驱蚊手环（时尚款2）

包装瓶

驱蚊手环

Auxiliary asphalt pouring equipment for municipal road cracks

The invention discloses municipal road crack asphalt auxiliary pouring equipment which comprises a supporting plate, a box body is fixedly connected to the top face of the supporting plate, a stirring assembly is installed in the box body, the bottom of the box body is fixedly connected and communicated with a first connecting pipe, the first connecting pipe penetrates through the supporting plate, the bottom of the first connecting pipe is fixedly connected and communicated with a control box, and an adjusting mechanism is installed in the control box. The adjusting mechanism is fixedly connected with a first pouring pipe, the top of the first pouring pipe communicates with the first connecting pipe through a second connecting pipe, the bottom of the first pouring pipe extends out of the control box, and a second pouring pipe is fixedly connected to the side, away from the first pouring pipe, of the bottom of the control box and located above the road surface. And the second pouring pipe ...

Cloud host cleaning method and device, electronic equipment and readable storage medium

The embodiment of the invention provides a cloud host cleaning method and device, electronic equipment and a readable storage medium, and the method comprises the steps: traversing a directed graph of a cloud host, and determining a current vertex of the directed graph; wherein the directed graph comprises a plurality of vertexes, and the vertexes respectively have corresponding tuple information; generating a command interacting with terminal equipment according to the tuple information of the vertex; adding the command interacting with the terminal equipment to a preset initial script to obtain a cloud host cleaning script; and cleaning the cloud host according to the cloud host cleaning script. According to the embodiment of the invention, the cleaning efficiency of the cloud host is improved, and the test efficiency is further improved.

PREPARATION METHOD OF HIGH-PURITY TOTAL GINKGO FLAVONOL GLYCOSIDE AND APPLICATION OF SAME

A preparation method of high-purity total ginkgo flavonol glycoside, comprising the following steps: (1) mixing ginkgo ketone ester powder and a first alkaline solution, followed by dissolution and centrifugation to obtain a supernatant; and (2) subjecting the supernatant to separation with an acid-polar coupled macroporous resin column and to purification with a polyamide column to obtain high-purity total ginkgo flavonol glycoside with a purity of ≥ 90%. The method has a high transfer rate of total flavonol glycoside.

驱蚊手环（时尚款3）

包装瓶

驱蚊装置

驱蚊装置

驱蚊手环

香薰装置(磁浮系列1）

香薰装置（磁浮系列2）

Error calibrating device of metering equipment

The invention discloses an error calibrating device for metering equipment, which comprises a calibrating box for detecting the metering equipment and a connecting wire for lapping the metering equipment, and is characterized in that a wire inlet mechanism is arranged in a storage box of the calibrating box to realize wire inlet of the connecting wire; adaptive wire inlet of different sizes of connecting wires and connector lugs is realized by means of a secondary linkage mechanism on the device. A pressing wheel arranged in a storage box rotates synchronously with a first wire inlet wheel of the wire inlet mechanism through a transmission assembly, power is transmitted to a wire winding shaft through a first-stage linkage mechanism, and when the distance between the pressing wheel and the wire winding shaft is adjusted and increased through the first-stage linkage mechanism, the pressing wheel can rotate synchronously with the first wire inlet wheel of the wire inlet mechanism. By adopting ...

Control method of thermal management system, thermal management system and vehicle

The invention discloses a control method of a thermal management system. The control method comprises the steps of obtaining the temperature of a battery pack; judging whether the temperature of the battery pack reaches a preset temperature value; if yes, the air conditioner module is controlled to operate at the initial refrigerating capacity to cool the battery pack; recording that the battery pack temperature reaches a preset temperature value as a first moment, obtaining the battery pack temperature at a second moment after the first moment, and calculating the temperature rise rate of the battery pack from the first moment to the second moment; judging whether the temperature rise rate is not less than 0 DEG C/min; if yes, the refrigerating capacity of the air conditioner module is increased, the battery pack temperature at the third moment after the second moment is obtained, and the difference between the third moment and the second moment is smaller than that between the second ...

花瓶（Trophy系列）

驱蚊手环

驱蚊装置

驱蚊手环（时尚款4）

轮胎

包装瓶

驱蚊手环

驱蚊手环

Pipeline gesture is magnetism shielding structure for check out test set

... 本实用新型公开了一种管道姿态检测设备用磁屏蔽结构，属于石油化工和天然气管道检测系统结构领域。本实用新型提供的管道姿态检测设备用磁屏蔽结构，包括圆柱状屏蔽罩和搭接于所述屏蔽罩上的屏蔽盖，所述屏蔽盖的中部向下凹陷形成凹陷部，位于所述凹陷部外周的所述屏蔽盖的部分为安装部，安装部用于与所述屏蔽罩连接。本实用新型提供的管道姿态检测设备用磁屏蔽结构保护屏蔽结构内部的敏感器件在弱磁场环境下能够正常工作，同时，屏蔽盖包括安装部与凹陷部，安装部为较厚的承重结构，保证磁屏蔽结构的稳定性，凹陷部凹陷于安装部，减轻了磁屏蔽结构的重量。 ...

HOMOPIPERAZINE ACETHYDRAZIDE DERIVATIVES, PREPARATION METHOD AND USES THEREOF

Disclosed are new homopiperazine acethydrazide derivatives of formula I or formula II, the definition of each symbol is shown as the description. The method for preparing said homopiperazine acethydrazide derivatives, the uses of said homopiperazine acethydrazide derivatives in preparation of medicines for treatment and/or prophylaxis of tumors and/or cancers, the pharmaceutical compositions comprising said homopiperazine acethydrazide derivatives are also disclosed. The present homopiperazine acethydrazide derivatives have effective antitumor activity, and especially they can be used for target therapy and/or prophylaxis of lung cancer, leukaemia, and liver cancer.

Single-sided stepping photoetching alignment method of silicon-silicon bonding buried layer structure

The invention relates to the technical field of silicon-based chips, and discloses a single-sided stepping photoetching alignment method of a silicon-silicon bonding buried layer structure, which comprises the following steps of: obtaining an alignment mark shallow cavity on the single side of a carrier silicon wafer by using a stepping photoetching machine by adopting a photoetching process, and further performing alignment marking in the alignment mark shallow cavity to form an alignment mark deep cavity; forming a silicon oxide protective film on the surface of the alignment mark deep cavity, protecting the alignment mark, forming a support layer shallow cavity in the central area of the carrier silicon wafer by using a photoetching process, aligning a silicon wafer with the same length as the carrier silicon wafer to one surface of the carrier silicon wafer subjected to step photoetching, performing silicon-silicon bonding, and forming a structural layer on the carrier silicon wafer ...

Household automatic mask making machine

... 种家用自动面膜机，本申请两个侧固定架上端通过上部支架相连，两个侧固定架下端通过下部支架相连，两个侧固定架之间有按摩球，每排按摩球通过个固定轴穿过，固定轴两端固定在侧固定架内，侧固定架内有传动机构，侧侧固定架内传动机构的主动部件与外侧转轴端部相连，转轴另端通过传动带与发动机的转轴相连，上部支架后侧有面膜放置盒，下部支架后侧有面膜张紧机构，面膜张紧机构与后侧颈部固定架相连，面膜张紧机构内有张紧轮。本发明可以放置在家中，独自人操作完成面膜贴覆，整个操作无需他人辅助独立即可完成贴膜，并且贴膜效果好，可以达到最佳覆膜效果。 ...

Pharmaceutical composition for resisting porcine epidemic diarrhea virus as well as preparation method and application of pharmaceutical composition

The invention discloses a pharmaceutical composition for resisting porcine epidemic diarrhea virus, and relates to the technical field of medicines. The pharmaceutical composition for resisting the porcine epidemic diarrhea virus comprises panax notoginseng saponins and pulsatilla saponin B4. The medicine for preventing and treating the porcine epidemic diarrhea virus disease can effectively improve the specific antibody titer of animals, reduce the virus load, enhance the number and activity of immune cells and immune media, promote the growth and development of immune organs, comprehensively enhance the immune function and disease defense capability of the animals, and improve the immunity of the animals. The toxic and side effects of vaccines, chemical medicines and antibiotics and potential food safety hazards are overcome, the research and development prospect is optimistic, and the clinical application is wide.

Battery health state assessment method, electronic equipment and vehicle

The invention discloses a battery health state assessment method, electronic equipment and a vehicle. The battery health state assessment method comprises the following steps: S1, acquiring the current battery voltage, the current battery current, the current battery temperature, the current battery charge state, the upper limit battery internal resistance value Rlimit and the initial battery internal resistance value R0 of a battery in real time; s2, screening out static voltage V1, electric starting voltage V2 and starting current I when the battery is in a static state from the current voltage of the battery in the step S1; s3, calculating the current internal resistance value Rn of the battery according to a formula R = (V2-V1)/I; s4, judging whether the current internal resistance value Rn of the battery is greater than the upper limit internal resistance value Rlimit of the battery or not; and S5, when the judgment result in the step S4 is yes, the battery is suggested to be detected ...

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 ...

Intelligent monitoring equipment and intelligent power supply control method

The embodiment of the invention discloses intelligent monitoring equipment and an intelligent power supply control method. According to one specific implementation mode of the method, a power supply circuit, a monitoring circuit, a control circuit, a main control chip and a peripheral device are included, the power supply circuit comprises a battery assembly, a power taking circuit, a power supply capacitor and a booster circuit, and the power supply circuit is used for supplying power to the intelligent monitoring equipment; the main control chip comprises an analog-to-digital conversion interface assembly and a general input/output interface assembly; the monitoring circuit is connected with the power supply circuit and is used for monitoring the power supply circuit; the monitoring circuit is in circuit connection with the analog-to-digital conversion interface assembly; the control circuit is in circuit connection with the general input/output interface assembly; and the control circuit ...

Engine pedestal fan rotor axial force evaluation method capable of being corrected in real time

The invention relates to the technical field of aero-engines, and discloses an engine pedestal fan rotor axial force evaluation method capable of being corrected in real time. The axial force of the fan rotor is solved according to geometric parameters of fan parts, the radial size of a sealing structure between all stages of rotors and inlet static pressure and outlet static pressure of all stages of rotors, the situation that the fan may deviate from a design working line is fully considered in the calculation process, and a fan pressure ratio correction coefficient is introduced to correct the axial force of the fan rotor in real time. The problems that an existing fan rotor axial force calculation model is poor in adaptability and large in calculation error due to the fact that a working line of a current fan component is greatly influenced by an engine control rule can be solved.

Method for eliminating photoetching reworking imprint of metal layer

The invention belongs to the technical field of semiconductor manufacturing, and particularly relates to a method for eliminating photoetching rework imprint of a metal layer, so as to improve the phenomenon of non-uniform color of the metal layer after photoetching rework is completed after the metal layer is coated with a'patterned sheet '. The method specifically comprises the steps that an EBR solution is sprayed on a wafer, the wafer comprises a metal layer and a photosensitive material layer located on one side of the metal layer, the photosensitive material layer comprises a first pattern layer and a second pattern, and the thickness of the second pattern in the direction perpendicular to the metal layer is zero; specifically, an EBR solution is sprayed to the photosensitive material layer; and then, removing the photosensitive material layer by adopting a plasma method. The plasma method comprises the following steps: placing a wafer in a reaction chamber, introducing oxygen, exciting ...

DATA PROCESSING METHOD AND APPARATUS

The present application provides a data processing method and apparatus. The method comprises: determining history data processing information corresponding to a to-be-executed data processing task according to attribute information of the to-be-executed data processing task; acquiring at least two pieces of preference representation information from the history data processing information, wherein the preference representation information can reflect a use preference of the history data processing on data processing manners; and recommending, according to the at least two pieces of preference representation information, a data processing manner to the to-be-executed data processing task from data processing manners used in the history data processing. In the present application, at least two pieces of information that can reflect a use preference of the history data processing on data processing manners are used, so as to recommend a data processing manner, so that the probability of reselecting ...

PREPARATION METHOD FOR HIGH-PURITY TOTAL LACTONES OF GINKGO BILOBAL. AND APPLICATION THEREOF

A preparation method for the high-purity lactones of Ginkgo bilobaL. and an application thereof. The preparation method for the lactones of Ginkgo bilobaL. comprises the following steps: (1) mixing ginkgo biloba extract powder with an alkali liquor, and performing dissolution and centrifugation to obtain precipitate; and (2) purifying the precipitate by means of a silica gel column, and performing recrystallization to obtain an enrichment of the lactones of Ginkgo bilobaL. The purity of the lactones of Ginkgo bilobaL. is greater than or equal to 80%. The yield of the total lactones of Ginkgo bilobaL. is high.

STREPTOCOCCUS PNEUMONIAE PROTEIN ANTIGEN, AND PREPARATION METHOD AND USE THEREOF

Provided are a fusion protein of a pneumococcal surface adhesin A (PsaA) and a pneumococcal surface protein A (PspA), and preparation method and use thereof. Also provided are a nucleic acid for encoding the protein, carrier and cell for expressing the protein, and vaccine composition comprising the protein.

GINKGO KETO ESTER TABLET AND PREPARATION METHOD THEREFOR

Provided are a ginkgo keto ester tablet, preparation method therefor, and use thereof. The ginkgo keto ester tablet is prepared by mixing a raw material of ginkgo keto ester and auxiliary materials. On the basis that the total weight of the ginkgo keto ester tablet is 0.25-0.26 g, the following conditions are met: the content of rutin is less than or equal to 1.60 mg per tablet; the content of rutinoside is less than or equal to 0.160 mg per tablet; the content of bilobalide is 1.04-2.08 mg per tablet; the content of ginkgolide J is 0.04-0.2 mg per tablet; the content of alcohol residue is less than or equal to 0.2 mg per tablet; the content of biflavone is less than or equal to 0.008 mg per tablet; and the contents of genistin and ginkgolide M are both 0.

Method for continuously preparing sulfonyl chloride compound by using micro-reaction device

The invention discloses a method for continuously preparing a sulfonyl chloride compound by using a micro-reaction device. The micro-reaction device comprises an atomization feeding system and a micro-channel reactor, reaction materials including mercaptan, thionyl chloride and hydrogen peroxide are converted into aerosol in the atomization feeding system under the action of air with set pressure, and the aerosol enters the micro-channel reactor to react. And carrying out conventional treatment on the reaction product to obtain a corresponding sulfonyl chloride target product. Compared with an existing sulfonyl chloride compound preparation method, the method for preparing the sulfonyl chloride compound has the advantages that the production cycle is greatly shortened, the production efficiency is improved, the product quality is improved, meanwhile, the device in the method is easy and convenient to operate, the equipment investment cost is low, and the method can be applied to preparation ...

Pole-mounted switch voltage signal measuring device and pole-mounted switch power-off control method

The embodiment of the invention discloses a pole-mounted switch voltage signal measuring device and a pole-mounted switch power-off control method. The pole-mounted switch voltage signal measuring device comprises a control unit, a pole-mounted switch, a pole-mounted switch controller and a voltage acquisition unit, the control unit and the voltage acquisition unit are arranged on the pole-mounted switch controller; the voltage acquisition unit comprises a first voltage amplification unit, an isolation unit and a second voltage amplification unit; the first voltage amplification unit is connected with the pole-mounted switch circuit; the isolation unit is in circuit connection with the first voltage amplification unit and the second voltage amplification unit; the control unit is in circuit connection with the second voltage amplification unit. The pole-mounted switch voltage signal measuring device is used for measuring the voltage signal output by the pole-mounted switch, so that the ...

Unmanned aerial vehicle control method and device

The invention provides an unmanned aerial vehicle control method and device, and relates to the technical field of unmanned aerial vehicles. The method comprises the steps of receiving a task instruction corresponding to an unmanned aerial vehicle; the task instruction is analyzed, a current corresponding working mode of the unmanned aerial vehicle is judged, and the working mode comprises an air flight mode, an air landing mode and a ground operation mode; an expected track of the unmanned aerial vehicle in the working mode is obtained, and the expected track is planned by a planning unit installed on the unmanned aerial vehicle; in the working mode, operation control is conducted on the unmanned aerial vehicle according to the expected parameters and the real-time parameters of the unmanned aerial vehicle, so that the actual movement track of the unmanned aerial vehicle conforms to the expected track. In the application, the working mode of the unmanned aerial vehicle can be determined ...

Unmanned aerial vehicle inspection method

The invention discloses an unmanned aerial vehicle inspection method. The method comprises the following steps that a mechanical arm assembly is installed in a to-be-inspected area needing to be monitored and stayed; acquiring a hovering flight instruction of the unmanned aerial vehicle at an expected position where the unmanned aerial vehicle needs to be monitored and stays in the to-be- Acquiring real-time position and attitude information of the unmanned aerial vehicle; generating a control instruction according to the hovering flight instruction, the real-time position and the attitude information; hovering of the unmanned aerial vehicle at an expected position is achieved through the control instruction, and position information after hovering of the unmanned aerial vehicle is sent to the mechanical arm assembly; the mechanical arm assembly obtains the hovering position of the unmanned aerial vehicle and conducts corresponding stretching action to be in butt joint with the unmanned ...

一种基于MIMO CDMA的接收方法

The present invention provides a receiving method based on MIMO CDMA, characterised in, the transmitting terminal sends separated signals by using at least two transmitting antennas; the receviing terminal receives the signals transmitted from the transmittnig terminal by using at least two receiving antennas, and resumes the signals transmitted from the transmitting terminal in the light of the maximum-likelihood criterion and the characteristic of MIMO CDMA in the Rayl-fading chanel. The present invention is an algorithm wtih less complexity which performs receiving separately according to the characteristic of the spreaded signals in the multipath channel, and it is used for MIMO CDMA system, and it adapts to both simple carrier wave system and multi-carrier wave system of MIMO CDMA. This invention provides an algorithm with less operational complexity for the combination of MIMO and CDMA, and supports a condition for the application of this two techniques.

Anti-interference intelligent antenna system

The invention relates to the technical field of communication antennas, and provides an anti-interference intelligent antenna system, which comprises a base, a first rotation driving device fixed on the base, a vertical central rotating shaft connected to the output end of the first rotation driving device, a U-shaped bracket connected with the vertical central rotating shaft, and an antenna assembly connected with the U-shaped bracket, a second rotation driving device used for driving the horizontal pivot to rotate is arranged on the outer side of the U-shaped support. A support is rotationally arranged on the outer side of the vertical center rotating shaft and connected with a third rotation driving device, vertical supporting pipes are arranged at the two ends of the support, the two vertical supporting pipes are arranged at the two ends of the support in a spaced mode, a barrier plate is arranged at the upper ends of the vertical supporting pipes, and a first signal receiver is arranged ...

Geological sample pretreatment device

The invention provides a geological sample pretreatment device, and relates to the technical field of geological exploration, and the geological sample pretreatment device comprises a rack, a placing mechanism, a drying member, a cooling member and a separating member; the placing mechanism is mounted at the left end of the rack; the drying piece is mounted on the rack through bolts; the cooling part is installed on the rack and located on the right side of the drying part. The height of a baking lamp can be adjusted through stretching and retracting of a second hydraulic rod, so that moisture in the geological sample is dried through the baking lamp, after drying, a motor drives a connecting piece to rotate, a movable frame slides left and right in a reciprocating mode, and therefore air is sprayed to the geological sample on a conveying belt in a reciprocating mode through a spray head, and the geological sample is cooled; the vibrator vibrates to drive the discharging hopper to shake ...

VALUE BILL IDENTIFYING METHOD

A value bill identifying method comprises: step 1, collecting color data of to-be-detected value bills by using a color collection device comprising multiple color sensors, and preprocessing the collected color data (102); step 2, extracting corresponding characteristics in the preprocessed color data (103); step 3, matching the extracted characteristics with a characteristic template set corresponding to each type of the value bills to obtain corresponding matching scores, and using the characteristic template having a highest score as the corresponding matched template of the color data; and step 4, determining the types of the value bills according to the matching results (104). In the method, value bills are identified by using trend changes of a stable sub-segment average value set of color data, so that the problem of color shift of the color data can be overcome, and the value bills are accurately identified.

Automobile electric appliance test bench

The utility model discloses an automobile electric appliance test bench, which relates to the technical field of automobile electric appliances, and specifically comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a support, the interior of the support is fixedly connected with a motor, the output end of the motor is fixedly connected with a transmission rod, the surface of the transmission rod is rotatably connected with a mounting seat, and the mounting seat is fixedly connected with the support. The surface of one end of the transmission rod is fixedly connected with driving bevel gears, the surfaces of the driving bevel gears are connected with driven bevel gears in a meshed mode, and the two driving bevel gears and the two driven bevel gears are arranged at the two ends of the transmission rod respectively. According to the automobile electric appliance test bench, through the arrangement of the motor, the automobile electric appliance test bench ...

Three-dimensional high-pressure bottom plate water inrush model test device and test method

The invention belongs to the technical field of coal mining simulation, and relates to a three-dimensional high-pressure bottom plate water inrush model test device and a test method.The left side wall and the right side wall in a model test main box body are provided with surrounding rock load loading systems, and an overlying strata load loading system is arranged above the model test main box body; the water supply pressurization and pressure stabilization system is connected with the model test main box body through a pipeline, the coal seam excavation simulation system is arranged in the model test main box body, the master control system is connected with the water supply pressurization and pressure stabilization system and the overlying strata load loading system, and the data acquisition system is connected with a sensor arranged on the model test main box body. A coal seam excavation process under different construction conditions and different stratum conditions is realized in ...

Compound ketoconazole preparation for pets and preparation method thereof

The invention relates to the technical field of medicine manufacturing, in particular to a compound ketoconazole preparation for pets and a preparation method of the compound ketoconazole preparation. The compound ketoconazole preparation comprises the following components in parts by weight: 0.5-5 parts of traditional Chinese medicinal materials, specifically comprising platycodon grandiflorum, radix angelicae, eucalyptus leaves, honeysuckle, dandelion, wild chrysanthemum, folium artemisiae argyi and radix rehmanniae preparata; 0.3 to 5 parts of metronidazole; 0.5 to 10 parts of ketoconazole; 5-15 parts of an auxiliary agent; and 8-40 parts of an auxiliary material. The compound ketoconazole preparation is a Chinese and western medicine combined preparation, the preparation steps are simple, the operation is easy, and all the components can be uniformly mixed; the traditional Chinese medicine extract is mild and safe in medicine property and has sterilization, disinfection and anti-inflammatory ...

Method for testing main shaft bearing of engine of fighter

The invention belongs to the technical field of bearing test, and particularly relates to a fighter engine main shaft bearing test method. Comprising a durability test, a performance test, a lubricating oil interruption test, an over-temperature test, an over-rotation test, a gyroscopic moment test and a misalignment test. According to the fighter engine main shaft bearing test method, on the basis of an existing test assessment method, multiple assessments for limiting working conditions are added, so that the use boundary of the engine can be basically covered, and the comprehensiveness of the assessments is improved; the purpose of checking the adaptability of the bearing to the whole engine working condition as much as possible through a tester test before the engine is assembled is achieved; and meanwhile, a programming method of each test item is provided, and higher operability and engineering practical significance are achieved.

Tool for directly decomposing split sections of outer culvert casing in complete machine state of turbofan engine

The invention relates to the technical field of aero-engines, and discloses a tool for directly decomposing a split section of an outer culvert casing in the complete machine state of a turbofan engine, the tool comprises a base, and a supporting seat and a supporting column are mounted on the base; the two supporting columns are arranged on the two sides of the whole ring section correspondingly. The two supporting columns are each provided with a force bearing pin capable of fixing an auxiliary installation section of the whole-ring-section reinforcing ring. A C-shaped frame is arranged between the two supporting columns; a bolt hole is formed in the C-shaped frame, and a force transmission pin capable of limiting the reinforcing ring is inserted into the bolt hole. The reinforcing ring is further limited and fixed by inserting the force transmission pin into the bolt hole, so that the whole ring section of the engine can be axially and horizontally restrained while the outer ring casing ...

Double-guide-rail zoom mechanism, optical measurement equipment and method

The invention relates to a double-guide-rail zoom mechanism, optical measurement equipment and method, and the mechanism comprises a support, a main lens cone, a first guide rail assembly, a first optical assembly, a second optical assembly, a second guide rail assembly, a second optical assembly, a transmission assembly, and a first drive unit. By adopting the first guide rail assembly and the second guide rail assembly to fix the first optical assembly and the second optical assembly respectively, the movement smoothness and the movement precision of the first optical assembly and the second optical assembly relative to the main lens barrel are improved; the intersection point of the radial connecting line of the two second guide rails and the radial connecting line of the two first guide rails is located on the central axis of the main lens barrel, and the limited space in the main lens barrel is reasonably utilized, so that the whole double-guide-rail zoom mechanism is compact in structure ...

METHOD OF PREPARING TAUROURSODEOXYCHOLIC ACID BY BIOTRANSFORMATION AND APPLICATION THEREOF

A method of preparing tauroursodeoxycholic acid by biotransformation and an application thereof, comprising genetic codon optimization, engineered bacteria construction, engineered bacteria cultivation, substrate transformation, and product preparation. Tauroursodeoxycholic acid is prepared by transforming a substrate by means of direct fermentation of engineered bacteria, and the substrate is taurochenodeoxycholic acid. The substrate may reach 250 g/L in concentration, the reaction time is short, the transformation rate of the substrate reaches 98% and above, and the obtained product reaches 99% and above in purity; cyclic regeneration of NAD+ in the reaction system helps greatly reduce the usage of coenzyme NAD+, the cost of enzyme catalysis reaction is reduced, and industrial amplification is benefited. Steroid dehydrogenase and coenzyme regeneration enzyme are connected by a flexible polypeptide sequence to construct a fusion protein polymer, binding distances to the substrate and the ...

GINKGO BILOBA LEAF EXTRACT CAPSULE AND PREPARATION METHOD THEREOF

Provided are a ginkgo biloba leaf extract capsule and a preparation method and application thereof. Preferred preparation steps and conditions thereof are used to obtain a ginkgo biloba leaf extract capsule of good quality. Compared with a ginkgo biloba leaf extract capsule prepared by a conventional method, the ginkgo biloba leaf extract capsule of the present invention has stable quality, a low failure rate, and the ginkgo biloba leaf extract capsules obtained from different batches are consistent. Specifically, the amount of ginkgolic acid in the ginkgo biloba leaf extract capsule of the present invention is effectively controlled, so as to avoid the use of a ginkgolic acid-rich raw material in the the ginkgo biloba leaf extract capsule, thereby effectively increasing the safety of the ginkgo biloba leaf extract capsule.

Prestressed anti-floating anchor rod and stratum waterproof construction method

The invention relates to a prestressed anti-floating anchor rod and a stratum waterproof construction method. The prestressed anti-floating anchor rod comprises an anchorage device, a H-shaped water stop steel plate, an anchoring body, an extrusion anchor, a guide frame and a grouting pipe. An anchor rod hole is formed below the building bottom plate, the anchor cable and the grouting pipe penetrate through the building bottom plate and extend into the bottom of the anchor rod hole, and an anchoring body is poured in the anchor rod hole; a H-shaped water stop steel plate and a lower sealing waterproof structure are arranged on the bottom face of the building bottom plate, and an upper sealing waterproof structure is arranged below the top face of the building bottom plate. The structure has the beneficial effects that the upper sealing waterproof structure is arranged on the upper portion of the bottom plate, and the H-shaped water stop steel plate is arranged on the lower portion of the ...

Human body spine demonstration model in ice and snow sports

The utility model discloses a human body spine demonstration model in ice and snow sports, which comprises a demonstration base, a mounting cavity is formed in the demonstration base, cylinders are fixedly mounted on two sides of the bottom of the mounting cavity, and output ends of the two cylinders are fixedly connected with two sides of the bottom of a moving plate respectively. According to the human body spine demonstration model in the ice and snow movement, the air cylinder and the motor are arranged, so that the angle and height of the human body spine model can be adjusted at will during demonstration, display is more sufficient, the spring and the sliding ball can be buffered, the model is more stable during rotation, and the L-shaped telescopic rod telescopically extends along with up-down movement of the model. The stability is further improved, the light supplementing lamp automatically supplements light when the external environment is dark, the demonstration effect is further ...

Master-slave type whole vehicle electric energy management system and method and electric vehicle

The invention provides a master-slave type whole vehicle electric energy management system and method and an electric vehicle. The master-slave type whole vehicle electric energy management system comprises a master control module, a slave control module, a power battery, a low-voltage storage battery, a high-voltage load, a low-voltage load, a direct-current converter and a low-voltage load controller. The main control module obtains high-voltage use load power and a motion driving power request of the vehicle; the slave control module estimates the electric power of the low-voltage load and feeds back the estimation result and the state information of the low-voltage storage battery to the master control module; the main control module estimates the electric energy demand of the whole vehicle according to the electric power of the low-voltage load, the use power of the high-voltage load and the motion driving power request of the vehicle, and selects to carry out power limitation or closing ...

Method for realizing anti-counterfeiting of mobile phone screen by using moire fringe principle

The invention discloses a method for realizing anti-counterfeiting of a mobile phone screen by using a moire fringe principle. The method comprises the following steps of: 1, inputting a basic function through software to obtain a corresponding function image; 2, modifying and deforming the basic function parameters and stripe colors to generate rich colored stripes; 3, superposing two or more than two groups of colored stripes, and generating a new-color moire stripe pattern at the superposed part; 4, calculating an equation of moire fringes generated by curved grid superposition; 5, respectively printing the patterns of the areas with different colors on transparent paper, mutually overlapping to obtain a colored pattern, taking a mobile phone screen as a grid, overlapping the colored pattern and the grid, enabling different moire fringe patterns to appear in the areas with different colors, and printing the finally generated pattern as a correct overlapped pattern to the lower right ...

Embedded insulating layer heterogeneous engineering and source engineering double-gate tunnel field effect transistor and preparation method thereof

The invention relates to an embedded insulating layer heterogeneous engineering and source engineering double-gate tunnel field effect transistor and a preparation method thereof. The problems that the SS of an existing DGTFET is still large, and the on-state current of the DGTFET is low are solved. Comprising a source region, a SiO2 insulating layer, a channel region, a drain region, a silicon-based epitaxial layer and a substrate, an embedded groove is formed in the middle of the upper end of the channel region; the source region is arranged in the embedded groove; the SiO2 insulating layer is arranged between the lower end surface of the source region and the channel region; a high-k gate dielectric layer and a low-k gate dielectric layer are arranged on the left side and the right side of the channel region from top to bottom, and the high-k gate dielectric layer and the low-k gate dielectric layer form a heterogeneous gate dielectric layer; a drain electrode is arranged below the drain ...

NEWS PROCESSING METHOD, APPARATUS, STORAGE MEDIUM AND COMPUTER DEVICE

A news processing method, an apparatus, a storage medium and a computer device, the method comprising: acquiring a word vector of news to be identified (101); acquiring a word vector of an event and a time node of the event (103); on the basis of a degree of similarity between the word vector of news to be identified and the word vector of the event, determining a relevant event of the news to be identified, and determining a corresponding time node in the relevant event of the news to be identified (105), and determining whether the news is in effect according to the time node (106).

Cadmium metal organic framework material, composite membrane material and preparation method and application thereof

The invention discloses a cadmium metal-organic framework material (Cd-MOF), a composite film thereof, a preparation method of the composite film and application of the composite film in self-driven light-induced organic reaction. According to the invention, a friction nano generator (TENG) is assembled by using Cd-MOF and a composite membrane material thereof, and the influence of Cd-MOF materials in different proportions on the output performance of the TENG is explored, so that an azidation reaction of a self-driven light-induced C-H bond is realized. The Cd-MOF synthesis is simple, convenient, easy and controllable, the output performance of TENG is regulated and controlled from the molecular structure, the application field of the metal organic framework material is widened, and the selection range of the friction layer electrode material is enriched. According to the TENG device constructed by the invention, 14 1-watt visible light lamp bead groups are lightened through self power ...

PM2.5 concentration detection device

The invention belongs to the technical field of PM2.5 concentration detection, and discloses a PM2.5 concentration detection device which comprises a detection box and a detection assembly, an air inlet box is installed on the top of the inner wall of the detection box, a first fan and a second fan are sequentially installed on the left side and the right side of the air inlet box, an air passing pipe is fixedly connected to the top of the air inlet box, and an air outlet pipe is fixedly connected to the top of the air passing pipe. A cover plate is mounted at the top of the detection box in a press fit manner, a sleeve is fixedly mounted at the top of the cover plate, and a limiting column is movably inserted into the top of the sleeve. According to the device, air entering the inner cavity of the air inlet box is guided through a quarter arc groove in the inner wall of the air guide block, PM2.5 in the blended air is distributed more evenly, the circulation sectional area of the air is ...

Door guard plate middle plug-in with solid geometric textures and manufacturing method of door guard plate middle plug-in

The invention discloses a solid geometric texture door protection plate middle plug-in and a manufacturing method thereof, and belongs to the technical field of automobile parts, the main body structure of the door protection plate middle plug-in is of an upper-layer structure and a lower-layer structure, and the upper-layer structure and the lower-layer structure are respectively a body ABS layer and a solid geometric texture TPE layer, the body ABS layer comprises the following components in percentage by mass: 40%-50% of acrylonitrile, 25%-30% of butyl ethylene and 10%-15% of styrene; the solid geometric texture TPE layer comprises the following components in percentage by mass: 70-80% of SBS/SEBS, 5-10% of environment-friendly rubber oil, 8-10% of resin and a TPE mixed modified material. Through the improved design of structure innovation and process optimization, the middle plug-in of the door protection plate has the advantages of being high in quality, low in cost and light in weight ...

TWIN-ENGINE TWIN-PROPELLER AIRBOAT

A twin-engine twin-propeller airboat, comprising a boat body (1), an engine system (2), a speed reducer set, a propeller system (3), a steering system (4), and a control system. An upper deck of the boat body (1) tilts forward, with a lower front end and a higher rear end. The engine system (2) is located at the 1/3 position at the rear of the boat body (1) and comprises two engines (21). The engine system (2) is connected to the propeller system (3) by means of the speed reducer set, so that the engine system drives the propeller system (3). The steering system (4) is a rudder (14) vertically disposed at the stern. The rudder (14) is connected to a handle or a steering wheel in the control system by means of a handle control and assisting device. After the boat body (1) is launched, the deck is naturally in a horizontal state, and the axis of a driving shaft (10) of the propeller system (3) is parallel to the horizontal plane. The airboat is widely applicable, and has a traveling capability ...

BIOLUMINESCENCE ASSAY KIT OF HUMAN CARBOXYLESTERASE 1, METHOD FOR USE AND APPLICATION THEREOF

Provided are a bioluminescence assay kit of human carboxylesterase 1, a method for use and an application thereof. The kit comprises an A liquid, a B liquid, a C liquid, and a quality control standard. The A liquid is a 100 mM phosphate buffer solution, with pH = 5.5-10, and preferably a buffer system with pH of 6.5. The B liquid is a 0.1-10 mM solution which contains a human carboxylesterase 1 specific biological probe substrate, wherein a solvent is dimethyl sulfoxide. The C liquid is a luciferin detection reagent. The quality control standard is a phosphate solution with 5 mg/ml of hCE1 and pH of 6.5. The human carboxylesterase 1 specific biological probe substrate is 4,5-dihydro-2(6-hydroxy-2-benzimidazole)4-carboxylic acid thiazole methyl ester or 4,5-dihydro-2(6-amino-2-benzimidazole)4-carboxylic acid thiazole methyl ester. The kit can be used for detection of existence of hCE1 in various biological samples and quantitative assay of enzyme activity thereof, and can also be used for ...

Cadmium metal-organic framework material, preparation method and self-driven electro-catalysis application

The invention discloses a cadmium metal-organic framework material, a preparation method and self-driven electro-catalysis application, and particularly relates to application of the cadmium metal-organic framework (Cd-MOF) material with a porous structure to assembly of a friction nano generator (TENG) so as to realize bromination reaction of Cd-MOF-TENG self-driven electro-catalysis site selective aryl compounds. According to the preparation method disclosed by the invention, the combined action of the tetracarboxylic acid ligand and the bridging ligand is utilized, the porous Cd-MOF is constructed through self-assembly with cadmium ions, and the porous Cd-MOF is used as a friction electrode material to assemble TENG, so that the selection range of friction layer electrode material types is expanded, the application field of the MOF material is also widened, and the experimental result shows excellent stability; the bromination reaction of the self-driven electrocatalytic aryl compound ...

Vitex negundo-silver particle and fingerprint detection method and application thereof

The invention provides a Vitex negundo-silver granule and a preparation thereof. The invention further provides a detection method of the fingerprint spectrum of the Vitex negundo-silver granules. The invention further provides a construction method of the standard fingerprint spectrum of the vitex rotundifolia-silver particles and a quality detection method of the fingerprint spectrum of the vitex rotundifolia-silver particles. In addition, the invention provides a method for detecting the contents of the five components in the Vitex negundo-silver granules and a method for screening fingerprints of multiple medicinal materials in the Vitex negundo-silver granules. According to the Vitex negundo-silver particles and the fingerprint detection method and application thereof, the Vitex negundo-silver particles with excellent quality can be obtained, the high performance liquid fingerprint of the Vitex negundo-silver particles is established, the internal quality of the Vitex negundo-silver ...

Transition period core system and transaction routing method and device

The invention provides a transition period core system and a transaction routing method and device, which can be used in the financial field or other fields. The transition period core system is deployed on an old line host platform, the system comprises a transition exchange unit, a host unit and a new line copy unit, and the transition exchange unit is used for being connected with a peripheral system to obtain a peripheral online transaction and routing the peripheral online transaction to the host unit when an account opening behavior of a transaction affiliated card is tried; the host unit is used for processing the peripheral online transaction to obtain a host processing result; the host processing unit is used for returning a host processing result to the peripheral system and synchronizing the peripheral online transaction and the host processing result to the new line copy unit, and the new line copy unit is a core system copy deployed on a new line platform; and the new line ...

Catering data information management system

The invention relates to the technical field of catering data information management, and particularly discloses a catering data information management system, which comprises a food ordering demand analysis module, a food ordering parameter analysis module, a food ordering information analysis module, a food ordering optimization dealer analysis module, a display module, an execution terminal and a database. By analyzing the ordering parameters and the preferred dealers corresponding to the types of the food needing to be ordered in the convenience store, intelligent analysis of the ordering parameters and the preferred dealers corresponding to the types of the food needing to be ordered is realized, the subjectivity and error of ordering by workers in the prior art are avoided, manpower resources and material resources are saved, and the working efficiency is improved. And meanwhile, the working time of workers is shortened, the minimization of the product ordering cost is further ensured ...

Combined type deep treatment process for peculiar smell substances in whole process of casting industry

The invention discloses a combined type deep treatment process for peculiar smell substances in the whole process of the casting industry. The combined type deep treatment process comprises the following steps: S1, cloth bag dust removal; s2, spraying is carried out; s3, performing deodorization; s4, alkali washing: sequentially communicating the bag-type dust collector, the spray tower, the deodorization equipment and the alkali washing tower through pipelines; the deodorization equipment comprises a shell, a filtering device, a photooxidation device and an adsorption device, the filtering device comprises a filter screen; the photooxidation device comprises a lamp holder, an ultraviolet lamp tube and a first screw rod; a cleaning sliding block is transversely arranged between the lamp brackets; the adsorption device comprises an activated carbon cylinder; a motor is arranged at the upper end of the activated carbon cylinder; and a fan is arranged on a right side plate of the shell. The ...

ELISA method for detecting porcine epidemic diarrhea virus antibody SIgA

The invention discloses an ELISA (Enzyme-Linked Immunosorbent Assay) method for detecting a porcine epidemic diarrhea virus antibody SIgA, and belongs to the technical field of biology. The method comprises a step of detecting a porcine epidemic diarrhea virus antibody SIgA in a sample to be detected by taking an S1 protein as a coating antigen, and the amino acid sequence of the S1 protein is a truncated sequence of nineteenth to 7nineteenth sites. The indirect ELISA method for detecting the specific SIgA antibody of the porcine epidemic diarrhea virus in serum, intestinal tissues and milk is preliminarily established by optimizing conditions, and the optimal antigen coating concentration and coating time are respectively determined to be 0.25 mu g/ml and 4 DEG C overnight for 12-16 hours, and other optimal detection conditions are determined. The method for detecting the PEDV specific SIgA in serum, intestinal tissues and milk, established by the research, is simple, convenient and rapid ...

Copper-doped bismuth vanadate-silver iodide activated persulfate photocatalyst as well as preparation method and application thereof

The invention discloses a copper-doped bismuth vanadate-silver iodide activated persulfate photocatalyst and a preparation method and application thereof, and belongs to the technical field of environmental functional materials, the copper-doped bismuth vanadate-silver iodide (Cu < 2 + >/BiVO4-AgI) is formed by transition metal copper-doped bismuth vanadate microspheres and silver iodide loaded on the surfaces of the transition metal copper-doped bismuth vanadate microspheres, the problems of low yield and light corrosion of BiVO4 and AgI light quantum are solved, and directional transfer of photon-generated carriers is realized. According to the method, the persulfate is activated by adopting the Cu < 2 + >/BiVO4-AgI photocatalyst, the reaction process and Cu (II)/Cu (I) circulation are promoted by utilizing the synergistic effect of the S-type Cu < 2 + >/BiVO4-AgI heterojunction and the visible light catalytic activated persulfate, efficient degradation of organic pollutants is realized ...

Video processing method and device, terminal equipment and storage medium

The invention provides a video processing method and device, terminal equipment and a storage medium, relates to the technical field of video processing, and aims to efficiently and properly implant target pictures such as advertisement pictures into a video so as to push information in the target pictures to a user under the condition that the watching experience of the user is not influenced. The video processing method comprises the steps that at least one first video frame is determined from a to-be-processed video, and a first target area in the first video frame is determined, wherein the area edge corresponding to the first target area meets a preset edge condition; for each first video frame, a second video frame is obtained according to a target picture and edge information of the first target area in the first video frame, wherein the second video frame comprises the target picture; and a target video is obtained according to each second video frame.

Static voltage stability limit point physical quantity fluctuation interval calculation method and related device

The invention discloses a static voltage stability limit point physical quantity fluctuation interval calculation method and a related device. The method comprises the following steps: calculating a state variable in a power system by using a numerical calculation method to obtain an initial value of the state variable; calculating a central balance point of a specified derivative point or a static voltage stability limit point of the power system according to the state variable initial value; calculating an affine noise coefficient by using the central balance point in combination with a given sensitivity equation; optimizing the noise quantity by using a system balance point calculation equation, and determining upper and lower bounds of the noise quantity; and determining the fluctuation interval of the specified physical quantity of the static voltage stability limit point according to the upper and lower bounds of the noise quantity and the affine noise coefficient.

Controllable joint cutting equipment for road and bridge construction

The invention relates to the technical field of joint cutting equipment, in particular to controllable joint cutting equipment for road and bridge construction. First supporting plates are symmetrically arranged on a base, lifting assemblies are arranged on the two first supporting plates, driving assemblies are fixedly connected to the lifting assemblies, saw blades are in transmission connection with the driving assemblies, and cleaning assemblies are arranged on the two sides of the saw blades; a water spraying assembly is arranged on the bottom face of the cleaning assembly and communicates with a water storage tank, the cleaning assembly communicates with a dirt storage tank, a positioning assembly is arranged on one side of the base and fixedly connected with the cleaning assembly, bottom plates are fixedly connected to the lower portions of the two first supporting plates, and first through holes are formed in the bottom plates. The size of the first through hole is matched with ...

Salmonella tropicalis CNB-440 recombinant glycosyltransferase and application thereof in novel ginsenoside conversion

The invention discloses a glycosyl transferase, which is used for catalyzing glycosylation of ginsenoside Rh2 to synthesize novel ginsenoside Rh2-12-O-glucosyl ginsenoside. The recombinant glycosyl transferase SGT is obtained by heterologous expression of a glycosyl transferase gene from salmonella tropicalis CNB-440 in escherichia coli. And then, the recombinant glycosyl transferase is used for carrying out glycosylation on ginsenoside Rh2, so that the novel ginsenoside Rh2-12-O-glucosyl ginsenoside is prepared. Meanwhile, the novel ginsenoside has relatively strong anti-cancer activity on an AGS gastric cancer cell line, a Hela cervical cancer cell line, a U87MG glioma cell line and a B16F10 melanoma cell line. The novel ginsenoside is prepared by utilizing a biological conversion method, has the advantages of high conversion rate, high selectivity, mild reaction conditions, few byproducts and the like, shows a good inhibition effect on cancer cells, and can be applied to the field of ...

Disinfecting wet tissue production device and production process thereof

The invention discloses a disinfection wet tissue production device and a production process thereof in the field of hygienic product production, the production device comprises a liquid adding mechanism, the liquid adding mechanism comprises an input roller set and an output roller set which are arranged at the two ends of a rack, and a liquid adding unit and an adsorption unit are arranged between the input roller set and the output roller set; the adsorption unit comprises a rotating bin, an adsorption sponge is arranged in the circumferential direction of the rotating bin, the rotating bin is in transmission connection with the driving roller unit, when the rotating bin rotates, the adsorption sponge is driven to extrude the wet tissue raw materials for adsorption, and the linear speeds of the contact surfaces of the adsorption sponge and the wet tissue raw materials are the same during extrusion. After the disinfectant is added into the wet tissue raw materials, the redundant disinfectant ...

Oil leakage fault online diagnosis method for hydraulic turbine unit speed regulator oil pressing system

The invention relates to the technical field of oil leakage fault detection, and particularly discloses a hydraulic turbine set governor pressure oil system oil leakage fault on-line diagnosis method, which comprises the following steps: in a continuous operation state of a pressure oil system, controlling an oil and gas supplementing device of the pressure oil system to adjust the pressure oil system from a rated pressure to a maximum pressure; stroke change data of valve elements of a plurality of one-way valves of the pressure oil system in the gas pressure change process are obtained; analyzing the travel change data to obtain a spring performance evaluation coefficient; the internal leakage state of the pressure oil system is judged by comprehensively analyzing the abrasion trend evaluation coefficient and the spring performance evaluation coefficient, the internal leakage state of the pressure oil system is comprehensively evaluated through the abrasion trend evaluation coefficient ...

A fire-proof and water-proof insulation building board

... 本实用新型涉及建筑领域，具体的说是一种防火防水保温建筑板材。所述的防火防水保温建筑板材包括防火材料层、蜂窝保温层、隔热层 Ⅰ、隔热层Ⅱ、网格层、防水层、胶合层、拼接槽和拼接轴，其中，所述的板材的最里层为防火材料层，所述防火材料层上设有隔热层Ⅰ，隔热层Ⅰ设有蜂窝保温层，蜂窝保温层上设有隔热层Ⅱ，隔热层Ⅱ上设有网格层，网格层上设有防水层，所述的防火防水保温建筑板材的两端设有胶合层，胶合层上设有与拼接轴匹配的拼接槽。本实用新型提供一种防火防水保温建筑板材，施工方便，在具有良好的保温隔热性能同时具有防火防水功能，解决传统的泡沫保温板施工工艺复杂，耐防火性差和防水差的问题。 ...

Data processing method and device, equipment and storage medium

The embodiment of the invention discloses a data processing method and device, equipment and a storage medium. The method comprises the steps that a service search text is output in a first area; if the service search text contains a service keyword used for triggering associated search, responding to a search operation for the service search text, outputting the service keyword in a second area, and displaying a first text display area used for displaying service auxiliary words in a rolling manner; in response to a trigger operation for the second region, outputting a first associated search text containing the business keyword and the business auxiliary word in the first text display region; and in response to a query operation for the first associated search text, outputting an associated search answer of the first associated search text in the third region. By adopting the embodiment of the invention, the randomness of text recommendation can be realized, and the search volume of the ...

Negative capacitance equalizer

The invention provides a negative capacitance equalizer, and relates to the technical field of circuits. The negative capacitance equalizer comprises a linear equalizer which comprises a differential circuit and a degeneration capacitor, and the degeneration capacitor is connected between a first input end and a second input end of the differential circuit; and the negative capacitance conversion circuit is connected with the linear equalizer, the negative capacitance conversion circuit generates negative capacitance, and the negative capacitance is used for counteracting parasitic capacitance of the linear equalizer so as to increase the bandwidth and gain of the linear equalizer. According to the application, by adding the negative capacitance conversion circuit, the gain and bandwidth problems of a traditional linear equalizer can be improved, the compensation capability is improved, and the equalization requirement under the condition of a relatively high data transmission rate is met ...

Literacy quantity detection method, reading book determination method and related products thereof

The embodiment of the invention provides a literacy quantity detection method, a reading book determination method and related products thereof. The literacy quantity detection method comprises the following steps: randomly extracting test words from a word table to carry out literacy test on a detection object; in the word table, the test words are sorted according to the word frequency; the literacy rate of the test character is negatively correlated with the character frequency of the test character; when a test termination condition is achieved, respectively obtaining a first test word with the lowest word frequency in the test words correctly recognized by the detection object and a second test word with the highest word frequency in the test words wrongly recognized by the detection object; and according to the character learning rate of the test characters between the first test character and the second test character in the character table, calculating the character learning quantity ...

EXTRACT OF GINKGO BILOBA LEAVES AND PREPARATION METHOD THEREFOR

Provided is an extract of Ginkgo biloba leaves as a crude drug, prepared by alcohol extraction of Ginkgo biloba leaves, comprising ≤4.0% of rutin, ≤0.4% of quercetin, 2.6-4.8% of bilobalide, 0.1-0.5% of ginkgolide J, ≤0.5% of residual ethanol, and ≤0.02% of biflavones, the biflavones comprising amentoflavone, bilobetin, and ginkgetin. The extract does not comprise genistin and ginkgolide M. Also provided is a method for preparing the extract of Ginkgo biloba leaves as a crude drug, comprising: extracting minced Ginkgo biloba leaves with an aqueous ethanol solution by heating under reflux, followed by filtration to obtain a filtrate; subjecting the filtrate to concentration followed by precipitation in water to obtain a supernatant, which is then centrifuged to obtain a centrifugate; loading the centrifugate to a macroporous resin column and conducting water washing and solvent elution to obtain a first eluate, then loading a low concentration solvent first eluate to a polyamide column and ...

GNSS deception jamming detection method based on machine learning theory

The invention provides a GNSS deception jamming detection method based on a machine learning theory, relates to the technical field of GNSS satellite signals, is used for GNSS deception jamming detection, and specifically comprises the following steps: obtaining correlation peak data with multipath jamming and deception jamming; generating correlation peaks in different shapes according to multipath interference and deception interference, setting a time window length, and extracting a correlation peak region as network input; establishing a neural network model based on a convolutional neural network and a clustering algorithm, and performing multipath interference and deception interference identification and classification on the data by applying a machine learning method; and S3, training the neural network model obtained in the step S3 by using multipath interference and deception interference correlation peak data, extracting features, and identifying and classifying multipath interference ...

Electronic commerce goods separate storage recognition device

The invention relates to the technical field of e-commerce, in particular to an e-commerce goods separate storage recognition device which comprises a power supply module, a conveying belt, a supporting module, a scanning module, a transmission module, a data processing module, a control module, a manipulator, a plurality of temporary storage modules and a turn-over module. The turn-over module comprises a base, an air cylinder, a frame body, a driving piece, a fixing block, two connecting blocks, two sliding blocks, two connecting rods and two turn-over pieces, the air cylinder is arranged on the base, the output end of the air cylinder is fixedly connected with the frame body, the frame body is slidably connected with the base, the output end of the driving piece is fixedly connected with the fixing block, one ends of the two connecting blocks are hinged to the fixing block, and the other ends of the two connecting blocks are hinged to the driving piece. The other ends of the two connecting ...

Ear canal dosing device

The invention provides an auditory meatus dosing device, and relates to the technical field of medical instruments. The device comprises a gun-shaped main body, an administration cylinder and an administration tip, the gun-shaped main body comprises a handle part, a connecting strip and a head sleeve which are sequentially connected, the head sleeve is provided with an internal thread, the head of the administration cylinder is provided with an external thread matched with the internal thread, the handle part is provided with a push rod and a motor, and the motor is connected with a gear. The bottom of the push rod is provided with a tooth groove meshed with the gear, the handle portion is further provided with a trigger switch linked with the motor, a piston pushed by the push rod is arranged in the dosing cylinder, the end of the dosing cylinder is provided with an end detachably connected with a dosing tip, the dosing tip is provided with an upward dosing tube, and an outlet of the dosing ...

Visual teaching method and device, equipment and storage medium

The embodiment of the invention discloses a visual teaching method and device, equipment and a storage medium, and the method comprises the steps: displaying a teaching material to a first user through a preset interface; the teaching material comprises at least one to-be-selected element; receiving a selection operation for a target element in the at least one to-be-selected element; in response to the selection operation, displaying knowledge point information for the target element in a first area; the knowledge point information comprises first text data matched with user information of the first user, and the first text data comprises target words corresponding to the target elements.

Novel blade wear-resisting plate structure

The utility model relates to a novel blade wear-resisting plate structure which comprises a blade, a novel blade wear-resisting plate is arranged on the blade in a welding mode, an extending portion is arranged at one end of the novel blade wear-resisting plate, and the width of the extending portion is the same as that of the tail portion of the blade. And a welding bead is arranged at the contact position of the extension part and the blade. According to the novel blade wear-resisting plate structure, the novel blade wear-resisting plate extends to the tail of the blade and partially extends out, and a welding bead at the tail of the blade is reserved on the leeside, so that the wear of wind power to a welding part is reduced when the blade rotates at a high speed.

Method for assisting reading and related product

The embodiment of the invention provides a method for assisting reading and a related product. The method comprises the following steps: obtaining a word segmentation result of a text corresponding to an audio of an audio book; and in the audio broadcasting process of the audio reading material, synchronously highlighting and displaying the text by taking a single character or a word as a unit according to the word segmentation result of the text. Through the technical scheme of the invention, a user can intuitively understand and grasp the division, sentence segmentation and the like of the content in the audio reading material, the user does not need to decompose and analyze the related content and the like depending on the reading ability of the user, the actual reading requirement of the user is met, and the user experience is improved. The autonomous reading threshold of the user can be effectively reduced; and the reading experience of the user is improved.

Urban rail transit passenger flow prediction method and system

The invention relates to the technical field of urban traffic data processing, in particular to an urban rail transit passenger flow prediction method and system, and the method comprises the steps: collecting the number of passengers at different time periods, and forming passenger flow data; forming historical passenger flow data by the passenger flow data corresponding to the dates of which the to-be-predicted dates belong to the same week value; obtaining the historical similarity between the to-be-predicted date and the historical passenger flow data; the method comprises the following steps: acquiring historical similarity of adjacent dates of a to-be-predicted date, acquiring similarity continuity according to changes of the to-be-predicted date and the historical similarity corresponding to the adjacent dates, and when the similarity continuity is greater than a preset threshold value, acquiring an error probability of each adjacent date so as to obtain a weight value; and obtaining ...

Data processing method and device, equipment and storage medium

The invention provides a data processing method and device, equipment and a storage medium, and can be applied to the field of big data platforms. The method comprises the following steps: detecting whether the version of a target data dictionary file of a new service system is updated or not, if the update is detected, obtaining the target data dictionary file of the new version of the new service system and a data migration rule file corresponding to the target data dictionary file of the previous version of the new service system, the data migration rule file is used for describing a data migration rule for migrating the data from the original service system to the new service system. And according to the data migration rule file and the version-updated target data dictionary file, determining the content of the version adjustment of the target data dictionary file. And according to the adjusted content, determining to-be-adjusted content in the data migration rule file, marking the ...

BANKNOTE SERIAL NUMBER IDENTIFICATION METHOD

The embodiment of the present invention discloses a banknote serial number identification method for solving the problem in which existing character identification processes cannot distinguish between similar characters. The method comprises: obtaining a serial number image of a banknote (101); performing a cutting process on the serial number image to obtain a plurality of character images (102); scaling all of the character images to a preset uniform size (103); extracting a feature vector of the character image (104); performing character identification on the character image based on the feature vector and a pre-trained classifier model to obtain a preliminary identification result (105); determining whether the preliminary identification result falls within a preset similar character set, and if so, performing a second identification on the character image (108), and if not, outputting the preliminary identification result (107).

Shale gas reservoir uplift evolution process determination method, system, equipment and medium

The invention discloses a shale gas reservoir uplift evolution process determination method, system, equipment and medium, and relates to the field of shale gas reservoir evolution.The shale gas reservoir uplift evolution process determination method comprises the steps that firstly, the fracture cutting relation of shale gas reservoir fracture veins is determined, and then calcite veins are screened out from the fracture veins based on the fracture cutting relation; the method comprises the following steps: performing uranium-lead (U-Pb) dating target preparation operation on a calcite vein body to obtain a target sample after target preparation, then determining the formation age of the calcite vein body based on the target sample, and determining a uniform temperature average value of a gas-liquid two-phase brine inclusion in the calcite vein body, and finally, determining the adjustment period of the uplift evolution stage of the shale gas reservoir based on the formation age of the ...

Equipment antenna for mobile service

The invention relates to the technical field of antenna equipment, and provides an equipment antenna for mobile service, which comprises an antenna shell, and a first antenna assembly and a plurality of second antenna assemblies arranged in the antenna shell, a first cover body accommodating hole and a plurality of second cover body accommodating holes are respectively formed in the side surface and the top surface of the antenna shell; a first antenna of the first antenna assembly is rotationally arranged on the first antenna base; a first base overturning connecting rod is arranged at the side end of the first antenna base; a first base overturning cover body is arranged at the other end of the first base overturning connecting rod and is rotationally arranged in the first cover body accommodating hole; the second antenna assembly and the first antenna assembly have the same structure, and the first antenna and the second antenna have different radiation directions. According to the technical ...

Similar path typhoon determination method and device, equipment and medium

The invention discloses a similar path typhoon determination method and device, equipment and a medium. According to the method, path information of a current typhoon is obtained, and a buffer area of the current typhoon is determined according to the path information of the current typhoon; according to the path information of the current typhoon, the buffer area and the path information of each historical typhoon, determining candidate typhoons having similar conditions with the current typhoon; according to a preset trajectory class cluster termination classification number, the path information of the current typhoon and the path information of each candidate typhoon, performing trajectory clustering on the current typhoon and each candidate typhoon, and determining trajectory similarity of the trajectory class clusters corresponding to the current typhoon and each trajectory class cluster classification number; and according to the similarity of each track, determining a similar path ...

Protective clothing taking-off training device

The invention discloses a protective clothing taking-off training device, and relates to the field of medical training articles. The protective clothing taking-off training device comprises a base, a lifting device and a powder spraying device. The lifting device is mounted on the base; the powder spraying device is connected with the lifting device; the powder spraying device comprises a guide pipe, a powder container, a fan and a humidifier; the number of the guide pipes is two, the guide pipes are horizontally arranged and are arranged in a front-and-back spaced mode, the space between the two guide pipes is a human body passing space, partition plates are arranged in the guide pipes and divide the guide pipes into powder pipes on the outer side and water mist pipes on the inner side, and communicating holes communicating the powder pipes with the water mist pipes are formed in the partition plates. A powder outlet is formed in the inner side wall of the water mist pipe; the powder container ...

Application of secreted polypeptide in preparation of medicine for relieving diabetes mellitus and neuropathy of diabetes mellitus

The invention belongs to the technical field of application of secreted polypeptides, and discloses application of secreted polypeptides in preparation of drugs for relieving diabetes and neuropathy thereof, and the secreted polypeptides are spexin. The secreted polypeptide acts by reducing the electroactivity of the dorsal root ganglion. The secreted polypeptide acts by increasing the distribution of skin nerve endings. The polypeptide spexin can increase cold, heat and mechanical pain thresholds of diabetic mice, reduce action potential release of the mice, and increase distribution of skin nerve endings of the mice. The spexin disclosed by the invention can be used for remarkably improving neuropathy and pain feelings of diabetic mice. The invention provides the polypeptide spexin capable of remarkably relieving diabetic neuralgia, and a new medicine is provided for treating neuropathic pain and treating diabetes and neuropathy thereof.

Photovoltaic flexible support capable of being tensioned and arranged in multiple sections and arrangement method

The invention belongs to the technical field of long-distance continuous overhead arrangement of photovoltaic project assemblies, and particularly relates to a photovoltaic flexible support capable of being tensioned and arranged in multiple sections and a laying method. The device is composed of two terminal supporting mechanisms, a plurality of linear supporting mechanisms, a plurality of tension supporting mechanisms and pre-stressed anchor cables. The plurality of tension support mechanisms are separately arranged between the two terminal support mechanisms; the multiple linear supporting mechanisms are arranged between each terminal supporting mechanism and the corresponding tension supporting mechanism and between the adjacent tension supporting mechanisms. The pre-stressed anchor cable penetrates through the two terminal supporting mechanisms, the multiple linear supporting mechanisms and the multiple tension supporting mechanisms in a linear mode. Through the segmented tensioning ...

Air ship

... 本实用新型公开了一种空气艇，包括船体，船体的船舱中设置有上装支架，动力装置安装在上装支架上，所述船体甲板前倾，呈前低后高状，所述动力装置位于船体后1/3位置，船体入水后甲板自然呈水平状态，所述动力装置的转轴轴心与船底平面平行。所述船体的船底与两侧贴附有超高分子PE板，超高分子PE板与船体采用沉头自攻螺钉和密封胶进行连接固定。本实用新型提高了空气艇的动力性能，增大了船体载重能力，降低了船体在复杂环境下的行进阻力。 ...

Processing method of high-precision optical filter

The invention relates to the field of optical filters, and discloses a processing method of a high-precision optical filter. Comprising the following steps: photoetching and etching a high-resistance silicon wafer to obtain a high-resistance silicon wafer with a grating structure; bonding the silicon wafer with an SOI silicon wafer to obtain a bonded silicon wafer; a silicon supporting layer at the bottom of a high-resistance silicon wafer with a grating structure in a bonded silicon wafer is removed, the grating structure is exposed, a photoetching pattern with a light outlet pattern is formed on the surface of a supporting layer of an SOI silicon wafer in the bonded silicon wafer through photoetching, etching is carried out according to the photoetching pattern, then a silicon oxide buried layer of the SOI silicon wafer is etched, the photoetching pattern is removed, and a light outlet pattern is formed. And the high-precision optical filter is obtained. According to the invention, the ...

Turbine thrust augmentation matching system of supercharged afterburner of small turbojet engine

The invention discloses a turbine thrust augmentation matching system of a supercharging afterburner of a small turbojet engine, which comprises a mixing flow channel and a supercharging ring cavity, the mixing flow channel is communicated with the supercharging ring cavity, and an anti-return unit is arranged between the mixing flow channel and the supercharging ring cavity; and the anti-return unit is used for controlling fluid to directionally flow into the pressurizing ring cavity through the mixing flow channel. Therefore, the front and back pressure drop ratio of the turbine of the supercharged afterburner of the small turbojet engine is ensured, the fuel does not spontaneously ignite in advance, and the stability of the working state of the turbine is ensured.