微阵列试剂盒

High-resistance high-toughness 60-core doubling heating wire and preparation method thereof

The invention relates to a high-resistance high-toughness 60-core doubling heating wire and a preparation method thereof, and belongs to the field of heating wires. The heating wire comprises glass fiber, an insulating alloy wire twisted on the glass fiber and a silicon rubber case packaged on the outer side of the insulating alloy wire, and the insulating alloy wire comprises an alloy heating wire core and a modified PVC protective layer on the surface of the alloy heating wire core. The modified PVC protective layer comprises 100 parts of PVC resin, 4.5-5.5 parts of a plasticizer, 3-6 parts of mica powder, 1-2 parts of aluminum nitride powder, 0.5-1 part of asbestos powder, 2-3 parts of a silane coupling agent, 0.2-0.3 part of an accelerant and 6-8 parts of xylene; branched formate is synthesized at the molecular end part of the plasticizer and can be embedded with PVC to play a role in stabilizing and toughening, the middle part of a molecule contains a reticular nitrogen-containing ...

Electro-reduction-electro-oxidation composite electrode for in-situ hydrogen measurement and preparation method and application of electro-reduction-electro-oxidation composite electrode

The invention belongs to the technical field of water electrolysis hydrogen production detection materials, and relates to an electroreduction-electrooxidation composite electrode for in-situ hydrogen measurement as well as a preparation method and application of the electroreduction-electrooxidation composite electrode. The invention discloses an electroreduction-electrooxidation composite electrode for in-situ hydrogen measurement, the electroreduction-electrooxidation composite electrode for in-situ hydrogen measurement is composed of a Pt/FTO electroreduction electrode, an insulating glass spacer and a Pt/FTO electrooxidation electrode, and coatings on the surfaces of the Pt/FTO electroreduction electrode and the Pt/FTO electrooxidation electrode comprise FTO layers with dispersed and embedded platinum particles; and the proportion of Pt in the FTO layer is 0.5 to 1.5 percent. The invention further discloses a preparation method and application of the electroreduction-electrooxidation ...

Back protection device for butt plate one-side welding and two-side forming backing welding

The invention discloses a back protection device for one-side welding and double-side forming backing welding of butt joint plates, and relates to the technical field of basic process welding, the back protection device comprises a base, a first notch is formed in the top surface in the length direction, the first notch is communicated with the two ends of the base, and a vent groove communicated with protective gas is formed in the bottom of the first notch; the embedded base plate is detachably arranged in the first notch, a plurality of vent holes are formed in the embedded base plate in the vertical direction, and the vent holes can guide the protective gas in the vent groove to the position above the embedded base plate; the fastening structure is arranged above the base, the fastening structure and the base can clamp and fix the welding plate, and a welding operation area corresponding to the position of the air hole is arranged on the fastening structure; the back protection device ...

Tea tree CsU6 gene promoter and cloning and application thereof

The invention discloses a tea tree CsU6 gene promoter as well as cloning and application thereof. The endogenous CsU6 gene promoter of the tea tree is successfully cloned for the first time, the transcriptional activity detection vector of the CsU6 gene promoter of the tea tree is successfully constructed, the transcriptional activities of the eight CsU6 promoters are compared through instantaneous transformation of tobacco leaves, GUS dyeing and GUS enzyme activity determination, the CsU6i and CsU6j promoters with the strongest transcriptional activity are selected for construction of the gene editing vector of the tea tree, and the CsU6i and CsU6j promoters with the strongest transcriptional activity are selected for construction of the gene editing vector of the tea tree. The feasibility of the two promoters applied to a tea tree CRISPR/Cas9 gene editing system is verified in the tea tree protoplast, and CRISPR/Cas9 mediated tea tree genome targeted editing is realized. Therefore, cloning ...

Corncob height measuring method, device and system and storage medium

The invention provides a corn ear height measuring method, device and system and a storage medium. The method comprises the following steps: acquiring three-dimensional point cloud information of corn vegetation in a target area; performing height layering and voxelization processing on the three-dimensional point cloud information, and determining voxels containing the point cloud information of each height layer and all voxels of each height layer; based on the number of the voxels containing the point cloud information of each height layer and the number of all the voxels of each height layer, determining the leaf area density of each height layer; and based on the height of the height layer corresponding to the maximum value in the leaf area density of each layer, determining the corn ear height of the target area. According to the method, the corncob height of the target area can be effectively determined, the efficiency of measuring the corncob height can be greatly improved, and ...

MOBILE ROBOT POSITIONING SYSTEM AND POSITIONING METHOD THEREOF

The present invention discloses a mobile robot positioning system and the positioning method thereof. The positioning system includes a base station, a dead reckoning positioning system, an ultrasonic laser positioning system and a data fusion unit. The dead reckoning positioning system consists of an angular velocity sensor for acquiring the angle information of the mobile robot, and a displacement sensor for acquiring the walking distance information of the mobile robot. The ultrasonic laser positioning system consists of ultrasonic laser emitters mounted on the base station, and ultrasonic laser receivers and an information processing system installed on the mobile robot. The position coordinates of the mobile robot in the ultrasonic laser positioning system are acquired through information exchange between the ultrasonic laser emitters and the ultrasonic laser receivers. The data fusion unit is used for the fusion of the angle information and the walking distance information in the ...

PROBIOTIC MICROCAPSULE FOR MAINTAINING STRAIN ACTIVITY, AND PREPARATION METHOD THEREOF

Provided are a probiotic microcapsule for maintaining strain activity and preparation method thereof; the probiotic microcapsule uses a composite wall structure constituted by a first wall material and a second wall material; the first wall material is a protein plant polysaccharide composite gel made of casein, malt extract, and xylooligosaccharide which can prevent damage to a core material caused by light, heat, oxygen, metal ions, and the like, and positively promote the stability of an embedded material; the second wall material is a plant polysaccharide compound made of Tremella fuciformis polysaccharide, Bletilla striata polysaccharide, Atractylodes macrocephala polysaccharide, guar gum, and pectin which can reduce the impact of vacuum freeze-drying processing technology on the biological activity of core probiotic bacteria; at the same time, when the outside of the first wall material is covered with the second wall material, the first wall material, which contains a large amount ...

Method for inoculating hypsizygus marmoreus

The invention provides a hypsizygus marmoreus inoculation method which comprises the steps that inoculation fungus bags are placed in a feeding box in a stacking mode, the inoculation fungus bags enter limiting grooves under the action of gravity, follow-up inoculation fungus bags can extrude the inoculation fungus bags just entering the limiting grooves, the limiting grooves with the inoculation fungus bags are rotated to the topmost portion through a driving motor, and then the inoculation fungus bags enter the limiting grooves; the inoculator is driven by a hydraulic cylinder to advance, a needle head penetrates through a through hole in a positioning plate to be inserted into an inoculation fungus bag, when the inoculator advances, the hydraulic cylinder can drive a driving plate to move, the driving plate drives a material pushing piston to move through an elastic rod, strain liquid in a strain box is sucked into an inoculation needle tube, and the driving plate is driven by the hydraulic ...

Offshore early-stage well-seismic-dynamic combined shallow water delta reservoir configuration characterization method

The invention provides an offshore early-stage well-seismic-dynamic combined shallow water delta reservoir configuration characterization method. The method comprises the following steps: collecting and analyzing geological data, seismic data and production dynamic data of an oil and gas reservoir to be characterized; determining a sedimentary configuration level division scheme of the shallow water delta; the method comprises the following steps: determining a characterizable reservoir configuration characterization level of a shallow water delta in a sedimentary configuration level division scheme under the condition of few wells, and obtaining a characterizable reservoir configuration unit; determining rock-electricity-seismic response characteristics of a characterizable reservoir configuration unit at the front edge of the shallow water delta; and dissecting the characterizable reservoir configuration unit at the front edge of the shallow water delta under the condition of few wells ...

Building energy consumption prediction method based on feature selection and SSA-BiLSTM

The invention discloses a building energy consumption prediction method based on feature selection and SSA-BiLSTM, and the method comprises the following steps: 1, carrying out the actual measurement of building energy consumption impact factor data for feature selection, and collecting energy consumption data; step 2, carrying out entropy weighted k-means clustering analysis on the influence factors of the energy consumption data by utilizing MATLAB (Matrix Laboratory) software; 3, according to an influence factor clustering result, carrying out feature selection by adopting a random forest, and eliminating redundant influence factors; and step 4, constructing a BiLSTM neural network prediction model optimized by the sparrow search algorithm, taking the effective building energy consumption influence factor as an input parameter of the BiLSTM neural network, taking the building energy consumption as an output, performing parameter optimization by adopting the sparrow search algorithm, ...

Mushroom cultivation method based on microbial technology

The invention belongs to the technical field of microbial culture, and particularly relates to a mushroom cultivation method based on a microbial technology. The method comprises the following steps: (1) preparing a substrate containing algae microorganisms, inoculating shiitake mushrooms on the substrate, and sealing to form shiitake mushroom bags after the inoculation is completed; (2) putting the mushroom fungus bag in a microclimate condition formed by weak blue light and medium environment humidity, and culturing until the matrix becomes white; (3) blue light is converted into high-light-intensity yellow light, the environment humidity is increased to a high-humidity condition to form a microclimate condition, and cultivation is continued until sporocarp is formed; and 4) reducing the humidity of the microclimate condition in the step 3), continuing to cultivate and harvest the mushroom after maturity. The mushroom-algae symbiotic system is constructed through algae microorganisms, ...

Inspection device for inspection and quarantine

... 公开了一种检验检疫用检查装置。该装置包括具有物质分辨能力的双能CT装置、DR装置、具有增强显示检验检疫关注对象(动植物、肉类等)并自动标注的物质识别系统和突出显示检验检疫查验嫌疑物并自动报警功能的图像处理系统。与现有技术相比，本实用新型能够突出检验检疫查验关注对象，能够提高口岸检验检疫查验准确率和效率。 ...

Application of ADAM17 in preparation of medicine for treating effector CD8 + T cell differentiation related diseases

The invention belongs to the technical field of antitumor drug research, and particularly discloses application of ADAM17 in preparation of drugs for treating effector CD8 + T cell differentiation related diseases. Experiments prove that in a mouse tumor model, the CD8 + T cell adoptively and specifically modified with ADAM17 can significantly inhibit growth of tumors compared with a wild type CD8 + T cell, and the proportion of depleted CD8 + T cells in the tumors is reduced. Meanwhile, ADAM17 is modified in the CD8 + T cell, so that the capability of the CD8 + T cell for removing bacteria can be effectively improved, and the anti-infection capability is enhanced.

Electrical fire hazard detection practical training system and practical training method

The invention relates to an electrical fire hazard detection practical training system and a practical training method, the system comprises a teacher end and a student end, the teacher end comprises a host, the student end comprises at least one practical training platform, the practical training platform is connected with the host, the practical training platform comprises a practical training device, a display and an input device, and the practical training device is respectively connected with the display and the input device. Various fire hazard detection items are integrated on the practical training platform, so that the centralization of electrical fire hazard detection teaching sites, the integrity of teaching contents and the operability of the teaching process are realized, and the defects that the teaching sites are dispersed, the electrical fire hazard is difficult to find, the electrical fire hazard detection and safety problems are difficult to guarantee, and the teaching ...

Production process of white spirit by solid-state method

The invention discloses a production process of white spirit by a solid-state method, and belongs to the technical field of white spirit brewing. In order to shorten the fermentation period, improve the liquor yield and realize the high-quality production of the liquor, the invention provides the production process of the liquor by the solid-state method, the sorghum flour is used as a raw material, the grain wetting process is used for replacing the whole grain sorghum soaking process, the brewing water is saved, the sewage discharge is reduced, and the green and low-carbon efficiency of the brewing production is improved; a steaming and secondary cleaning process is adopted, the fermentation period is shortened through a stacking cultivation process in first-row fermentation, rapid wine production and direct cellar fermentation without stacking in the second row are realized, aroma-producing yeast and yellow water are added for compound fermentation after the main fermentation period ...

METHOD, DEVICE, AND SYSTEM THAT ENABLE D2D DATA TRANSMISSIONS IN CELLULAR NETWORK

A method, device, and system that enable device-to-device (D2D) data transmissions in a cellular network. The major content comprises: a resources allocation method, specifically: a base station receives a data transmission request from a first user equipment (UE); a D2D connection has already been established between the first UE and a second UE; allocating wireless resources for data transmissions between the first UE and the second UE according to the received data transmission request, and transmitting the wireless resources allocation result to the first UE and/or the second UE; a data transmission method, specifically: the first UE transmits a data transmission request to the base station; the first UE and the second UE receive the wireless resources allocation result from the base station; the first UE uses the wireless resources allocated by the base station to transmit data to the second UE, and the second UE uses the wireless resources allocated by the base station to receive ...

Method for repairing electrolytic manganese residue polluted soil by inoculating white-rot fungi

The invention discloses a method for repairing electrolytic manganese residue polluted soil by inoculating white-rot fungi. The method comprises the following steps: mixing biomass and electrolytic manganese residue polluted soil to obtain a compost raw material; inoculating white-rot fungi into the compost raw material to obtain a compost body; and composting fermentation is conducted on the compost body to obtain compost matured clinker, and remediation of the electrolytic manganese residue contaminated soil is completed. By inoculating the white-rot fungi, the leaching amount of the heavy metal manganese is effectively reduced, the mobility and bioavailability of the heavy metal manganese are effectively reduced, the microbial community structure is effectively changed, the number and diversity of microorganisms are increased, the seed germination index is improved, and remediation of the contaminated site soil is achieved. The method has the advantages of quickly starting compost repair ...

METHOD FOR EFFICIENTLY SECRETING AND EXPRESSING FOREIGN PROTEIN USING BACILLUS

Disclosed is a method for efficiently secreting and expressing a foreign protein using Bacillus, in particular comprising the steps of: (1) constructing a Bacillus strain lacking eight proteases: knocking out eight protease genes, i.e. aprE, bpr, epr, mpr, nprB, nprE, wprA and vpr, of a Bacillus expression strain to avoid degradation of a protein of interest by proteases secreted by a Bacillus subtilis expression strain after the protein of interest is secreted into a fermentation broth; (2) cloning the gene for the protein of interest, constructing an expression vector according to the requirements for an expression system, and transferring the expression vector into the Bacillus strain lacking the eight proteases to obtain an expression strain expressing the protein of interest; and (3) inducing and culturing the expression strain in step (2) to obtain the secreted protein of interest. When any protein of interest is expressed in cells in a large amount, it can be secreted out of cells ...

EXAMINATION SYSTEM FOR INSPECTION AND QUARANTINE AND METHOD THEREOF

The present invention applies the CT technology to the field of quarantine supervision and discloses an examination system for inspection and quarantine and method thereof. The method comprises: a CT scanner performs CT scanning on an object under inspection (17) to obtain projection data; a computing unit (15) performs reconstruction on the basis of the projection data to obtain image data reflecting internal features of the object under inspection (17), and determines the parts of organic substances or contraband for inspection and quarantine in the object under inspection (17); a display unit (16) enhances or highlights the displaying of the determined parts of organic substances or contraband for inspection and quarantine with respect to the other parts. The present invention overcomes the problem of overlapping image objects in single-view-angle or multi-view-angle X-ray machines, and also solves the problem in ordinary CT images of organic substances including contraband for inspection ...

OIL-IMMERSED DISTRIBUTION TRANSFORMER

Proposed by the present application is an oil-immersed distribution transformer, comprising an oil storage tank. The oil storage tank is a box body that has a top surface, a bottom surface, and side surfaces. The oil storage tank comprises an oil storage cavity used for storing oil. The oil storage tank comprises a plurality of corrugated sheets provided on the side surfaces of the oil storage tank. The corrugated sheets have an inner cavity, the inner cavity communicates with the oil storage cavity, and an elastic element is provided between adjacent corrugated sheets. The oil-immersed distribution transformer further comprises a pressure release element. The pressure release element communicates with the oil storage cavity, and the communication between the oil storage cavity and the external environment may be controlled to release the internal pressure of the oil storage tank. The caliber of the pressure release element is 120 to 125 millimeters, and the opening pressure value is 69 ...

Consumption early warning method, system and device and storage medium

The invention discloses a consumption early warning method, system and device and a storage medium. The method can be applied to the field of artificial intelligence or finance. The method comprises the following steps: in response to a consumption request of a first account of a user, obtaining actual consumption information of the first account of the user in a target time period; the actual consumption information comprises consumption information of the consumption request; using the consumption prediction model to generate a consumption portrait of the user in the target time period; the consumption prediction model is constructed based on historical consumption information of multiple accounts of the user in a first preset time period; and generating consumption early warning information according to the actual consumption information, the consumption portrait and the early warning condition. According to the method, the consumption portraits of the users are accurately predicted ...

METHOD FOR IDENTIFYING SHEET AND BLOCK-SHAPED CONTRABAND, EXPLOSIVE OR DRUG

A method for identifying a sheet or block-shaped contraband, an explosive or a drug. The method comprises the following steps: (1) reading data of a fracture of an article to be checked; (2) preprocessing the data of the fracture; (3) slicing the preprocessed data of the fracture into a plurality of areas with similar physical properties; (4) analyzing whether each sliced area is a sheet area; (5) determining whether the sheet area detected in the current fracture can be merged with a sheet area detected in a previous fracture to form the sheet object; (6) determining whether each detected sheet object is ended or complete; and (7) repeating steps (1) to (6), and by using the one-by-one based fracture analysis method, processing data of each fracture until data of all fractures is processed.

Vehicle control method and system based on traffic signs and traffic sign recognition platform

The embodiment of the invention provides a vehicle control method and system based on traffic signs and a traffic sign recognition platform, which can be used in the technical field of artificial intelligence, and the method comprises the steps: carrying out the traffic sign recognition of a current driving road image through a pre-trained traffic sign recognition model, and obtaining traffic sign information, the traffic sign recognition model is obtained by training an improved target detection algorithm, and the last layer of a backbone network in the improved target detection algorithm is provided with an attention module; the traffic sign information is sent to a vehicle decision-making system, so that the vehicle decision-making system controls vehicle driving according to the traffic sign information, a lightweight traffic sign recognition model is provided by improving a target detection algorithm, the application capability of the model is effectively improved, the detection and ...

Nucleic acid sequence combination for RT-LAMP-CRISPR isothermal detection of brassica yellow virus, kit and application

The invention provides a nucleotide sequence combination and a kit for RT-LAMP-CRISPR isothermal detection of a brassica yellow virus and application of the nucleotide sequence combination and the kit. The nucleotide sequence combination comprises a primer group for LAMP detection, crRNA and an ssDNA-FQ probe; the RT-LAMP-CRISPR isothermal detection method for the brassica yellow virus comprises the following steps: extracting RNA (Ribonucleic Acid) of a sample to be detected, carrying out RT-LAMP isothermal amplification reaction by using the primer group, carrying out CRISPR isothermal detection on an amplification product by using crRNA and an ssDNA-FQ probe, and finally obtaining a detection result by reading fluorescence. The rapid detection kit based on the RT-LAMP-CRISPR system and the corresponding detection method are established according to the genotype characteristics of the brassica yellows virus, the method is high in sensitivity, good in specificity, low in detection limit ...

MULTIMEDIA CONTENT SENDING, GENERATING, TRANSMITTING AND PLAYING METHOD, AND CORRESPONDING DEVICE

A multimedia content sending, generating, transmitting and playing method, and a corresponding device. The multimedia content sending method comprises: receiving first multimedia content uploaded by a first client; combining the first multimedia content and pre-determined multimedia content to generate second multimedia content; determining a playing range of the second multimedia content; and sending the second multimedia content to a second client within the playing range for playing. The second client within the playing range is enabled to receive the multimedia content uploaded by the first client.

Anti-infection repairing agent as well as preparation method and application thereof

The invention belongs to the technical field of biological medicines, and particularly relates to an anti-infection repairing agent as well as a preparation method and application thereof. The anti-infection repairing agent comprises small intestine submucosa gel, basic fibroblast growth factor sustained release microspheres and graphene oxide-polyethyleneimine-antibacterial antisense nucleic acid, wherein the basic fibroblast growth factor sustained release microspheres and the graphene oxide-polyethyleneimine-antibacterial antisense nucleic acid are loaded on the small intestine submucosa gel. According to the preparation method, small intestine submucosa gel is taken as a matrix, gel is formed by utilizing the alkaline characteristic of a graphene oxide-polyethyleneimine solution, antibacterial antisense nucleic acid and alkaline fibroblast growth factor sustained release microspheres are loaded at the same time, bacteria are released and killed by the antibacterial antisense nucleic ...

Node deployment method and device, equipment and medium

The invention discloses a node deployment method and device, equipment and a medium, and relates to the field of Internet of Things or finance. The method comprises the following steps: acquiring sink nodes and redundant nodes in a network model; and replacing the sink node with the redundant node according to the residual energy of the sink node and the Euclidean distance between the sink node and the redundant node to become the latest sink node. Therefore, the redundant nodes can be used for replacing aggregation nodes with relatively high energy consumption, so that the energy consumption of the aggregation nodes is balanced, the problem of energy holes is effectively relieved, and the life cycle of the wireless sensor network is prolonged.

Saline-alkali tolerant rice seedling substrate and preparation method thereof

The invention provides a saline-alkaline tolerant rice seedling substrate and a preparation method thereof, and relates to the field of rice cultivation. The saline-alkaline tolerant rice seedling raising substrate is prepared from the following components in parts: 13 to 15 parts of straw, 15 to 18 parts of farmyard manure, 8 to 10 parts of lime, 5 to 8 parts of fertilizer, 3 to 5 parts of phosphate, 5 to 7 parts of ammonium sulfate, 5 to 10 parts of rice husk carbon and 5 to 12 parts of foliar fertilizer. Phosphate, ammonium sulfate and rice husk charcoal are adopted for good improvement according to the saline-alkaline property of soil, transplanted rice seedlings can rapidly adapt to the growth environment, meanwhile, the soil environment is improved, the morbidity of the rice seedlings can be greatly reduced, meanwhile, lime powder is adopted, the situation of pest eggs in the planting environment can be improved, and the yield of the rice seedlings is increased. Meanwhile, the lime ...

Method for training radiation image recognition model on line, radiation image recognition method and radiation image recognition device

The invention provides an online training method and device of a radiation image recognition model and a radiation image recognition method and device. Preset data is pre-stored in the radiation inspection system, and the preset data comprises a first radiation image. The training method comprises the following steps: acquiring a second radiation image on a radiation inspection site; the second radiation image is marked online to form on-site collection data with second marking information, the second marking information is incomplete marking information of the second radiation image, and the second marking information is used for indicating part of interested objects in the second radiation image; synthesizing the preset data and the field acquisition data on line to form a training data set; and using the training data set to train the radiation image recognition model online.

A novel art easel

... 本实用新型公开了一种新型美术画架，包括三角支腿、盒体、颜料盒以及画板，所述三角支腿上设有旋转盘，所述旋转盘上设有固定架，所述固定架上设有盒体，所述盒体可在所述固定架上进行转动；所述盒体内置有支撑臂,所述画板的一端通过铰接轴转动安装于所述支撑臂上,所述画板的另一端与所述支撑臂之间设有一液压缸,所述液压缸的缸体铰接于所述支撑臂上。本实用新型由于将颜料盒和画板可收缩的设置在盒体上，通过滑槽和连杆机构，使得颜料盒和画板的使用和收纳变得方便、简单，并且收纳时使得整体体积大大减小而且由于设置了脚踏板和脚踏控制阀，绘画者可以用脚控制液压缸活塞杆的伸缩，从而调节画板的角度。 ...

A liquid crystal display device; and VA negative display liquid crystal display screen

The invention provides a liquid crystal display device and a VA negative display liquid crystal display screen. The liquid crystal display device comprises a polaroid assembly and a liquid crystal assembly. The polaroid assembly comprises a first polaroid and a second polaroid; the first polaroid and the second polaroid are arranged in parallel; the liquid crystal assembly comprises a first conductive substrate, a second conductive substrate, a first alignment film, a second alignment film and a liquid crystal layer, the liquid crystal layer is located between the first alignment film and the second alignment film, and the liquid crystal layer abuts against the first alignment film and the second alignment film. Therefore, the distance between the first alignment film and the second alignment film is increased from the first distance to the second distance. The distance between the first alignment film and the second alignment film is increased to be the second distance, so that the distance ...

Adjustable ultrasonic probe

The invention discloses an adjustable ultrasonic probe, and belongs to the technical field of medical equipment, the adjustable ultrasonic probe comprises a probe body, a connecting sleeve and a heating device, the connecting sleeve is adjustably arranged on the outer side of the probe body, the heating device is obliquely distributed on the side of the connecting sleeve, and the heating device is filled with a coupling agent; a pushing assembly for extruding a coupling agent, a heating sheet group for heating the coupling agent and a silica gel one-way valve at the bottom are arranged in the heating device, and an auxiliary plate for smearing and scraping the coupling agent is arranged below the probe body in a swinging manner. Automatic heating and stable secretion of the coupling agent are controlled through the heating device, the detection efficiency and the detection precision are improved, and meanwhile the comfort level of a subject is improved.

Method for detecting contents of lead and scandium in cast iron

The invention provides a method for detecting the content of lead and scandium in cast iron, which comprises the following steps: mixing a cast iron sample to be detected, mixed acid and water to obtain a solution to be detected; and carrying out inductively coupled plasma emission spectrum measurement on the solution to be measured. The mixed acid comprises nitric acid and sulfuric acid. According to the detection method, the content of lead and scandium elements in cast iron can be measured at the same time, the operation steps are few, the accuracy and precision are high, and the lead and scandium detection limits are as low as 0.0003% and 0.00014%; the adopted cast iron sample dissolving method is simple, convenient and complete, the reagent dosage is small, and determination of the content of other elements in the cast iron is not affected.

Stress-resistant seedling raising method for cold region saline-alkali soil rice

The invention provides a stress-resistant seedling raising method for cold region saline-alkali soil rice, and relates to the field of rice planting. The stress-resistant seedling raising method for the cold region saline-alkali soil rice comprises the following steps: S1, treating grains; s2, seedling raising treatment; s3, seedling transplanting treatment; s4, seedling topdressing; s5, spraying fertilizer to promote growth; s6, seedbed treatment in the planting area; s7, field steeping and salt leaching; s8, discharging the water in the above step through a drainage system, and then additionally applying an organic fertilizer in the planting area in which the water is discharged, so that organic substances in the soil are increased, and the internal structure of the soil is improved; s9, irrigation treatment is conducted in the planting area, and the internal water amount reaches 8 cm or above. Seed treatment, seedling culture treatment and seedbed treatment are combined, so that stress ...

Pressure sore prevention device for nursing of old people

The invention discloses a pressure sore prevention device for old-age nursing, relates to the field of pressure sore prevention nursing, and solves the problem that an existing pressure sore prevention device is prone to causing vibration deviation, the pressure sore prevention device comprises one or more mounting plates, a box body is fixedly mounted at the bottom of each mounting plate, a motor is mounted on the outer side of each box body, and the motor is connected with the mounting plates. The output end of the motor extends into the box body, two symmetrically distributed exhaust plates are mounted on the surface of the mounting plate, and a plurality of through holes are formed in the surfaces of the exhaust plates, the mattress on the mounting plate is pushed in a wave mode through the massage mechanism, and then the body of an old person lying on the mattress is massaged; the situation that the old lie on the bed for a long time and blood is not circulated is prevented, air is ...

Automatic ball feeding device of ball mill

The utility model discloses an automatic ball feeding device of a ball mill, which comprises a platform, hydraulic cylinders arranged oppositely are fixedly mounted on two sides of the top of the platform, a ball supplementing bin is mounted at the top ends of the hydraulic cylinders, a feeding port is formed above the left end of the ball supplementing bin, and a ball storage box is fixedly mounted at the top end of the feeding port. A ball inlet communicated with the ball storage box is fixedly installed on the left side of the top of the ball storage box, a vertically-arranged fixing plate is fixedly installed in the ball storage box, the vertically-arranged fixing plate is fixedly installed in the ball storage box, a ball leaking opening is formed in the fixing plate, steel balls can be conveniently leaked out through the ball leaking opening, and the ball leakage rate is increased. A baffle is hinged to the bottom end of the ball leaking opening, the baffle can be conveniently driven ...

Indoor visible light communication channel equalization method based on improved K-means

The invention provides an indoor visible light communication channel equalization method based on improved K-means, and the method comprises the steps: 1, enabling a photoelectric detector to receive an optical signal transmitted through an optical wireless channel, and converting the optical signal into an electric signal; 2, sequentially performing analog-to-digital conversion (A/D), serial-to-parallel conversion (S/P), CP deletion and Fourier transform (FFT) on the electric signal; 3, mapping the data subjected to FFT to a three-dimensional space by using a BP neural network; step 4, clustering is carried out on the mapped data by using an IC-Kmeans algorithm; and 5, demodulating and recovering the original binary sequence. According to the invention, an IC-Kmeans and NNIC-Kmeans balancing technology is provided; an auxiliary training sequence is introduced into the IC-Kmeans, so that the K-means equalization complexity is reduced; according to the method, the NNIC-Kmeans is introduced ...

Method and device for detecting seed vigor

The invention relates to the technical field of seed vigor detection, and discloses a seed vigor detection method and a device thereof, and the method comprises the following steps: S1, selecting 100 seeds needing to be measured, and respectively putting into a detection device; s2, a culture solution is injected into the detection device, when the culture solution covers the seeds, injection is stopped, and the culture solution is replaced every 2-3 days; s3, placing the detection device in an artificial intelligence climate culture room suitable for the seeds to be detected for constant-temperature culture, and setting a segmented mode of 12h illumination and 12h no illumination; s4, the seeds are subjected to conventional germination culture for 20 days, in the using process, after multiple seeds germinate within the same time, the seeds can be divided into first-class products, second-class products, third-class products and defective products, then the proportions occupied by all the ...

Intelligent linkage device and linkage method for inspection equipment

The invention provides an intelligent linkage device and linkage method for inspection equipment, and the device comprises a panel, and an equipment connection drive module, an equipment management module, a data management module, an intelligent diagnosis analysis module, an interconnection communication management module and a crowd intelligence decision module which are disposed on the panel. The method comprises the steps that the intelligent linkage devices are installed on inspection equipment, sensing data of the inspection equipment and other inspection equipment under the same network are obtained, and whether the inspection equipment needs to work or execute work is judged according to the obtained sensing data. Real-time interconnection between devices is realized, a decentralized internet of things network is established, the problems of poor equipment interconnection stability and untimely response caused by the need of relay in a traditional central control system mode are ...

Bone repair material and preparation method thereof

The invention belongs to the field of biomedical materials, and provides a bone repair material and a preparation method thereof. The surfaces of pores of the bovine cancellous bone inorganic salt particles are loaded with poly (trimethylene carbonate) coatings; pores of the bovine cancellous bone inorganic salt particles are filled with a mixture of sodium carboxymethyl starch and gelatin in a sponge state. The problems that the xenogeneic bone material is poor in strength, fragile and free of hemostasis and bone activity induction are solved, and the xenogeneic bone material can be filled in the bone defect position of the oral cavity and has the effects of supporting tooth extraction fossa, absorbing blood, stabilizing blood clots and promoting osteogenesis.

Biodegradable anionic and nonionic mixed aluminum hot rolling liquid and preparation method thereof

The invention discloses a biodegradable anionic and nonionic mixed aluminum hot rolling liquid, which comprises the following components in percentage by weight: 30-70% of dioctyl terephthalate, 10-30% of dioctyl phthalate, 10-30% of dioctyl phthalate, 10-30% of dioctyl phthalate and the balance of water. 20% to 60% of neopentyl glycol polyol ester; 1-5% of phosphate ester; 1-3% of oleic acid; 0.5-2% of organic amine; 0.2% to 1.5% of methyl benzotriazole; 1%-5% of mahogany petroleum sulfonate; 1%-5% of vegetable oleic acid; 4%-8% of ethoxylated fatty amine; 2%-5% of polyoxyethylene oleate; and 2%-5% of an anionic surfactant. The invention further discloses a preparation method of the biodegradable anionic and nonionic mixed aluminum hot rolling liquid. Compared with the prior art, DOTP in any proportion is used in the rolling liquid to replace mineral oil which is not easy to degrade, the performance of the rolling liquid after replacement is kept unchanged, the aluminum hot rolling liquid ...

Targeted NTRK fusion gene compound and preparation method and application thereof

The invention relates to the technical field of tumor phenomenon diagnosis and treatment, in particular to a compound of a targeted NTRK fusion gene and a preparation method and application of the compound, the compound is a conjugate of lalotinib, a chelating agent DOTA and radioactive metal nuclide, and the compound can be specifically taken by tumor cells and can be used for treating tumor cells. The NTRK fusion gene positive tumor is developed and screened by using the marked radioactive metal nuclide 68Ga, and then is treated by using the marked radioactive metal nuclide 177Lu, so that the tumor diagnosis and treatment can be combined into a whole, the treatment effect can be evaluated, and meanwhile, the number of radiopharmaceutical injection times is reduced, so that the radiation dose of a patient is reduced to a certain extent; according to the compound, tumor diagnosis and treatment can be combined into a whole, the treatment effect can be evaluated, meanwhile, the number of ...

Data acquisition method and device, equipment and medium

The invention discloses a data acquisition method and device, equipment and a medium, and relates to the field of big data or finance. The method comprises the following steps: firstly, acquiring mobile node data; secondly, based on a reinforcement learning algorithm, generating a target movement track according to the mobile node data; and finally, executing data acquisition according to the target moving track. Therefore, the trajectory planning algorithm with relatively low complexity is designed, and the optimal data acquisition path is obtained through the reinforcement learning algorithm, so that the data acquisition time is shortened, the data acquisition energy consumption is reduced, and the data acquisition efficiency is improved.

Underground copper-clad steel anti-corrosion device

The invention discloses a copper-clad steel underground anti-corrosion device, and relates to the technical field of copper-clad steel, the device comprises an upper protective shell and a lower protective shell, the outer surface of the upper protective shell is fixedly connected with two symmetrical upper fixing plates, and the outer surface of the lower protective shell is fixedly connected with two symmetrical lower fixing plates; a plurality of fixing mechanisms are arranged above each upper fixing plate, and the upper protective shell, the upper fixing plates, the lower fixing plates and the lower protective shell are matched with one another, so that a good anti-corrosion function can be achieved for the copper-clad steel, corrosion of the copper-clad steel is effectively avoided, and the service life of the copper-clad steel is prolonged; according to the copper-clad steel protection device, the copper-clad steel can be prevented from being corroded, so that accidents caused by ...

Electric arc additive path planning method without lap joint in swing forming layer of executing mechanism

The invention provides an electric arc additive path planning method without lap joint in a swing forming layer of an executing mechanism, which comprises the following steps of: segmenting a traditional magnesium alloy cold metal transition swing filling path again, correcting path planning modes and swing parameters of an arc starting section and an arc quenching section, and forming in a composite swing filling form; the problems of forming defects and forming size shrinkage of an arc starting section and an arc quenching section caused by a large magnesium alloy splashing rate under a complex path due to traditional cold metal transition swing path planning are solved, and the adaptability of a cold metal transition execution mechanism swing forming path planning mode to magnesium alloy complex structure path planning is improved. And the forming quality and stability are improved.

HPLC (high performance liquid chromatography) detection method for stiff silkworms

The invention discloses an HPLC (High Performance Liquid Chromatography) detection method for stiff silkworms. The method comprises the following steps: 1) preparing a reference substance solution; 2) preparing a test solution; and 3) respectively sucking the reference substance solution and the test solution and injecting into a high performance liquid chromatograph. The method for determining the content of the beauvericin in the stiff silkworm is established by a specific sample treatment method and chromatographic conditions, a reliable method is provided for better controlling the quality of the stiff silkworm and meeting a more reasonable and feasible quality standard, and the method has practical popularization and application values.

Method for judging fluid property of hydrocarbon reservoir according to gas logging

The invention provides a method for judging the fluid property of an oil and gas reservoir according to gas logging. The method comprises the steps that firstly, underground fluid sampling is conducted; 2, determining the fluid property of an oil and gas reservoir where the fluid sample is located; 3, identifying parameters of the same fluid sample by a gas logging method; step 4, constructing a gas logging identification plate: taking cp5 as a horizontal coordinate and wh as a vertical coordinate; the gas logging parameters wh and cp5 correspond to the corresponding fluid properties; dividing the gas logging identification chart into the following areas: a dry gas water layer, a wet gas water layer, a light oil-water layer, a light oil-water layer, a residual oil-water layer, a dry gas layer, a wet gas layer, a light oil layer, a general oil layer and a residual oil layer; and step 5, acquiring gas logging data of a to-be-logged well, and judging the fluid type of the oil and gas reservoir ...

Shuts the heart load feedback in the hydraulic system of the two-stage priority structure control valve block

... 闭心负载反馈液压系统中的两级优先结构控制阀块，包括：优先阀阀体、负载反馈单向阀、二级优先阀平衡阻尼、二级优先阀芯、二级优先阀复位阻尼、二级优先阀复位弹簧、转向限压阀、级优先阀复位阻尼、级优先阀复位弹簧、级优先阀芯、级优先阀平衡阻尼、级优先阀止回阀；优先阀阀体内部设置有铸造腔和连接油道，级优先阀芯、级优先阀复位阻尼、级优先阀复位弹簧、级优先阀平衡阻尼、级优先阀止回阀依次安装在铸造腔内；二级优先阀芯、二级优先阀平衡阻尼、二级优先阀复位阻尼、二级优先阀复位弹簧依次布置在铸造腔内；所有部件由级、二级先后顺序，在优先阀阀体的铸造腔内结合为个整体，内部通过铸造油道相连。 ...

Wear-resistant and folding-resistant gold heating wire and preparation method thereof

The invention relates to a wear-resistant and folding-resistant gold heating wire and a preparation method thereof, and belongs to the technical field of heating wires. According to the invention, the modified adhesive agent is used as a chelating material, chromium carbide, diamond and other micro-powder are fixed on the surface of the bare wire of the resistance wire, and then compounding is carried out through a high-temperature sintering process, so that the wear resistance of the surface layer of the heating wire is improved, and the wear resistance is comparable to that of an electroplated wear-resistant layer; the coating has a strong chelation effect with a metal heating wire matrix and metal wear-resistant particles, the wear-resistant particles are stacked on the surface of the heating wire matrix layer by layer and then sintered and carbonized at a high temperature to form a stable wear-resistant layer, and compared with a wear-resistant coating with a coating film-forming property ...

Angle can be adjusted formula solar water heater device

... 本实用新型公开一种角度可调节式太阳能热水器装置，所述的角度调节载板通过活动铰安装在底板上，角度调节载板能够以活动铰为支点旋转，所述的导轨固定安装在底板上，下滑动轮安装在导轨上，所述的支撑柱安装在下滑动轮上，支撑柱的顶端安装上滚子，所述的气缸轴的左端固定在支撑柱的中央，气缸轴的右端安装在气缸内，所述的真空集热管和保温水箱安装在角度调节载板上，所述的底板的右端和角度调节载板的右端通过调节拉簧连接。本实用新型其设计科学合理，结构简单，使用方便。 ...

Amino acid modified ionic liquid as well as preparation method and application thereof

The invention provides amino acid modified ionic liquid as well as a preparation method and application thereof. The amino acid modified ionic liquid is an A-B structure compound containing cations A and anions B, the cation A is an alkyl quaternary ammonium ion of which the branched chain only contains one hydroxyl group; the anion B is different amino acid modified aromatic folic acid, and the different amino acid modified aromatic folic acid is a monomer of a general formula B structure, the same and/or mixed amino acid dipeptide and/or polypeptide. The amino acid modified ionic liquid provided by the invention not only has better oral safety, but also obviously enhances oral absorption of drugs, and can be used as a drug carrier, a dissolving agent, a penetration enhancer, a diluent and/or a dispersing agent and a surfactant in the field of drugs. The dispersion liquid is used for dispersing active pharmaceutical ingredients, enhancing the solubility and/or permeability of the active ...

Welding fixing frame for copper-clad steel and exothermic welding method

The invention relates to the technical field of welding fixing frames, and discloses a copper-clad steel welding fixing frame and an exothermic welding method.The copper-clad steel welding fixing frame comprises a lower die base, baffles are arranged on the front side and the rear side of the top of the lower die base correspondingly, an upper die is arranged above the baffles, and a flow guide hole is formed in the bottom end of the upper die; a reaction bin is formed in the top end of the upper mold, a welding flux bin is arranged in the reaction bin, the flow guide holes communicate with the reaction bin, an ignition groove communicating with the reaction bin is formed in the front end of the upper mold, a cover plate is hinged to the side, away from the ignition groove, of the top end of the upper mold, and when the cover plate is closed, a plurality of hand-twisted screws are arranged at the top for fixing. The copper-clad steel welding fixing frame has the advantages that the connecting ...

Real-time control method for temperature and humidity of multi-area variable air volume air conditioning system

The invention discloses a real-time control method for temperature and humidity of a multi-area variable air volume air conditioning system. The real-time control method comprises the following steps that (1) room temperature and humidity values are set; (2) acquiring the temperature and humidity of the room through a temperature and humidity sensor; (3) decoupling the temperature and humidity of the room by using a deep fuzzy cognitive map; (4) the decoupling values of the temperature and the humidity of the room are compared with a set value, difference is obtained, and if the difference value is not equal to 0, the difference value serves as a control error e (k) to be input into an RBF-PID algorithm; (5) the opening degree of a tail end air valve and the opening degree of a cold water valve at the next moment are obtained through an RBF-PID algorithm; (6) the controller controls a tail end air valve and a cold water valve to reach proper opening degrees; and (7) circularly executing ...

Mathematical model for calculating temperature and humidity of multi-area building room

The invention discloses a mathematical model for calculating the temperature and humidity of a multi-area building room. The modeling process comprises the following steps: (1) dividing a building envelope structure into a two-layer structure; (2) dividing the air-conditioned room into an air supply area, a working area and an air return area; (3) establishing an energy balance equation of each node, the inner surface and the outer surface of the building envelope; (4) establishing an energy balance equation and a humidity balance equation of the air supply area, the working area and the air return area; (5) simplifying the formula; and (6) expanding the single-room mathematical model to a multi-region mathematical model of the whole building. According to the method, the heat conduction process of the building envelope structure is analyzed and described by using the RC network method under the condition of considering the operation of the air conditioning system and the internal and external ...

Carrier-free nano-drug as well as preparation method and application thereof

The invention discloses a carrier-free nano-drug as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out co-self-assembly on a modified hydrophobic anti-cancer drug and alpha-TOS to prepare the carrier-free nano-drug, wherein the modified hydrophobic anti-cancer drug is a hydrophobic anti-cancer drug containing a protecting group. The carrier-free nano-drug provided by the invention is simple in preparation method, high in drug loading capacity, good in stability and free of potential carrier material toxicity, and the problems that a traditional nano-delivery system is low in drug loading capacity, inactive carriers are used massively, and the potential toxicity of the carriers is caused are solved; the problem that a small amount of inert materials are still used for enhancing the stability of nanoparticles in an existing carrier-free nano system is solved. The problem of universality of hydrophobic anti-cancer drugs ...