Detection method of residual polybrominated diphenyl ether in cosmetics with gas chromatography-mass spectrum method

The invention relates to a detection method of residual polybrominated diphenyl ether, in particular to a detection method of residual polybrominated diphenyl ether in cosmetics with gas chromatography-mass spectrum method; in the method, a sample is extracted in an accelerating way by solvent, normal hexane is used as extractant, and then gel extraction and Florisil cartridge purification are carried out, and then the gas chromatography-mass spectrum method, selected ion canning detection and an external standard method are used for quantifying. The detection method has the following characteristics that: 1. in the method, the gel extraction and Florisil cartridge purification are firstly combined to measure residual polybrominated diphenyl ether in cosmetics. 2. the solvent is adopted to carry out extraction in an accelerating way, and the gel extraction and Florisil cartridge purification are adopted, the gas chromatography-mass spectrum method is used for quantifying and determining ...

Application of mycorrhizal fungi in large-scale cultivation of gold thread lotus

Pipeline plug

The invention relates to the technical field of plastic pipes, in particular to a pipeline plug which is simple in structure and comprises a plug body, a connecting column, a blocking piece and a gap. A connecting column is arranged at the bottom of the plug, and a blocking piece is arranged at the top end of the connecting column. In the dismounting process, the blocking piece is pulled outwards, the plug can be taken out, time and labor are saved in the dismounting process, and damage to the plug caused by violent dismounting is reduced.

Hybridoma cell line 1C11 and anti-aflatoxin general monoclonal antibody generated by same as well as applications thereof

The invention provides a hybridoma cell line 1C11 and an anti-aflatoxin general monoclonal antibody secreted by the same as well as the applications thereof. The hybridoma cell line 1C11 can be used for preparing a high-titer aflatoxin antibody, and a mouse hydroperitoneum antibody is measured to reach 5.12*106 by using an ELISA (Enzyme-Linked Immunosorbent Assay). The anti-aflatoxin general monoclonal antibody has high sensitivity, respectively reaches the IC50 (50% inhibiting concentration) of aflatoxin B1, B2, G1 and G2 to be 1.2, 1.3, 2.2 and 18.0 pg/mL, is the antibody with highest sensitivity among currently reported four aflatoxin antibodies, is used for measuring the total aflatoxin amounts, i.e. the total amounts of the aflatoxin B1, B2, G1 and G2 and has great practical application values.

Method for measuring boric acid and borate in cosmetics by microwave digestion -ICP-MS

The invention relates to a method for detecting the content of boric acid and borate in cosmetics. A method for measuring boric acid and borate in cosmetics by microwave digestion -ICP-MS comprises the following steps of: performing microwave digestion on a cosmetic sample through nitric acid and hydrogen peroxide to decompose organic substances, guiding sample solution into an inductive coupling plasma mass spectrograph atomizer, loading the sample solution into high-temperature high-frequency plasma by argon to generate ionization so as to generate ions, feeding the ions into a mass spectrograph after the ions are focused, and detecting characteristic ion abundance of a boron element and an on-line internal standard beryllium element in the sample solution, wherein the characteristic ion abundance of the boron element is in direct proportion to the content of the boron element; and correcting a response value of the boron element according to the ratio of an actually measured beryllium ...

All -weather wind -proof and rain -proof helps fume extractor

The utility model belongs to the technical field of the technique is prevent wind to the chimney and specifically relates to an all -weather wind -proof and rain -proof helps fume extractor is related to, include: prevent wind a section of thick bamboo, shelter from lid and chimney pipe, it is outside to prevent wind the barrel casing to establish in the upper end of chimney pipe, shelters from the lid and hangs the top of establishing at the chimney pipe, shelters from the lid and passes through the leg joint with the chimney pipe, preventing wind a section of thick bamboo and chimney pipe to be connected through the guide plate, preventing wind the two upper and lower end face obliquely of a section of thick bamboo to set up, the upper and lower both ends face edge of just preventing wind a section of thick bamboo is for being parallel to each other and the same ellipse of shape, oval -shaped major axis and the minor axis of preventing wind the upper and lower both ends face of a section ...

Forward error correction encoding method, forward error correction decoding method and devices thereof

The invention provides a forward error correction encoding method, a forward error correction decoding method and devices thereof, wherein the forward error correction encoding method comprises the steps of filling filler in a message according to preset encoding rules and dividing the message with the filler into data blocks with equal length; generating redundancy error correction blocks according to the encoding rules and data blocks and removing the filler from the data blocks; respectively determining cyclic redundancy check values of the redundancy error correction blocks and the data blocks with the filler removed, and adding the cyclic redundancy check values into the corresponding redundancy error correction blocks and the data blocks with the filler removed; and leading the datablocks with the filler removed and the redundancy error correction blocks to compose forward error correction codes and sending the forward error correction codes to a receiving end. According to theprocessing ...

Anti-electromagnetic interference multilayer composite material and method for producing the same

Electromagnetic type clean water tap

The utility model discloses an electromagnetic type clean water tap, including leading main part and purifier, the through type structure of tap main part for being equipped with direct pipeline, the outlet pipe is connected to tap main part upside, the screw rod of intaking is connected to tap main part downside, purifier includes the shell and sets up at inside solenoid valve and the filter core of shell, purifier's water inlet is connected to the end of intaking of filter core, goes out the delivery port that purifier is connected to the water end (W. E. ), the solenoid valve sets up on purifier's water inlet, purifier's the delivery port and the screw rod of intaking are connected, be provided with the control switch of control solenoid break -make in the tap main part, control switch includes the magnetic reed switch, the magnetic reed switch passes through the wire with the solenoid valve and is connected, the magnetic reed switch is by strong magnetism revolution mechanic control ...

Height-adjustable finned radiator bracket

The invention discloses a height-adjustable finned radiator bracket, which is positioned at the bottom of a finned radiator and comprises a base, a lower supporting plate and an upper supporting plate, wherein the lower supporting plate is connected with the top part of the base, and a locking nut is fixed in the center of the lower supporting plate; the upper supporting plate is connected with the bottom part of the finned radiator; the center of the upper supporting plate is vertically connected with an adjusting screw capable of rotating axially; the adjusting screw is matched with the locking nut to form a nut and screw structure; and an anti-tilting screw rod is connected between the upper supporting plate and the lower supporting plate. The bracket has the advantages that: after the finned radiator is mounted, by adjusting the supporting height, an upward pre-ejecting force is applied to the finned radiator; after the oil injection in the finned radiator, the pre-ejecting force can ...

Automatic focusing telescopic sight

The utility model relates to an automatic focusing telescopic sight, by objective (1), graticule (2), inverted image lens (3), eyepiece (4) and control platform (6) constitution, graticule (2) set up between objective (1) and inverted image lens (3), and eyepiece (4) set up at inverted image lens (3) rear side, objective (1), graticule (2) set up on control platform (6) through moving movable support respectively. Graticule (2) set up in the focus coincide point of objective (1) and inverted image lens (3), objective (1) is focusing lens, and eyepiece (4) are collimating lens, aim the mark on graticule (2). The utility model has the advantages of possess the sufficient time as shooter, and the target is when static, automatic focusing telescopic sight high accuracy, high the magnification's advantage just can obtain abundant performance.

Formula of looking in distance gun sight

The utility model relates to a formula of looking in distance gun sight, by objective (1), graticule (2), inverted image lens (3) and eyepiece (4) constitution, graticule (2) set up between objective (1) and inverted image lens (3), and eyepiece (4) set up at inverted image lens (3) rear side. Graticule (2) set up in the focus coincide point of objective (1) and inverted image lens (3). Objective (1) is focusing lens, and eyepiece (4) are collimating lens. Aim the mark on graticule (2). The utility model has the advantages of possess the sufficient time as shooter, and the target is when static, formula of looking in distance gun sight high accuracy, high the magnification's advantage just can obtain abundant performance.

Coating material and preparation method thereof

The invention provides a coating material which comprises base material and a film plating on the base material, wherein, the film comprises a plurality of metal layers and a plurality of nitride layers of metal, and the nitride layers of metal are used for separating the adjacent metal layers, wherein, one of the metal layers is contacted with the surface of the base material, and one of the nitride layers of metal is the outmost layer. The film of the coating material provided by the invention has less defect concentration and has better inoxidability, wearing resistance and bonding force between the film and the base material. Furthermore, when the base material of the coating material is a permanent-magnet, the remnant magnetism of the coating material can basically achieve the level of a permanent-magnet before the film is plated, coercive force and magnetic energy product are both higher than the permanent-magnet before the film is plated, and the maximum working temperature is higher ...

Remote intelligent real time monitoring system for TD-SCDMA/GSM/CDMA synthesis network quality

The invention relates to a TD-SCDMA/GSM/CDMA integrated network quality remote intelligent real-time monitoring system, comprising a monitoring center, a master and a sub-machine, the monitoring center comprises a control main master server and a TCP/IP interface; the master comprises an intelligent control module and a TCP/IP digital transmission module, the intelligent control module comprises a CPU, a memory and a communication interface chip; the sub-machine comprises an intelligent control module and a testing module, the intelligent control module comprises a CPU, a memory and a communication interface chip; the master communicates with the sub-machine by a GPRS DTU and is connected with the TCP/IP interface of the monitoring center by the TCP/IP digital transmission module for communications. The system transmission in the technical proposal can be independent of a monitored mobile communication network and can automatically accurately discover various faults of mobile network and ...

Preparation method of long-term dehydration antirust oil

The invention discloses a preparation method of long-term dehydration antirust oil. The method comprises the following steps: A, preparing a film forming aid; B, preparing an antirust additive; C, weighing a dehydration additive; D, weighing an antioxidant; and E, forming, wherein 6-10 parts by weight of a film forming aid, 8-12 parts by weight of an antirust additive, 2-4 parts by weight of a dehydration additive, 1-2 parts by weight of an antioxidant and 75-85 parts by weight of mineral oil are weighed, are put into a stirring kettle, heated to 40-50 DEG C, and stirred for 40-60 minutes until all the components are fully dispersed and dissolved, the obtained material is taken out, and impurities are filtered out to obtain a finished product. Compared with the prior art, the method of theinvention has the advantages of simple preparation process, easy implementation, good use effect of the finished product, and long-term effectiveness.

Conversion connecting piece for plastic inspection well seat

The invention provides a conversion connecting piece for a plastic inspection well seat, which comprises a small rubber ring, a large rubber ring and a conversion joint, through the buckle and slot design and limiting design of the rubber rings and the conversion joint, the sealing performance when a special-shaped structure wall pipe is connected with the plastic inspection well seat is improved, and through the positioning design, the streamline design and the reinforcing rib design, the sealing performance is improved. The strength and the service life of the connecting piece are improved. The conversion connecting piece provided by the invention can be easily connected in place in a one-time socket mode, the rubber ring is not easy to turn over, and the construction efficiency is greatly improved.

Method for preparing gelatinous enteromorpha polysaccharide

The invention relates to a method for preparing gelatinous enteromorpha polysaccharide. In the method, enteromorpha is taken as a raw material and the gelatinous enteromorpha polysaccharide is prepared by the steps of hot water extraction, salt coagulation, acidification and desalination and dietary alkali neutralization. The method for preparing the gelatinous enteromorpha polysaccharide aims to make full use of enteromorpha resource, making waste profitable and relieving environment pollution caused by the enteromorpha. The method has the advantages of simple process, low production cost and contribution to industrial production. The prepared gelatinous enteromorpha polysaccharide has good taste, is convenient to eat and is edible after being dissolved into hot water to form gel-like gelatinous enteromorpha polysaccharide. Gel products with different gel intensities are obtained by adding different types of salt into the gelatinous enteromorpha polysaccharide.

Extension light source interferometry collimating system

The utility model relates to an extension light source interferometry collimating system, by laser lamp -house (1), beam splitting Prism (2), coupled system (3), interference chamber (4), collimating mirror (5), imaging lens (6), CCD (7), standard optical flat (8) and rotatory hair glass (9) constitution, standard optical flat (8) sets up between laser lamp -house (1) and beam splitting Prism (2), rotatory hair glass (9) sets up between beam splitting Prism (2) and coupled system (3). The utility model provides a demand of extension light source interferometry collimating system in order to satisfy interference measuring apparatus can the analysis verifies that optical system wavefront aberration to interference fringe's influence, can be used for the matched edge along the distortion and distortion influence to the interference pattern of the aberration of visual field through emulation.

Cinnamenyl thermoplastic elastomer and process for producing it

The invention relates to a novel styryl thermoplastic elastomer and a production method thereof. The styryl thermoplastic elastomer has the thermal reversible crosslinking characteristic. When the temperature is higher than 150 DEG C, the material has a linear structure and fluidity and can be processed as thermoplastic material. When the temperature is lower than 120 DEG C, the material has a crosslinking structure and can only be swelled in solvent but can not be dissolved. The method for producing the styryl thermoplastic elastomer is as follows: 1. thermal reversible crosslinking premix material is prepared; and 2. the styryl thermoplastic elastomer is prepared. The compression set of the styryl thermoplastic elastomer obtained by the invention is 50 percent of that of the traditionalthermoplastic elastomer under the same temperature condition and the styryl thermoplastic elastomer obtained by the invention is safer and more reliable than the traditional thermoplastic elastomer as sealing ...

Method for hierarchical mobile IPv6 to avoid inter-domain handover

The invention discloses a method for a hierarchical mobile IPv6 to avoid inter-domain handover, and aims to provide a method for dynamically handing over MAP to avoid inter-domain handover. The technical proposal is characterized by firstly constructing an MAP hierarchical list, then selecting an MAP which is the lowest hierarchy in the MAP hierarchical list according to MAP information received by an AR for log-in; searching by an MN with the obtained MAP hierarchical list, and finding out an MAP which has the same root node on branches on which AR-PAR used before MN handover and AR-NAR usedafter expected MN handover are arranged, and is nearest to an access router; determining handover from an PAR to an NAR is intra-domain handover or inter-domain handover, performing MAP binding update and HA binding update in advance to avoid the inter-domain handover if the handover is the inter-domain handover; finally handing over to the NAR when the detected signal strength of the NAR is stronger ...

Detection method for simultaneously measuring residue of nitroimidazoles drugs in royal jelly

The invention relates to a method for measuring the residue of nitroimidazoles drugs in royal jelly, in particular to a method for measuring the residue of nitroimidazoles drugs, such as 1-(2-hydroxyethyl)-2-hydroxy-methyl-5-nitroimidazol (MNZOH), 2-methyl-5-nitroimidazole, 2-hydroxymethyl-1-methyl-5-nitroimidazole (DMZOH/HMMNI), metronidazole (MNZ), dimetridazole (DMZ), ronidazole (RNZ), 5-chloro-1-methyl-4-nitroimidazole, 5-nitrobenzimidazole, 2-(2'-hydroxyisopropyl)-1-methyl-5-nitroimidazol (IPZOH), 2-isopropyl-1-methyl-5-nitroimidazol (Ipronidazole, IPZ) and the like, in the royal jelly bythe liquid chromatography-mass spectrometry/mass spectrometer (LC-MS/MS). The method comprises the following steps: precipitating protein by methanol; extracting; further carrying out the purification using HLB (hydrophilic-lipophilic balance) and C18 solid-phase extraction (SPE) columns; and measuring the residue by LC-MS/MS. The invention has the characteristics of high specificity, high sensitivity ...

SYSTEM AND METHOD OF CUSTOMIZING A USER INTERFACE PANEL BASED ON USER'S PHYSICAL SIZES

A method is performed at a computing system for customizing a user interface panel of a virtual space based on user locations. The computing system is communicatively connected to a head-mounted display wore by a user. The method includes: generating a virtual space including a user interface panel, the user interface panel having a default location in the virtual space; rendering the virtual space in the head-mounted display; measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user; determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and updating the user interface panel's default location in the virtual space in accordance with the user's location in the virtual space.

Method for decoloring in refining polyporusum bellatus

The invention belongs to the technical field of biological engineering, which relates to a method for decoloring in refining polyporusum bellatus. The method comprises the preparation of the polyporusum bellatus and a method for decoloring polyporusum bellatus solution by active carbon. The method provided by the invention has low decoloring cost, good effect, small damage to the polyporusum bellatus, and is suitable for industrial production.

Preparation method of mixed tea beneficial to preservation

The invention discloses a preparation method of mixed tea beneficial to preservation. The preparation method comprises the following steps: S1, treatment before picking; s2, performing premixing; s3, sunning; s4, stir-frying; s5, rolling; and S6, drying. The mixed tea prepared by the method disclosed by the invention is rich in fragrance, sweet in aftertaste and not dry and astringent. The passion fruit leaves and the oolong tea tender leaves are mixed according to the proportion of 7: 3 in the pan-firing process, and the shelf life of the tea prepared by the process is greatly prolonged. The shelf life can reach half a year at normal temperature, and the tea still has tea fragrance and sweet aftertaste after being stored for 5-6 months at normal temperature. The passion fruit seed oil is added in the pan-frying process, so that the effects of protecting color, retaining freshness, improving fragrance and preventing scorching can be achieved.

Local Vibrating Device for Prevention and Treatment of Sarcopenia

The present invention provides a local vibrating device for the prevention and treatment of sarcopenia, belonging to the field of sarcopenia treatment. The key points in the technical solution of the present invention are as follows: the local vibrating device comprises a central control module, a parameter setting module, a vibration control module and split-type capsules, wherein the split-type capsules comprise a split-type capsule 1 and a split-type capsule 2, and both the split-type capsule 1 and the split-type capsule 2 are composed of multiple segments of airbag units respectively, and the airbag unit in each segment at least comprises a deformable touch plate and a vibration generating device. The present invention can be used to automatically measure the elasticity of muscle tissues at different body parts, adjust the vibration amplitude in real time according to the measured values, and realize neuromuscular stimulation through local vibration, so as to prevent and treat sarcopenia ...

Low tension coil of transformer with split windings

The invention discloses a low voltage coil of a split transformer. The low voltage coil is a cylinder winding-typed structure and wires of the head and the tail of the low voltage coil pass through the exterior of the main magnetic leakage hollow passage of the split transformer. The low voltage coil adopts the cylinder-typed winding which can be made of normal wires or transposition wires. The outlet wire at the end of the low voltage coil is not necessary to pass through the main magnetic leakage hollow passage, thus improving safety; furthermore, the capacitor distribution of the winding is extremely good and has outstanding capability of impact voltage resistance, and the cost can be effectively reduced by the low voltage split transformer.

Hormone-free cultivation and rapid propagation method of dendrobium candidum axenic seedlings

The invention belongs to the biotechnology field and relates to a hormone-free cultivation and rapid propagation method of dendrobium candidum axenic seedlings. The hormone-free cultivation and rapid propagation method comprises the steps: germinating dendrobium candidum seeds in an axenic mode; forming and preserving protocorms and seedlings; rooting and proliferating unrooted seedlings, cultivating sound seedlings; and toughening and transplanting the axenic seedlings. The technology has convenient operation, small occupied space and low production cost, is convenient to industrially produceand apply on a large scale and is beneficial to retaining the excellent property of the seedlings and increase the use safety of the seedlings when being used for propagating the dendrobium candidum.

Laser polarization imaging system

The utility model relates to a laser polarization imaging system mainly includes laser instrument (1), polarization production device (2), transmitter (3), receiver (4) and polarization analytical equipment (5), laser instrument (1) and polarization produce device (2) and correspond the setting, the polarization produces device (2) and transmitter (3) are connected, receiver (4) and polarization analytical equipment (5) are connected. Still include CCD (6), CCD (6) are connected with polarization analytical equipment (5). The light that sent laser instrument (1) produces device (2) and transmitter (3) through the polarization and arrives observable target (7) back reflection go back to receiver (4), passes through polarization analytical equipment (5) again and arrives CCD (6). The utility model provides a laser polarization imaging system adopts laser to make the light source, has outstanding interference killing feature and anti -stealth ability, has improved the SNR, improves the image ...

Preparing method and application of white banksia rose endogenetic epiphyte product of snail optical black shell bacterium ketone A

The invention relates to a preparation method of a fungus secondary metabolite spiropreussione A and an application thereof in preparing antibiotics and antitumor drugs, belonging to the technology field of chemical and biological engineering. The invention provides a liquid fermentation process of spiropreussione A-producing Preussia sp. strain AS-5; a method for preparing the spiropreussione A from the AS-5 mycelia and the fermentation liquid; the structure and physical and chemical properties of the compound; and an inhibitor activity of the compound on Staphylococcus aureus and tumor cells. The inventive preparation method has the advantages of high growth speed of Preussia sp. strain AS-5, simple fermentation process, and low production cost. The secondary metabolite spiropreussione A from the AS-5 strain has the advantages of novel structure, high content in the fermentation product, and simple preparation method.

Two fungi for promoting seeds of Dendrobium to sprout

The invention discloses two fungi for promoting seeds of Dendrobium to sprout, which have great application value on sexual propagation of Dendrobium, mass production of seedlings and sustainable utilization of resources.

Waybill cost accounting method, device and equipment and storage medium

The invention discloses a waybill cost accounting method, apparatus and device, and a storage medium. The method comprises the steps of obtaining waybill information to be accounting; determining a transportation operation type according to the transportation tool information, the transportation route information and the carriage organization information in the waybill information; determining an operation cost proportion according to the waybill information and the transportation operation type; obtaining a waybill cost corresponding to the waybill information according to the operation cost proportion and a reference cost corresponding to the transportation operation type; according to the technical scheme, the operation cost proportion and the reference cost are determined according to the transportation operation type of the waybill information, the waybill cost corresponding to the waybill information is obtained according to the operation cost proportion and the reference cost corresponding ...

Method for producing polymer-straw composite material pipe

The invention provides a porcess for producing polymer-straw composite material pipe which comprises, mixing the following substances into composite material, polymer 30-90, powdered straw 10-70, impact modifier 0-20, foaming adjuvant 0-1.5, lubricating agent 0-4, PVC stabilizing agent 0-6, processing adjuvant 0-4, and charging the composite material into extrusion machine to obtain pipes.

Paecilomyces sp. fungi improving salvia miltiorrhiza output and total phenolic-acid content

A paecilomyces sp. fungi improving salvia miltiorrhiza output and total phenolic-acid content belongs to cladosporium sp. and has the preservation number of CGMCC No. 6627, and the name of the strain is 11736-34, and is 34# for short. When salvia miltiorrhiza is cultivated, 0.5-1.5 g of 34# fungal material is applied to the root of each salvia miltiorrhiza seedling, the fungal material and the salvia miltiorrhiza seedling are subjected to symbiosis cultivation for 4-6 months, and the 34# fungal material helps to improve the output of salvia miltiorrhiza at harvest time and the content of salvia miltiorrhiza total phenolic acids and salvianolic acid B. The technological method is simple and practicable and free of pollution, is applicable to artificial cultivation of salvia miltiorrhiza, is capable of effectively improving the output and the quality of the medicinal material, and has good application prospect.

Interferometry collimating system is used in inspection

The utility model relates to an interferometry collimating system is used in inspection, by laser lamp -house (1), beam splitting Prism (2), coupled system (3), interfere chamber (4), collimating mirror (5), imaging lens (6), CCD (7), computer (8) and filter (9) constitute, set gradually laser lamp -house (1) according to the light path direction, beam splitting Prism (2), coupled system (3), filter (9) and interference chamber (4), be provided with collimating mirror (5) and CCD (7) at beam splitting Prism (2) with laser lamp -house (1) lasing direction vertically direction, computer (8) are connected with CCD (7) and filter (9) respectively. The utility model provides a demand of interferometry collimating system is used in inspection in order to satisfy interference measuring apparatus can the analysis verifies that optical system wavefront aberration to interference fringe's influence, can be used for the matched edge along the distortion and distortion influence to the interference ...

Method, device and system of self-adaptive dynamic forward error correction coding

The invention discloses a method, a device and a system of self-adaptive dynamic forward error correction coding. The method comprises the following steps: launching coding consultation request information comprising a coding algorithm to a message transmission device on a communication link according to the current network status; receiving the coding consultation confirmation information that isreturned by the transmission device, and decoding messages received by the transmission device according to the coding algorithm. The device comprises a consultation transmission module and a receiving process module. In the technical schemes, a coding consultation mechanism can be established between the transmission device and a receiving device so as to establish the appropriate coding algorithm between the transmission device and the receiving device, therefore, the data transmission efficiency is improved while ensuring the data transmission reliability; and the invention can be suitablefor ...

Sequence combination for detecting biomolecules based on self-driven hybridization chain reaction, kit and application thereof

The invention provides a nucleic acid sequence and method for detecting biomolecules based on self-driven hybridization chain reaction (SHCR), the nucleic acid sequence comprises an initiation chain AI, a closed chain B, a hairpin probe H1, a hairpin probe H2, a hairpin probe H3 and a hairpin probe H4, the initiation chain AI comprises an aptamer sequence and an initial sequence I of a to-be-detected biomolecules, the sequence of the initial sequence I is a *-b *, and a * and b * are gene segments; the 5'end of the hairpin probe H1 is connected with b *, and the 3 'end of the hairpin probe H3 is connected with a *. The invention further provides a kit for detecting the biomolecules based on the SHCR and a method for detecting the residual quantity of the biomolecules, especially kanamycin in food. Through the ingenious design, when the biomolecules to be detected exist, the sequence combination of the biomolecules can initiate the self-driven hybridization chain reaction, so that the initiation ...

Process for producing fire-retardant high-tenacity terylene yarn

The invention relates to a process for producing a fire-retardant high-tenacity terylene yarn, which comprises the following steps: reforming equipment by using the prior industrial terylene yarn production line; adopting two sets of solid phase thickening devices; preparing high-viscosity polyester slices and high-viscosity fire-retardant master batches respectively, and thickening the high-viscosity polyester slices and the high-viscosity fire-retardant master batches, wherein the high-viscosity fire-retardant master batches are metered precisely according to certain proportion through a master batch adding machine and are mixed with the high-viscosity polyester slices, the optimal proportion of the two materials is controlled to be 12:88, so that the fire resistance and the tenacity are greatly improved; processing the two materials by a pin screw extruder, a meter and a spinneret plate; after slow cooling, lateral blowing and oiling, performing multi-stage hot-rolling stretching; and ...

Application of endogenous fungus in cultivation of snow lotus seedling and snow lotus

Indoor air environment control system and method based on Internet of Things

The invention belongs to the technical field of indoor air environment control, and particularly relates to an indoor air environment control system and method based on the Internet of Things. According to the invention, the collection frequency of each air monitoring point can be determined according to the indoor harmful gas concentration, and the corresponding monitoring period is set according to the collection frequency, so that the calculation result of the increase trend value of the indoor harmful gas concentration is more accurate; when the concentration of the harmful gas is increased, the measurement and calculation time of an increase trend value can be shortened by a faster acquisition frequency, when the harmful gas is not generated, the redundancy of acquired data can be reduced, and meanwhile, the increase or decrease of the concentration of the harmful gas is evaluated by setting a transient period, so that the accuracy of the measurement and calculation is improved. And ...

Access control method, host device and identifier router

The invention provides an access control method, a host device and an identifier router. The access control method comprises the following steps of obtaining an authentication user identifier of a host device after passing a host device authentication; performing match processing on the authentication user identifier and user entity identifiers in various service table entries in a service control table; and if the authentication user identifier is matched with the user entity identifier in the first service table entry of the service control table, sending a first service table entry announcement message to the host device, wherein the first service table entry announcement message comprises first service table entry information such that the host device performs access control processing according to the first service table entry information. According to the access control method, the host device and the identifier router disclosed by the invention, user access can be controlled in an ...

Medicine composition for treating heart failure and application thereof

The invention discloses a medicine composition for treating heart failure and application thereof. The medicine composition is prepared from an active ingredient and medicinal auxiliaries, wherein the active ingredient comprises (1) tortuosine and (2) trimetazidine or medicinal salt thereof. The medicine composition can be used for synergistically resisting myocardial apoptosis and protecting cardiac muscle mitochondria so as to achieve the aim of preventing and treating heart failure.

Cinnamenyl thermoplastic elastomer and process for producing it

The invention relates to a novel styryl thermoplastic elastomer and a production method thereof. The styryl thermoplastic elastomer has the thermal reversible crosslinking characteristic. When the temperature is higher than 150 DEG C, the material has a linear structure and fluidity and can be processed as thermoplastic material. When the temperature is lower than 120 DEG C, the material has a crosslinking structure and can only be swelled in solvent but can not be dissolved. The method for producing the styryl thermoplastic elastomer is as follows: 1. thermal reversible crosslinking premix material is prepared; and 2. the styryl thermoplastic elastomer is prepared. The compression set of the styryl thermoplastic elastomer obtained by the invention is 50 percent of that of the traditional thermoplastic elastomer under the same temperature condition and the styryl thermoplastic elastomer obtained by the invention is safer and more reliable than the traditional thermoplastic elastomer as ...

Storage method of dendrobe seed source and recovery method after storage

The invention belongs to the technical field of biological engineering and relates to a storage method of a dendrobe seed source and a recovery method after storage, comprising the long-term storage and the growth recovery of seeds or protocorm or seedlings. By applying the technique, the storage time of seeds is long, the quality of the seeds is steady, the seed storage technology is simple, the technique is steady and reliable, the repeatability is strong, and the method is suitable for the storage of large-scale dendrobe seed sources.

Telescopic sight can filter

The utility model relates to a telescopic sight can filter, by objective (1), graticule (2), inverted image lens (3), eyepiece (4) and light filter (6) constitution, graticule (2) set up between objective (1) and inverted image lens (3), and eyepiece (4) set up at inverted image lens (3) rear side, light filter (6) set up between objective (1) and graticule (2). The utility model has the advantages of possess the sufficient time as shooter, and the target is when static, telescopic sight can filter high accuracy, high the magnification's advantage just can obtain abundant performance.

Surface treatment method for light metal material

A surface treatment method of light metal material comprises the following steps of: forming a metal plating layer on the surface of a light metal material, wherein a micro-arc oxide film layer is formed on the surface of the light metal material before forming the metal plating layer. By sequentially carrying out micro-arc oxidization treatment and metal plating film, the invention can greatly improve the bonding force between the metal plating layer and the surface of the light metal material. For example, the bonding force of the metal film layer of a magnesium alloy material prepared by the method in the invention is over 4 B, while the bonding force of the metal film layer of a magnesium alloy material prepared by the prior art is only 2 B. Additionally, the invention is a high-quality surface treatment process and can greatly improve the corrosion resistance and appearance decoration of the material.

Preparing method of high-flatness and high-gloss PVDF (polyvinylidene fluoride) coating

The invention provides a preparing method of a high-flatness and high-gloss PVDF coating. According to the preparing method of the high-flatness and high-gloss PVDF coating, high-flatness mirror-surface steel roller are utilized for extruding the PVDF coating in a hot melt state, so that the PVDF coating can appear a very flat surface and transnormally-high gloss. The preparing method of the high-flatness and high-gloss PVDF coating achieves first successful preparation of the high-gross PVDF coating and changes the condition that the gross of the PVDF coating is difficult to improve, thereby having a relatively high practical application value.

Fungus for promoting orchid seeds to germinate

The invention discloses a fungus for promoting orchid seeds to germinate. The classified name of the fungus is tulasnellasp. fungus Bsg14 with the preservation number of CGMCC No.2451. The strain has important significance for solving the seed germination problems of dendrobium plants in orchidaceae and bletilla plants, can be sown with the orchid seeds and capable of used for culturing seedling-raising trays, flowerpots or seedbeds or cultivating the land for growing field crops and has application value for obtaining the seedlings instead of tissue culture.

Method for presenting entity popularity through video searching and playing behaviors

The invention discloses a method for presenting entity popularity through video searching and playing behaviors. The method for presenting the entity popularity through the video searching and playing behaviors includes that selecting a certain sample time period, and selecting a plurality of sample entities with the same type to serve as sample objects; selecting a plurality of typical indexes which may represent the sample object popularity; confirming a research time for each sample object, calculating the standard deviation of each typical index in the research time, and averaging a plurality of standard deviations of the same typical index so as to respectively average the standard deviations; using the average standard deviations of different typical indexes to analyze weighted values of different typical indexes through an AHP analytic hierarchy process; multiplying the single-day standard value of each index of a sample by the weighted value to obtain the actual popularity weight ...

Textile fabric punching equipment

The textile fabric punching equipment comprises a bottom plate, vertical plates are fixedly connected to the positions, close to the left side and the right side, of the top of the bottom plate, a top plate is jointly and fixedly connected to the positions, close to the top, between the vertical plates, connecting grooves are formed in the top of the bottom plate and an inner cavity of the top plate, and open grooves are formed in the positions, close to the bottoms, of inner cavities of the vertical plates; two rollers are inserted into an inner cavity of each open groove, and through mutual cooperation of a second electric telescopic rod, a supporting plate, a grinding column, a pedal and other structures, the first electric telescopic rod can drive a connecting plate and a connecting column to move, the connecting column can drive the second electric telescopic rod to move, and the second electric telescopic rod can drive a punching impact head to move; the punching impact head punches ...

Preparation method of high-gamma-aminobutyric acid germinated brown rice and selenium-enriched germinated brown rice

The invention discloses a preparation method of germinated brown rice with high gamma-aminobutyric acid content. The preparation method comprises the following steps: by adopting brown rice prepared by husking rice which is harvested within half a year as a raw material, soaking the brown rice for 2-4 hours by using a soaking solution, germinating soaked brown rice in a container filled with nitrogen, performing water washing on the germinated brown rice by using a deionized aqueous solution containing cell growth factors and sodium salicylate, treating the germinated brown rice subjected to water washing by using phytase, and then performing microwave drying on the treated germinated brown rice to prepare the germinated brown rice with the water weight content of 8-10%. The preparation method of the germinated brown rice disclosed by the invention is short in processing flow and simple, convenient and feasible in technological process, can be used for reducing the influences of a processing ...

Method for synchronously detecting 54 medicament residues in pork by virtue of solid phase extraction-liquid chromatogram-mass spectrum/mass spectrometry

The invention relates to a detection method of medicament residues in animal products, in particular relating to a method for synchronously detecting 54 medicament residues in pork by virtue of solid phase extraction-liquid chromatogram-mass spectrum/mass spectrometry. The method for synchronously detecting the 54 medicament residues in the pork by virtue of solid phase extraction-liquid chromatogram-mass spectrum/mass spectrometry comprises acetonitrile extraction, n-hexane derosination, small column purification by virtue of C18 solid phase extraction, measurement by virtue of liquid chromatogram-mass spectrum/mass spectrometry (LC-MS/MS), dilution of virtue of an internal standard method based on an isotope internal standard, and quantification by virtue of an external standard method, wherein the recovery range is 21.1%-121%; and the relative standard deviation is less than 19.8%. The method can be used as a screening method for synchronously detecting the 54 medicament residues, such ...

Regulation type student sight protection device

The utility model discloses a regulation type student sight protection device, comprising a supporting bar, top at the bracing piece is equipped with the bracket, bottom at the bracing piece is equipped with the grip block, be equipped with the draw -in groove on the outer wall of bracing piece, be equipped with concertina type frame pole in the draw -in groove, be equipped with the slope through -hole on the grip block, stretch out and draw back in the slope through -hole in concertina type frame pole's bottom, be equipped with flexible control cylinder between the roof of concertina type frame pole and draw -in groove, junction at bracket and bracing piece is equipped with the rotary disk, be equipped with rotatory ring at the middle part of bracing piece, it strengthens branch to be equipped with between the bottom of rotatory ring and bracket, be equipped with to tight cylinder between the top of rotatory ring and bracing piece. The utility model has the advantages of simple structure ...

Musodormenghaiensis having biological prevention and control effect

The invention discloses an aerogenesis mildew fungus which has an inhibition effect on various plant pathogenic microorganisms and human pathogenic microorganisms, namely Musodormenghaiensis; the aerogenesis mildew can be used for biological prevention and control on the plant pathogenic microorganisms and the human pathogenic microorganisms, and has development and utilization values.

SYSTEM AND METHOD OF INSTANTLY PREVIEWING IMMERSIVE CONTENT

A method is performed at a computing system for rendering a content preview in a virtual space based on user locations. The computing system is communicatively connected to a head-mounted display wore by a user. The method includes: rendering a user interface panel in the virtual space, wherein the user interface panel includes multiple content posters, each having a unique location in the virtual space; measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user; determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and in accordance with a determination that the user's location and at least one of the multiple content posters' location in the virtual space satisfy a predefined condition, replacing the user interface panel with a content preview associated with the corresponding content poster in the virtual space. 1. A method of rendering a content preview in a virtual space based on user locations , the method comprising: rendering a user interface panel in the virtual space, wherein the user interface panel includes multiple content posters, each having a unique location in the virtual space;', "measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user;", "determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and", "in accordance with a determination that the user's location and at least one of the multiple content posters' location in the virtual space satisfy a predefined condition, replacing the user interface panel with a content preview associated with the corresponding content poster in the virtual space."], 'at a computing system having one or more processors, memory for storing programs to be executed by the one or more processors, wherein the computing system is communicatively connected to a head- ...

Detection method of residual polybrominated diphenyl ether in cosmetics with gas chromatography-mass spectrum method

The invention relates to a detection method of residual polybrominated diphenyl ether, in particular to a detection method of residual polybrominated diphenyl ether in cosmetics with gas chromatography-mass spectrum method; in the method, a sample is extracted in an accelerating way by solvent, normal hexane is used as extractant, and then gel extraction and Florisil cartridge purification are carried out, and then the gas chromatography-mass spectrum method, selected ion canning detection and an external standard method are used for quantifying. The detection method has the following characteristics that: 1. in the method, the gel extraction and Florisil cartridge purification are firstly combined to measure residual polybrominated diphenyl ether in cosmetics. 2. the solvent is adopted to carry out extraction in an accelerating way, and the gel extraction and Florisil cartridge purification are adopted, the gas chromatography-mass spectrum method is used for quantifying and determining ...

Muscodor mengyangensis having biological prevention and control effects

The invention discloses a Muscodor fungus, namely, muscodor mengyangensis, having an inhibiting effect on multiple plant pathogenic microorganisms and human pathogenic microorganisms. The muscodor mengyangensis can be used in biological prevention and control of the plant pathogenic microorganisms and human living environment pathogenic microorganisms, and has values of development and utilization.

Positioning device and method

The invention provides a positioning device and method, and the device comprises an acquisition module (A) which is used for generating illumination light; the dimming module (B) is used for splitting the illumination light to generate reference light and measuring light; the sensing module (C) comprises a reference reflector (4) and a measurement reflector (5), the reference reflector (4) is configured to be arranged on a fixed base of the device to be measured and used for reflecting the reference light to obtain reference reflected light, and the measurement reflector (5) is configured to be arranged on a movable component of the device to be measured and used for reflecting the measurement light to obtain measurement reflected light; wherein the dimming module (B) is also used for combining the reference reflected light and the measurement reflected light to obtain combined light; and the acquisition module (A) is also used for measuring spectral data of the combined light and outputting ...

Wallboard mounting equipment for fabricated building

The invention provides assembly type building wallboard mounting equipment which comprises a lifting seat, an adjusting assembly is arranged in the center of the surface of the lifting seat and comprises a groove, a sliding rod is arranged in the groove, the surface of the sliding rod is sleeved with a sliding sleeve, a rotating seat is arranged on the surface of the sliding sleeve, and a connecting sleeve is arranged above the rotating seat; the two connecting plates are arranged on the two sides of the surface of the connecting sleeve correspondingly, the surfaces of the two connecting plates are sleeved with adjusting assemblies correspondingly, each adjusting assembly comprises two sliding grooves, sliding blocks are slidably connected into the two sliding grooves, an adjusting frame is connected between the two sliding blocks, and a first pushing device and a second pushing device are arranged in the two connecting plates correspondingly. According to the wallboard mounting equipment ...

Wrapped type polytetrafluoroethylene hollow fiber membrane

The utility model discloses a polytetrafluoroethylene hollow fiber membrane. The polytetrafluoroethylene hollow fiber membrane comprises polytetrafluoroethylene hollow fiber with the aperture of 0.5 to 2 microns and at least one microporous polytetrafluoroethylene membrane layer which is arranged on the outer ring wall of the polytetrafluoroethylene hollow fiber and is 0.02 to 0.5 micron in aperture and 5 to 100 microns in thickness. The polytetrafluoroethylene hollow fiber membrane provided by the utility model has the advantages of small filter aperture, high filter precision, high porosity, high filter flux and high strength.

Upper part pressing device of power transformer

The invention discloses an electric transformer upper part pressing device, comprising a pressing nail bracket which is fixed on a clamping part wed plate, and a back-pressing nail which is fixed on the pressing nail bracket; the back-pressing nail presses on a pressing nail cushion block which is closely attached to the transformer. The pressing device has small space occupying and large pressing area, is especially suitable for 220kv super-large electric transformers, and adopts the pressing nail cushion block with plate bodies of semi-round arranged at two ends, so as to facilitate the arrangement of pressing nails. The electric transformer upper part pressing device not only meets the uniform distribution of pressing nails, but also increases the pressing area, thus having good processing performance and better universality.

Cascade nano bioreactor based on metal organic framework as well as preparation method and application of cascade nano bioreactor

The invention relates to a cascaded nano bioreactor based on a metal organic framework as well as a preparation method and application of the cascaded nano bioreactor, and relates to the field of new functional materials and biosensing detection. According to the invention, a novel nano bioreactor is constructed based on a multi-enzyme cascade reaction and a Fenton reaction, the reactor takes ZIF-8 as an immobilization carrier, and AChE, CHO and GSH-AuNCs are jointly encapsulated in the ZIF-8 respectively, so that the novel nano bioreactor is obtained. The cascade nano bioreactor prepared by the invention has the remarkable characteristics of simplicity in operation, high sensitivity and high accuracy when being used for organophosphorus detection, has a good application prospect, and provides favorable guarantee for food safety.

I type pyrethroid universal hapten compound and synthetic method thereof

The invention relates to a I type pyrethroid general hapten compound applied to the pesticide artificial antigen and antibody preparation field and a synthesizing method thereof. The I type pyrethroid general hapten compound is 4-carbonyl-4-(3-phenoxylbenzyloxy) butyric acid, which has main raw materials of m-phenoxy benzene methanol and butanedioic anhydride which are respectively dissolved in methylene dichloride to make up solution; through being dropped, the butanedioic anhydride solution and the m-phenoxy benzene methanol solution are mixed and reacted; after the reaction and a purification treatment, the compound can be obtained. The method can be coupled with carrier protein to prepare antigen and prepare antibody for immuneanimal, and develop an immunity analysis method for rapidly detecting pyrethroid insecticide residue; synthesized hapten has common structure with more pyrethroid pesticide and has stronger popularity; through one step of reaction to synthesize hapten compound ...

Safe telescopic channel for driver of suspension type tower crane

The invention provides a safety telescopic channel for a driver of a suspension type tower crane. Comprising a main channel, an extension channel, a sliding rail and a plurality of lifting assemblies. The near end part of the main channel is fixedly connected with a plurality of U-shaped bolts, the plurality of U-shaped bolts are matched with a horizontal chord member of the standard knot, the far end of the main channel extends towards the outer side of the standard knot, the sliding rail is fixedly connected to the upper side of the main channel, the trend of the sliding rail is consistent with the length direction of the main channel, and the sliding rail is matched with the extension channel; the hoisting assembly comprises a pull rod and a hook, one end of the pull rod is fixed to the main channel, the other end of the pull rod is connected with the end of the hook, the hook is matched with a horizontal chord member of the standard knot, and the horizontal height of the horizontal ...

Functional equipment pad for physical education

The utility model relates to the technical field of sports equipment, in particular to a functional equipment pad for physical education, which comprises an outer cover and a connecting rod, fixing blocks are fixedly connected to the left side and the right side of the front end of the outer cover, rotating seats are rotatably connected to the inner sides of the fixing blocks, and connecting blocks are fixedly connected to the centers of the front ends of the rotating seats. A connecting rod is slidably connected to the inner side of the connecting block, clamping blocks are slidably connected to the inner sides of the upper side and the lower side of the fixing block, springs are fixedly connected to the ends, away from the rotating seat, of the clamping blocks, supporting layers are arranged on the upper side and the lower side of the inner side of the outer cover, and a buffer layer is fixedly connected between the supporting layers located on the upper side and the lower side. According ...

Method for using fungus to elicit dragon tree to produce sangusis draconis

The invention relates to a method for using fungus to elicit a dragon tree to produce sangusis draconis, belonging to the biotechnological field. One used fungi is a Fusaria (Fusarium sp.) fungus D-22. The content comprises the culture method and the inoculation method of the fungi. By adopting the method, the trunk of the dragon tree to elicited to secrete red substances similar to the chemical ingredients of sangusis draconis. The invention has the advantages that the method is simple and convenient, the production cost is low, the period is short, the dragon tree resources are fully utilized and protected, and the popularization and the application are facilitated.

II type pyrethroid universal hapten compound and synthetic method thereof

The invention relates to a II type pyrethroid general hapten compound applied to the pesticide artificial antigen and antibody preparation field and a synthesizing method thereof. The compound is alpha-cyan (3-phenoxyl phenyl) methyl-4-chlorine-4-carbonyl butyric ester, wherein, alpha-cyano inter phenoxy benzene methanol and succinimide chloride are main raw materials which are respectively dissolved in methylene dichloride; then alpha-cyano inter phenoxy benzene methanol solution is slowly dropped into succinimide chloride solution; simultaneously, triethylamine is added to have a hybrid reaction; through decompression, fractionation and purification after the reaction, the compound is obtained. The invention is easy to realize a covalent binding between hapten and carrier protein, therefore a chemical reaction between terminal acyl chloride structure (-COCl) and amino of carrier protein (-NH2) occurs to prepare artificial antigen; through one step to synthesize hapten compound, the II ...

Production method for active carbon electrode material of load transition metal and application thereof

The invention belongs to the material science and electrochemistry technical field, in particular to a preparation method for activated carbon electrode material of supported transition metal and an application thereof; the particular step is that: the activated carbon and the inorganic metallic compound are used as raw materials, the activated carbon is immerged with the inorganic metallic salt solution and stirred, impregnated, filtered and then dried; under the condition of the protective gas, the sample undergoes the heat treatment at a temperature of between 200 and 800 DEG C, getting the electrode material of electrochemistry capacitor; the specific capacitance of the supported NiO/Ni activated carbon material prepared by the method is increased by 42 percent compared with that of the activated carbon when the supported NiO/Ni activated carbon material is used as the electrode of the electrochemistry capacitor; moreover, the supported NiO/Ni activated carbon material has the advantages ...

Method for preparing aflatoxin G1 artificial antigen

The present invention relates to a method for preparing artificial antigens by the coupling of aflatoxin G1 and protein carrier macromolecules. Meta-Chloroperoxybenzoic acid is used to oxidize the double bonds of aflatoxin G1 molecular difuran rings, so that highly active aflatoxin G1 epoxide is formed, then, under the indoor temperature, the aflatoxin G1 epoxide is linked with the amidogen of carrier protein in a biphasic system, and finally, the aflatoxin G1 artificial antigens are prepared after dialysis, refrigeration and drying. The method has the following advantages: (1) Aflatoxin G1 artificial antigens can be effectively prepared, so that antibodies which can identify aflatoxin G1 are produced, which is significant for the immune analysis technology applied to test aflatoxin G1; (2) The whole preparation process is simple and feasible, does not need special apparatuses, has low cost and is suitable for mass production and promotion; (3) The aflatoxin G1 artificial antigens prepared ...

Thing frame is put with dismantlement formula desktop to student

The utility model discloses a thing frame is put with dismantlement formula desktop to student, the on -line screen storage device comprises a base, be equipped with the cavity on the base, be equipped with horizontal slide bar in the cavity, still be equipped with in the bottom of base and be used for fixing the clamp splice at the desktop with the base, be equipped with the bolt that is locked on the clamp splice, be equipped with the rack on the base, the bottom of rack is equipped with and horizontal slide bar matched with slider, still be equipped with the rotary disk in slider and rack junction, be equipped with the buffering pressure spring on the lateral wall of cavity, horizontal slide bar passes the setting of buffering pressure spring, the lateral part activity butt of slider is on the buffering pressure spring, still be equipped with on the base and press from both sides a groove strip, be equipped with the clamp plate on the inner wall that presss from both sides a groove strip ...

Method for preparing aflatoxin G1 artificial antigen

The present invention relates to a method for preparing artificial antigens by the coupling of aflatoxin G1 and protein carrier macromolecules. Meta-Chloroperoxybenzoic acid is used to oxidize the double bonds of aflatoxin G1 molecular difuran rings, so that highly active aflatoxin G1 epoxide is formed, then, under the indoor temperature, the aflatoxin G1 epoxide is linked with the amidogen of carrier protein in a biphasic system, and finally, the aflatoxin G1 artificial antigens are prepared after dialysis, refrigeration and drying. The method has the following advantages: (1) Aflatoxin G1 artificial antigens can be effectively prepared, so that antibodies which can identify aflatoxin G1 are produced, which is significant for the immune analysis technology applied to test aflatoxin G1; (2) The whole preparation process is simple and feasible, does not need special apparatuses, has low cost and is suitable for mass production and promotion; (3) The aflatoxin G1 artificial antigens prepared ...

Method for simultaneously measuring various drug residues in honey by utilizing liquid chromatogram tandem mass spectrum isotope dilution method

The invention relates to a method for detecting various drug residues in honey, in particular relating to a method for simultaneously measuring various drug residues in honey by utilizing a liquid chromatogram tandem mass spectrum isotope dilution method. The method provided by the invention comprises the following steps: directly diluting by virtue of a phosphate buffer solution the pH value of which is equal to 8; carrying out HLB (Hydrophile Lipophile Balance) extraction and purification; carrying out measurement by utilizing the liquid chromatogram tandem mass spectrum isotope dilution method (LC-MS/MS); and quantifying by utilizing the internal standard method and external standard method of isotope internal standard dilution; and measuring low-limit sulfanilamide drugs to be 1.0 mu g/kg, nitromidazoles drugs to be 1.0 mu g/kg, carbostyril drugs to be 2.0 mu g/kg, macrolide drugs to be 3.0 mu g/kg, lincosamides drugs to be 2.0 mu g/kg and praziquantel to be 0.3 mu g/kg. The method ...

Enteromorpha prolifera jelly and preparation method thereof

The invention provides enteromorpha prolifera jelly and a preparation method thereof, and the enteromorpha prolifera jelly comprises the following main components by weight percent: 0.35%-0.55% of enteromorpha prolifera extract, 15%-22% of white granulated sugar, 0.30%-0.40% of konjac gum, 0.05%-0.25% of carrageenan, 0.15%-0.30% of citric acid, 0.05%-0.10% of essence and water which is added till100%. The preparation method comprises the following steps: mixing the white granulated sugar, the konjac gum and the carrageenan, adding water for soaking, heating till boiling, adding the enteromorpha prolifera extract under the boiling state, dissolving, and keeping the temperature for 15 minutes-20 minutes; filtering for removing impurities and particulate matters; and adding the citric acid and the essence, filling, sterilizing and finally getting the enteromorpha prolifera jelly. The enteromorpha prolifera jelly retains the characteristics of traditional jelly, is lubricating in mouth feel ...

High-sensitivity immunochromatographic test strip for detecting total aflatoxin content quickly and preparation method thereof

The invention belongs to the field of biological detection and provides a high-sensitivity immunochromatographic test strip for detecting total aflatoxin content quickly, which is characterized by comprising a test strip, wherein a water-absorbing pad, a detection pad, a gold label pad and a sample pad are adhered on one side of the test strip from top down; the pads are overlapped at the connected parts; the detection pad uses a nitrocellulose film as a substrate pad; transverse quality control lines and detection lines are arranged on the nitrocellulose film from top down; the detection lines are coated with aflatoxin B1-bovine serum albumin (AFB1-BSA) coupling and the quality control lines are coated with rabbit anti-mouse polyclonal antibody; and a nano gold-labeled anti-aflatoxin common monoclonal antibody, which is generated by hybrid tumor cell strain 1C11 having a collection number of CCTCC No.C201013, is sprayed on the gold label pad transversely. The test strip is used for detecting ...

Detection method for simultaneously measuring residue of nitroimidazoles drugs in royal jelly

The invention relates to a method for measuring the residue of nitroimidazoles drugs in royal jelly, in particular to a method for measuring the residue of nitroimidazoles drugs, such as 1-(2-hydroxyethyl)-2-hydroxy-methyl-5-nitroimidazol (MNZOH), 2-methyl-5-nitroimidazole, 2-hydroxymethyl-1-methyl-5-nitroimidazole (DMZOH/HMMNI), metronidazole (MNZ), dimetridazole (DMZ), ronidazole (RNZ), 5-chloro-1-methyl-4-nitroimidazole, 5-nitrobenzimidazole, 2-(2'-hydroxyisopropyl)-1-methyl-5-nitroimidazol (IPZOH), 2-isopropyl-1-methyl-5-nitroimidazol (Ipronidazole, IPZ) and the like, in the royal jelly by the liquid chromatography-mass spectrometry/mass spectrometer (LC-MS/MS). The method comprises the following steps: precipitating protein by methanol; extracting; further carrying out the purification using HLB (hydrophilic-lipophilic balance) and C18 solid-phase extraction (SPE) columns; and measuring the residue by LC-MS/MS. The invention has the characteristics of high specificity, high sensitivity ...

Tea bag with store up tealeaves structure

The utility model discloses a tea bag with store up tealeaves structure, including branch, bottom branch is equipped with the tea bag, top branch is equipped with the pothook, top branch still is equipped with the storage caddy, be equipped with the tealeaves passageway between storage caddy and tea bag, be equipped with sealed control valve at tealeaves passageway and storage caddy junction, the tea bag is by a packet box, be built by contract and slide are constituteed, the slide is linked together with the bottom of tealeaves passageway, bottom at packet box is equipped with the baffle, the one end of baffle is connected with the bottom of wrapping the box through the pivot, the other end and the package box swing joint of baffle, inner wall storing up the caddy is equipped with dampproofing cavity, be equipped with dampproofing particle filling layer in dampproofing cavity, bottom storing up the caddy is equipped with the minidrum fan, the interior tealeaves of storage caddy gets into ...

Little material scanning electron microscopic system

The utility model relates to a little material scanning electron microscopic system mainly includes scanning generator (1), picture tube (2), enlargies converter (3), amplifier (4), collector (5), test sample table (6), filament (7), a plurality of lens and microcomputer (13), amplifier (4) are connected with picture tube (2), collector (5) and test sample table (6) respectively, and a plurality of lens settings are in filament (7) below, microcomputer (13) are connected with scanning generator (1), enlarged converter (3) and amplifier (4) respectively. The utility model provides a little material scanning electron microscopic system has the resolution ratio height, the depth of field is long, and the field of vision is wide, the image is rich in characteristics such as third dimension.

Collimating system among interference measuring apparatus

The utility model relates to a collimating system among interference measuring apparatus, by laser lamp -house (1), beam splitting Prism (2), coupled system (3), interfere chamber (4), collimating mirror (5), imaging lens (6) and CCD (7) constitute, set gradually laser lamp -house (1) according to the light path direction, beam splitting Prism (2), coupled system (3) and interference chamber (4), be provided with collimating mirror (5) and CCD (7) at beam splitting Prism (2) with laser lamp -house (1) lasing direction vertically direction. The utility model provides a demand of collimating system among interference measuring apparatus in order to satisfy interference measuring apparatus can the analysis verifies that optical system wavefront aberration to interference fringe's influence, can be used for the matched edge along the distortion and distortion influence to the interference pattern of the aberration of visual field through emulation.

Burnt fluorescing system of micro - copolymerization of micro -control

The utility model relates to a burnt fluorescing system of micro - copolymerization of micro -control mainly includes laser instrument (1), a plurality of slit, half first opposite semitransparent mirror (3), light filter (4), half anti - semitransparent mirror (5), camera (6) of second, microcobjective (7), sample platform (8), a plurality of speculum, detector (14) and computer terminal, a plurality of slits include first slit (2), second slit (9) and third slit (10), computer terminal (16) are connected with laser instrument (1). The utility model provides a burnt fluorescing system of micro - copolymerization of micro -control, through the setting of system, the photoluminescence of gained register for easy reference, assay through to peak position, half gao kuan etc. In the luminous register for easy reference can draw information such as material band gap, defect, impurity [energy] level and compound mechanism, provides fine analytical equipment for scientific research semiconductor ...

Preparation method of active carbon electrode material for super capacitor

Unhusked rice ash removal device for agricultural planting

The utility model discloses an unhusked rice ash removal device for agricultural planting. Bottom plate, four air cylinders are arranged on the outer wall of the top of the bottom plate. The same storage tank is arranged on the outer walls of the tops of the four air cylinders; a port plug is screwed at the discharging end of the storage tank; the four air cylinders are connected with a synchronous control system, fixing plates are arranged on the outer walls of the tops, located on the two sides of the storage tank, of the bottom plate, dust suction assemblies are arranged on the two fixing plates, each dust suction assembly comprises a dust collection box, a dust collector is arranged on the outer wall of the top of each dust collection box, and dust suction nozzles are arranged on the outer walls of the opposite sides, close to the top end, of the two fixing plates. Due to the arrangement of the dust collection assembly and the air cylinder, during dust removal, the air cylinder drives ...

Method for detecting soluble zinc salt in cosmetic by ultrasound centrifugal-ICP-OES

The invention relates to a method for detecting the content of soluble zinc salt in cosmetic, in particular to a method for detecting the content of soluble zinc salt in cosmetic by an ultrasound centrifugal-inductively coupled plasma atomic emission spectrometry detection technology, which comprises the following steps: extracting cosmetic samples through ultrasound centrifugal, introducing the sample solution into an inductively coupled plasma atomic emission spectrometer nebulizer to form aerosol, loading the aerosol into a high-temperature high-frequency plasma by argon, causing ionization, generating characteristic lines, detecting line intensity of zinc in the sample solution, wherein the intensity and content of zinc are directly proportional, correcting response value of zinc according to the specific value of an actual-measurement indium internal standard response value and a predicted indium internal standard response value, adopting a calibration curve method for quantitative ...

Traditional Chinese medicine composition for treating osteoporosis and preparation method thereof

The invention discloses a traditional Chinese medicine composition for treating osteoporosis. The traditional Chinese medicine composition is prepared from the following raw materials: angelica sinensis, wine-processed rhizoma chuanxiong, prepared rehmannia root, cortex acanthopanacis, cassia twig, salt-processed bark of eucommia, radix dipsaci, rhizoma bletillae, sand-scorch-processed drynaria rhizome, fossil fragments, pseudo-ginseng, radix astragali, dangshen, calcined native copper, pawpaw, herba epimedii, rhizoma dioscoreae hypoglaucae, ground beeltle, salt-processed semen cuscutae and salt-processed fructus psoraleae. The traditional Chinese medicine composition provided by the invention is capable of remarkably increasing the bone mineral density and relieving bone pain. The traditional Chinese medicine composition prepared from combination of the multiple components has a remarkable and definite curative effect on osteoporosis treatment and no obvious acute toxicity reaction, does ...

Production technique of shockproof polyester industrial filament yarn

The invention relates to a manufacturing technique of a shockproof polyester filament for industry, comprising: solidoid viscosifying, melt spinning, high temperature tension; heat setting, winding forming. Particularly, a viscosified polyester chip is adopted high POY in low temperature, super drawing in ultra-temperature and high power retraction in ultra-temperature via filature on a spinning, leading and rolling one-step combination machine; then macromolecule chain is regularly curled via cold treatment to make the rupture strength of the fiber reach to 6.8cN/dtex and make the elongation at break reach to 36%, so as to have the advantages of stronger bounce impact force, better toughness, good cushioning effect when getting external force. The invention is applicable to firenet, protective screening, safety belt, exposure suit and products which are prevented from exogenic action.

Parcel adds fever type drinking water boiler

The utility model provides a parcel adds fever type drinking water boiler, including heating connecting device and teapot, heating connecting device includes the chassis, the connection is at the parcel hot plate of chassis side, the parcel hot plate is connected through the pivot with the chassis side, top surface on the chassis is equipped with the heating and supports pressure connection projection, be equipped with in the bottom surface of teapot and be connected projection matched with and heat the compression joint shrinkage pool to pressing with heating, medial surface at the parcel hot plate is equipped with heating crimping inserted block, be equipped with on the lateral wall of teapot and heat the heating crimping recess that the crimping inserted block is connected, be equipped with the passageway of adding water in the parcel hot plate, at the top of the parcel hot plate tap that the passageway is linked together that is equipped with and adds water, be equipped with the rotation ...

Method for raising quality of protocorm of Tiepi stem of noble dendrobium cultivated in liquid through inductor of mycorrhizal fungi

Preparation method of thermoplastic polyurethane-polysiloxane block copolymer

The invention discloses a preparation method of a thermoplastic polyurethane-polysiloxane block copolymer alloy. The preparation method is characterized in that the thermoplastic polyurethane-polysiloxane block copolymer alloy is prepared by mixing polyurethane and polyurethane-polysiloxane block copolymer and performing melt extrusion on the mixture, wherein the polyurethane-polysiloxane block copolymer is prepared by the following steps: introducing bisfunctional carbon hydroxyl-terminated polysiloxane as soft block into polyurethane main chain, adding diisocyanate and chain extender, and allowing copolymerization reaction, wherein hydroxyl-terminated polysiloxane is intercalated as silicon segment into polymer main chain to obtain the polyurethane-polysiloxane block copolymer. Compared with the ordinary polyurethane material, the thermoplastic polyurethane-polysiloxane block copolymer alloy material prepared by the invention retains the characteristics of high strength and high wear ...

Composite food glue containing enteromorpha gel polysaccharide and preparation method thereof

The invention provides composite food glue containing enteromorpha gel polysaccharide and a preparation method thereof. In the preparation method, the composite food glue is prepared by using gel enteromorpha polysaccharide obtained from hot water digestion as a raw material and assisting with konjac glucomannan and carrageenan. The composite food glue comprises the components of 35-55 percent of enteromorpha polysaccharide, 30-40 percent of konjac glucomannan and 5-25 percent of carrageenan. The raw materials are mixed uniformly at room temperature and crushed to obtain the composite food glue containing the enteromorpha gel polysaccharide. The preparation method is simple and easy, has a low production cost, is expected to replace the carrageenan to a certain degree and can be conveniently used in various foods, and provides a new path for the development and the utilization of green alga.

Fermentation method for improving polyporus umbellatus mycelium volume of production and polyoses content with polyporus umbellatus concomitance bacterium

The invention discloses a method for fermenting and culturing mycelia of Polyporus umbellatus by using fungi liquid, wherein the fungi is Grifola sp. GS-1 separated from the cave of wild Polyporus umbellatus sclerotium and subjected to artificial domestication and selection. The GS-1 liquid fermentation product is added into a liquid fermentation culturing base of Polyporus umbellatus to achieve fermentation and culture of Polyporus umbellatus mycelia, thus improving the output of Polyporus umbellatus mycelia and improving polysaccharide content. The method has the advantages of high output of Polyporus umbellatus mycelia, high content of polysaccharide in Polyporus umbellatus mycelia, simple operation and low cost, and is suitable for large-scale industrial production.

Muscodor malipoensis with biocontrol effect

The invention discloses a muscodor fungus which has an effect of inhibiting a variety of plant pathogenic microorganisms and human pathogenic microorganisms and is muscodor malipoensis. Muscodor malipoensis can be used for biocontrol of the plant pathogenic microorganisms and the pathogenic microorganisms in a human living environment, and has development and utilization value.

Enteromorpha prolifera jelly and preparation method thereof

The invention provides enteromorpha prolifera jelly and a preparation method thereof, and the enteromorpha prolifera jelly comprises the following main components by weight percent: 0.35%-0.55% of enteromorpha prolifera extract, 15%-22% of white granulated sugar, 0.30%-0.40% of konjac gum, 0.05%-0.25% of carrageenan, 0.15%-0.30% of citric acid, 0.05%-0.10% of essence and water which is added till 100%. The preparation method comprises the following steps: mixing the white granulated sugar, the konjac gum and the carrageenan, adding water for soaking, heating till boiling, adding the enteromorpha prolifera extract under the boiling state, dissolving, and keeping the temperature for 15 minutes-20 minutes; filtering for removing impurities and particulate matters; and adding the citric acid and the essence, filling, sterilizing and finally getting the enteromorpha prolifera jelly. The enteromorpha prolifera jelly retains the characteristics of traditional jelly, is lubricating in mouth feel ...

Alternaria sp. fungi improving salvia miltiorrhiza output and total phenolic-acid content

A alternaria sp. fungi improving salvia miltiorrhiza output and total phenolic-acid content belongs to cladosporium sp. and has the preservation number of CGMCC No. 6380, and the name of the strain is 11775-42-Z1, and is 42# for short. When salvia miltiorrhiza is cultivated, 0.5-1.5 g of 42# fungal material is applied to the root of each salvia miltiorrhiza seedling, the fungal material and the salvia miltiorrhiza seedling are subjected to symbiosis cultivation for 4-6 months, and the 42# fungal material helps to improve the output of salvia miltiorrhiza at harvest time and the content of salvia miltiorrhiza total phenolic acids and salvianolic acid B. The technological method is simple and practicable and free of pollution, is applicable to artificial cultivation of salvia miltiorrhiza, is capable of effectively improving the output and the quality of the medicinal material, and has good application prospect.

Electric double-component coating blade coating and throwing coating integrated device

The invention discloses an electric double-component coating blade coating and throwing coating integrated device which comprises a rack, a handlebar, wheels, a driving motor, a battery and a control box, the driving motor, the battery and the control box are installed on the rack, the driving motor is connected with the wheels located at the bottom of the rack, and the control box is connected with the driving motor and the battery. An AB group material cylinder, a mixing cylinder, a coating scraping hopper, a double-glass-bead cylinder and a glass bead spreader are mounted on the rack; according to the device, the A group material cylinder, the B group material cylinder, the mixing cylinder and the coating scraping hopper are all provided with stirring devices, continuous and sufficient stirring of the two-component coating in the whole construction process is achieved, the initial setting phenomenon of the coating is not prone to occurring, and the stable curing effect of line drawing ...

Water temperature control device

The utility model relates to a water temperature control device for the temperature of control swimming pool water -logging, including heating pipe, cooling tube, water pump and control circuit, control circuit is connected with heating pipe, cooling tube and water pump electricity respectively for the switch and the output of controlled heating pipe, cooling tube, water pump, water temperature control device is suitable for and dipes the aquatic of swimming pool, and with for can dismantle the connection between the swimming pool. The utility model discloses an in the water intrusion to can dismantle with formation between the swimming pool and be connected, not only can conveniently heat or freeze when use, can follow the swimming pool in addition and dismantle when not using, conveniently carry and deposit.

Acoustic coupling cavity used for calibration of otoacoustic emission measuring instrument

The invention discloses an acoustic coupling cavity used for calibration of an otoacoustic emission measuring instrument. The acoustic coupling cavity comprises a base; a connector is fixed on the base; a coupling cavity body is arranged in the connector; a straight through hole is formed in the top wall of the coupling cavity body; a coupling plug is fixed in the straight through hole; small through holes are formed in the side wall of the coupling cavity body; through holes are axially formed in the coupling plug and the base. Therefore, coupling between the otoacoustic emission measuring instrument and a calibration device of the otoacoustic emission measuring instrument can be realized; a sound stimulation unit and a response measurement unit of the otoacoustic emission measuring instrument can be calibrated simultaneously; the design meets the international standard requirement IEC 60318-5:2006; the designed structure is felicitous, simple and universal; the sealing performance is ...

Device, system and method based on remote subscriber identity module (SIM) card data introduced by singlechip in real time

The invention discloses a device, a system and a method based on remote subscriber identity module (SIM) card data introduced by a singlechip in real time. The device comprises mobile phone modules, the singlechip used for converting and transmitting remote SIM card data and a local SIM card converting circuit, wherein the mobile phone modules are connected with the singlechip and the local SIM card converting circuit through a data port. The system comprises an SIM card centralized management center, a testing terminal host computer, a serial port, testing terminal main control software and a device used as a remote testing terminal in the system. The mobile phone modules are connected through a mobile network; the singlechip and the local SIM card converting circuit are connected with the testing terminal host computer through the serial port; the testing terminal host computer is connected with the SIM card centralized management center through a TCP/IP network; and the testing terminal ...

Method for preparing electronic product shell

The invention provides a preparation method of an electronic product casing, including forming a tin coating on matrix materials. The method of forming the tin coating on the matrix materials is a DC magnetic control sputtering coating method which includes imposing voltage on a magnetic control target to sputter and deposit target materials of the magnetic control target on the matrix materials under the sputtering condition. The target materials are tin. The sputtering condition results in that the thickness of the tin coating is not larger than 100nm. The preparation method of the electronic product coating provided by the invention uses the DC magnetic control sputtering coating method to form the tin coating on the matrix materials and control the sputtering condition to keep the thickness of the tin coating to be within 100nm. Therefore, the obtained casing is provided with certain transmittance and the light transmission decoration effect is achieved.

Guiding device capable of automatically adjusting gap and adjusting method

The invention relates to a guide device capable of automatically adjusting a gap and an adjusting method. The guide device comprises an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder are coaxially arranged; the inner wall of the outer cylinder is provided with at least one rack and at least one adjusting track which are arranged on different surfaces, and the rack and the adjusting track are arranged along the height direction of the outer cylinder; wherein the adjusting track comprises a first track and a second track, and the thickness of the first track is smaller than that of the second track; the at least one adjusting module is arranged at the top of the inner cylinder; the adjusting module comprises a gear, an adjusting bolt, a square nut, a screw, a base, a sliding seat and a moving element; the gear sleeves the head of the adjusting bolt, a screw portion of the adjusting bolt is in threaded connection with the square nut, a screw portion ...

Method, device and system for transmitting data by adopting retransmission and coding negotiation

The invention discloses a method, a device and a system for transmitting data by adopting retransmission and coding negotiation. The method comprises the steps of sending a request message for retransmission to a messaging device on a communication link for retransmitting a message when a received message is wrongly decoded, and sending a request message for coding negotiation to the messaging device when the retransmitting message received from the messaging device is wrongly decoded. The device comprises a retransmitting request module and a negotiation request module. The technical scheme of the invention realizes that data can be transmitted by adopting retransmission and coding negotiation between the messaging device and the receiving device, while the reliability of data transmission is ensured and the efficiency of data transmission is promoted.

Manufacturing method of antithermal shrink polyster high strength yarn

The present invention relates to a production method of anti-thermoshrinking polyester high-tenacity yarn. Said production method includes the following several steps: preparing polyester chip raw material, solid-phase condensation polymerization, extrusion by melting, cooling by cross air blasting, multi-stage hot roll drawing, high-temperature tensionless setting and winding-forming so as to obtain the invented anti-thermoshrinking polyester high-tenacity yarn whose tenacity is 6.5-7.2 cN/dtex, dry heat shrinkage rate is 0.2-1.0% and elongation percentage is 22-25%.

Preparation process of microparticle settling agent for detecting air pollution

The invention provides a preparation process of a microparticle settling agent for detecting air pollution. The preparation process of the microparticle settling agent for detecting air pollution comprises the following steps: carrying out ball milling, adding coupling agent modified kaolin, dissolving sodium dodecyl sulfate and sodium carboxymethyl cellulose, compounding, dissolving sodium borate, heating, mixing lauryl glucoside and the like, ventilating, adding chlorine dioxide, and standing for aging. Environment-friendly organic matters such as fatty alcohol-polyoxyethylene ether glucoside, lauryl glucoside and polyanionic cellulose are compounded, chlorine dioxide is added as a wetting agent, and due to the fact that the surface tension of a chlorine dioxide solution is small, the dust catching capacity of the prepared microparticle settling agent can be improved; chlorine dioxide is a green disinfectant, can be used as a wetting agent, and can also achieve disinfection and sterilization ...

Digital immunochromatographic test strip for semi-quantitative detection of aflatoxin B1 and preparation method thereof

The present invention belongs to the field of biological detection. Multi-line immunochromatographic test strip for semi-quantitative detection of aflatoxin Bcomprises a paperboard, wherein a water-absorbing pad, a detection pad, a gold-labeled pad and a sample pad are adhered sequentially on one surface of the paperboard from top to bottom, wherein each adjacent pads is overlapped and connected, the detection pad uses a nitrocellulose film as a backing pad, the nitrocellulose film is provided with a transverse control line, a test line I, a test line II and a test line III, wherein the control line is coated with a rabbit anti-mouse polyclonal antibody, and the test line I, test line II and test line III are coated with aflatoxin B-bovine serum albumin conjugate (AFB-BSA), respectively: and the gold-labeled pad is transversely coated with a nanogold-labeled anti-aflatoxin Bmonoclonal antibody. Said test strip is used for semi-quantitative detection of aflatoxin B, and is characterized by quick detection, simple procedure and high sensitivity. 1. A test strip for digital detection of aflatoxin Bcomprising:a backing;a sample pad,{'sub': '1', 'a marker-labeled pad coated with a marker-labeled antibody against aflatoxin B;'}{'sub': '1', 'a detection pad comprising a control line and a plurality of test lines, wherein the control line is coated with a secondary antibody against said marker-labeled antibody provided in said marker-labeled pad, and wherein said plurality of test lines are each coated with a different concentration of aflatoxin B-bovine serum albumin conjugate; and'}a water-absorbing pad;wherein all four pads are attached to one side of said backing with said water-absorbing pad on top, followed by said detection pad, said gold-labeled pad and said sample pad sequentially with said sample pad at the bottom, each pad in direct contact with its neighboring pad or pads.2. The test strip of claim 1 , wherein said backing comprises a paperboard:{'sub': '1', ' ...

QUANTUM DOT LIGHT-EMITTING LAYER, QUANTUM DOT LIGHT-EMITTING DEVICE AND PREPARING METHODS THEREFOR

The present disclosure relates to a quantum dot light-emitting layer, a quantum dot light-emitting device and preparing methods therefor and belongs to the field of liquid crystal display. The preparing method for a quantum dot light-emitting layer includes: placing a first halide AX and a second halide BXin a solvent; stirring and dispersing the reaction system formed by the first halide AX, the second halide BXand the solvent at a set temperature for a set time period; cooling the reaction system at a cooling rate of 0.1° C./24 h−1° C./24 h to generate an ABXsingle crystal thin film containing ABXquantum dots, and using the ABXsingle crystal thin film containing ABXquantum dots as the quantum dot light-emitting layer; wherein A includes one of Cs, CHNH and HC(NH); B includes one of Pb and Sn; and X includes one of Cl, Br and I. 1. A preparing method for a quantum dot light-emitting layer , comprising: placing a first halide AX and a second halide BXin a solvent;{'sub': '2', 'stirring and dispersing a reaction system formed by the first halide AX, the second halide BXand the solvent at a set temperature for a set time period; and'}{'sub': 4', '6', '3', '4', '6', '3, 'cooling the reaction system at a cooling rate of 0.1° C./24 h−1° C./24 h to generate an ABXsingle crystal thin film containing ABXquantum dots, and using the ABXsingle crystal thin film containing ABXquantum dots as the quantum dot light-emitting layer; and'}{'sup': +', '+', '+, 'sub': 3', '3', '2', '2, 'wherein A comprises one of Cs, CHNH and HC(NH);'}{'sup': 2+', '2+, 'B comprises one of Pb and Sn; and'}{'sup': −', '−', '−, 'X comprises one of Cl, Br and I.'}2. The preparing method for the quantum dot light-emitting layer according to claim 1 , wherein a molar ratio of the first halide AX to the second halide BXto the solvent is 3-6:1:3-6.3. The preparing method for the quantum dot light-emitting layer according to claim 1 , wherein the solvent comprises: an organic solvent and an additive with a ...

SYSTEM AND METHOD OF CONNECTING TWO DIFFERENT ENVIRONMENTS USING A HUB

A method is performed at a computing system for updating an operation setting of a virtual space in response to alerts. The computing system is communicatively connected to a head-mounted display wore by a user. The method includes: rendering an application in the virtual space in accordance with a current location of the user in the virtual space, the user's current location in the virtual space determined according to the head-mounted display's location in the physical space measured using a position tracking system; receiving an alert from a device that is communicatively connected to the computing system; generating and displaying an icon in the virtual space, the icon being uniquely associated with the alert; and in response to a predetermined action from the user, replacing the application in the virtual space with the VR content associated with the alert. 1. A method of displaying a VR content in a virtual space , the method comprising: ["rendering an application in the virtual space in accordance with a current location of the user in the virtual space, wherein the user's current location in the virtual space is determined according to the head-mounted display's location in the physical space measured using a position tracking system;", 'receiving an alert from a device that is communicatively connected to the computing system;', 'generating and displaying an icon in the virtual space, the icon being uniquely associated with the alert; and', 'in response to a predetermined action from the user, replacing the application in the virtual space with the VR content associated with the alert., 'at a computing system having one or more processors, memory for storing programs to be executed by the one or more processors, wherein the computing system is communicatively connected to a head-mounted display worn by a user2. The method according to claim 1 , wherein the device is a mobile phone that is communicatively connected to the computing system and the alert ...

INTERACTIVE CONTROL METHOD AND APPARATUS, STORAGE MEDIUM, AND ELECTRONIC DEVICE

This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In these method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request. 1. An interactive control method , comprising:recognizing, by circuitry of a holographic projection device, a touch operation performed on a touch panel, the holographic projection device being configured to display a holographic projection-based virtual character, the touch panel being disposed on the holographic projection device;generating, by the circuitry, an interaction request according to the recognized touch operation, the interaction request corresponding to an interaction with the holographic projection-based virtual character; andcontrolling, by the circuitry, the holographic projection-based virtual character to perform an interactive action associated with the interaction request.2. The method according to claim 1 , wherein the recognizing comprises:obtaining touch information that is generated based on the interaction between a touch point corresponding to the touch operation and the touch panel; andrecognizing the touch operation according to the touch information.3. The method according to claim 2 , wherein the recognizing comprises:determining, in a case that a quantity of swipes performed on the touch panel by the touch point is determined to be greater than a first threshold, that the touch operation is a caress ...

SYSTEM AND METHOD OF CUSTOMIZING A USER INTERFACE PANEL BASED ON USER'S PHYSICAL SIZES

A method is performed at a computing system for customizing a user interface panel of a virtual space based on user locations. The computing system is communicatively connected to a head-mounted display wore by a user. The method includes: generating a virtual space including a user interface panel, the user interface panel having a default location in the virtual space; rendering the virtual space in the head-mounted display; measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user; determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and updating the user interface panel's default location in the virtual space in accordance with the user's location in the virtual space. 1. A method of customizing a user interface panel of a virtual space based on user locations , the method comprising: generating a virtual space including a user interface panel, wherein the user interface panel has a default location in the virtual space;', 'rendering the virtual space in the head-mounted display;', "measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user;", "determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and", "updating the user interface panel's default location in the virtual space in accordance with the user's location in the virtual space."], 'at a computing system having one or more processors, memory for storing programs to be executed by the one or more processors, wherein the computing system is communicatively connected to a head-mounted display wore by a user2. The method according to claim 1 , wherein the operation of updating the user interface panel's default location in the virtual space in accordance with the user's location in the virtual space further comprises:measuring a spatial relationship ...

System and method of instantly previewing immersive content

System and method of instantly previewing immersive content

A method is performed at a computing system for rendering a content preview in a virtual space based on user locations. The computing system is communicatively connected to a head-mounted display wore by a user. The method includes: rendering a user interface panel in the virtual space, wherein the user interface panel includes multiple content posters, each having a unique location in the virtual space; measuring the head-mounted display's location in a physical space using a position tracking system adjacent the user; determining the user's location in the virtual space according to the head-mounted display's location in the physical space; and in accordance with a determination that the user's location and at least one of the multiple content posters' location in the virtual space satisfy a predefined condition, replacing the user interface panel with a content preview associated with the corresponding content poster in the virtual space.

Interactive control method and apparatus, storage medium, and electronic device

This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In these method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request.

System and method of instantly previewing immersive content

System and method of instantly previewing immersive content

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Barbecue grill

Barbecue grill

Barbecue grill

Method for detecting an okadaic acid based on a near-infrared photoelectric composite material

The present application proposes a method for detecting an okadaic acid based on a near-infrared photoelectric composite material, which includes the following steps: synthesizing NaYF4: Yb, Tm up-conversion nanoparticles (UCNPs) and a semiconductor material flower-like tungsten oxide (WO3) by a simple high-temperature solvothermal method; coupling the UCNPs with an okadaic acid monoclonal antibody through a classic amidation reaction to construct a competitive near-infrared photoelectrochemical immunosorbent assay (cNIR-PECIA) for okadaic acid detection. In addition, the present application employs a screen-printed carbon electrode (SPE) as the working electrode, and thus only requires a small amount of electrolytes, which is low-cost and maintenance-free.

Method for detecting an okadaic acid based on a near-infrared photoelectric composite material

The present application proposes a method for detecting an okadaic acid based on a near-infrared photoelectric composite material, which includes the following steps: synthesizing NaYF 4 : Yb, Tm up-conversion nanoparticles (UCNPs) and a semiconductor material flower-like tungsten oxide (WO 3 ) by a simple high-temperature solvothermal method; coupling the UCNPs with an okadaic acid monoclonal antibody through a classic amidation reaction to construct a competitive near-infrared photoelectrochemical immunosorbent assay (cNIR-PECIA) for okadaic acid detection. In addition, the present application employs a screen-printed carbon electrode (SPE) as the working electrode, and thus only requires a small amount of electrolytes, which is low-cost and maintenance-free.

Barbecue grill

Barbecue grill

Interaction with a projected virtual character using touch panel

This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In this method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request.

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