, and transmitting the data packet to the target audio equipment to enable the audio equipment to perform audio playing based on the received data packet. The to-be-transmitted audio data is transmitted to the target audio device in the form of the data packet, so that different to-be-transmitted audio data can be played by different target audio devices, additional hardware storage media are not needed, and the cost and complexity of audio signal transmission are ...