Reversal heat pump type rotor compressor

The invention relates to a reversal heat pump type rotor compressor which is characterized in that automatically sealable holes are formed in the lower parts of a left gas-liquid separator and a right gas-liquid separator respectively; floating ball valves are arranged on the holes and are communicated with the inside of a shell through an oil return pipe; a left step hole and a right step hole are formed in an air cylinder respectively and are communicated with the inside of the shell; a left exhaust valve and a right exhaust valve are mounted in the left step hole and the right step hole; a gas suction inlet and a gas outlet in the edge of the air cylinder are connected with a left gas suction pipe and a right gas suction pipe respectively; and the left gas suction pipe and the right gas suction pipe are communicated with the left gas-liquid separator and the right gas-liquid separator respectively. The rotor compressor is used in a heat pump type household air conditioner and does not ...

Equipment and process for producing battery-grade dimethyl carbonate by coupling vacuum distillation with melt crystallization

The invention provides equipment for producing battery-grade dimethyl carbonate by coupling vacuum distillation and melt crystallization, which comprises a vacuum distillation tower, a condenser is arranged at the top of the vacuum distillation tower, a reboiler is arranged at the bottom of the vacuum distillation tower, the side of the vacuum distillation tower is firstly connected with a side extraction buffer tank through a pipeline, and the side extraction buffer tank is connected with an inlet of a crystallizer through a pipeline. And an outlet of the crystallizer is connected with a product tank through a pipeline. The invention also provides a process for producing the battery-grade dimethyl carbonate through vacuum distillation coupled with melt crystallization, and the process comprises vacuum distillation and melt crystallization, and the invention provides the equipment for producing the battery-grade dimethyl carbonate through vacuum distillation coupled with melt crystallization ...

Explanatable compressed sensing image reconstruction method based on boundary constraint

The invention discloses an interpretable compressed sensing image reconstruction method based on boundary constraint, belongs to the field of image quality enhancement, solves the problem of compressed sensing image restoration, and comprises the following steps: firstly, designing a compressed sensing reconstruction model with boundary constraint, and converting the compressed sensing reconstruction problem based on boundary constraint into two sub-problems; the two sub-problems are solved in an iterative optimization mode; secondly, expanding an iterative optimization process into an edge-guided interpretable image compressed sensing reconstruction network, and respectively optimizing edge features, intermediate variable features and reconstruction features of the image by using a network edge sensing feature extraction module, an edge-guided intermediate variable updating module and an intermediate variable guided image reconstruction module; finally, the feature dependence of EGINet ...

Signal transmission line for display

The invention relates to the transmission of signals, in particular to a cable for connecting a PC (Personal Computer) host with RGB (Red, Green, Blue) signal wires of a display, a monitor and other display devices. the cable comprises four core wires coated with insulating layers and five power lines and is characterized in that each core line coated with the insulating layer is coated with an inner shielding layer after being combined with a grounding wire, the inner shielding layer is made of single-sided aluminum foil Mylar, the four core wires coated with the inner shielding layer, the grounding wire and the five power lines form a wire harness which is coated with an aluminum foil and conductive metal wire braid layer, and a jacket is arranged outside the braid layer. The invention has the advantages of convenience for operation, simple structure, high production efficiency, more stability for signal transmission, high speed for signal transmission, good quality for signal transmission ...

Mixed multilingual voice interaction method and device and electronic equipment

The invention discloses a mixed multilingual voice interaction method, a mixed multilingual voice interaction device and electronic equipment, and the main conception of the invention lies in that received mixed multilingual voice audio is input into a language segmentation model to obtain audio clips corresponding to different languages, and then each language audio clip is sent into a corresponding voice recognition model. The method comprises the following steps: obtaining a corresponding transcription result, inputting the recognition result of each speech recognition model as an input source into an intention understanding model to obtain a target intention, and finally analyzing the target intention according to a preset service demand and executing a corresponding interaction operation. According to the method, specific problems in multi-language mixed recognition and interaction scenes can be effectively solved, the interaction intention understanding accuracy is improved, meanwhile ...

Milling machine sample mold processing

The utility model provides a milling machine sample mold processing, belongs to milling machine mold processing technical field for process the tensile sample. Its technical scheme is: sample mold processing main part is rectangular flat plate, and there is sample fixed stop on upper portion, and there is the rectangle locating piece lower part, and two tight bolts of specimen holder are worn respectively in the round hole at sample mold processing main part both ends, and two specimen holders sticis the board and are the rectangle, and open at the middle part has the round hole, and the suit is on the screw rod of two tight bolts of specimen holder respectively, and two tight supporting shoes of specimen holder are cylindrical, are located two specimen holders respectively and sticis between board and the sample mold processing main part face. The utility model discloses an inferior the sample can processed, the form tolerance and the dimensional tolerance of sample completely unify, have ...

Medicine for treating hemicrania

Novel technology for separating and refining positron medicine of <11>C-sodium acetate

The invention relates to a novel technology for separating and refining <11>C-sodium acetate. The technology comprises the following steps: acidizing a reaction product of CH3MgCl and <11>CO2 with a proper amount of acid, removing <11>C of a by-product Na2<11>CO3 in the form of <11>CO2 gas, then neutralizing with a proper amount of NaOH or alkali resin to form a neutral solution, enabling the formed solution to pass through an acid ion conventional exchange column and an alkali ion conventional exchange column which are connected in series, wherein Mg<2+> and Na<+> ions are removed in an acidion exchange column, and CH3<11>COO<-> and Cl<-> are absorbed on the column in an alkali ion exchange column; eluting with 0.9% physiological saline or a buffer solution thereof, then neutralizing andfiltering by a filter membrane to obtain a solution which is suitable for PET/CT development.

Apparatus and method for optimizing startup of embedded system

A method for startup of an embedded system includes: determining whether a current pre-loaded class is an inner class, before pre-loaded classes required for starting an embedded system are loaded in parallel using a plurality of threads; if so, then parsing the current pre-loaded class for recognizing a host class hosting the current pre-loaded class, and determining a thread for loading the host class; and loading the current pre-loaded class using the thread after loading the host class.

Steel band rust cleaning device of polyethylene drain pipe

The utility model discloses a steel band rust cleaning device of polyethylene drain pipe, including cleaning roller, spray pipe, driving roller, support, the spray pipe is close to cleaning roller, and vertical direction sets up the guide way on the support of cleaning roller both sides, sets up upper support seat and bottom pivot in the guide way, sets up compression spring between upper support seat and bottom pivot, and the cleaning roller's of top pivot is assembled in the upper support seat, and the cleaning roller's of below pivot is assembled in bottom pivot the upper end of guide way sets up the screw hole, and at threaded hole assembly screw rod, the lower extreme and the upper support seated connection of screw rod touch, the upper end extended support surface of screw rod and the handle that the hookup is used for rotating the screw rod. Turning handle can adjust distance between upper support seat and the bottom pivot, on the messenger cleaning roller and lower cleaning roller ...

治疗偏头痛的药物

A Chinese medicine for treating hemicrania is prepared from paniculate swallow wort root, dahurian angelica root and notopterygium root.

Controlling means and system based on terminal bluetooth is used

The utility model discloses a controlling means and system based on terminal bluetooth is used. The device includes: receiving circuit for receive the control command that control terminal issued or transmitted through the bluetooth signal, wherein, control terminal passes through mobile communication network and communicates by letter mutually with the high in the clouds server, and control terminal passes through high in the clouds or directness and other control terminal and communicates by letter, control command's source includes high in the clouds server, local control terminal or other control terminal, the treatment circuit for read the control command of bluetooth signal form, detect the location State and the running condition of motor, motor -drive circuit for the execution control instruction is operateed according to the control command control motor, transmitting circuit for send the running condition or the location State of motor for control terminal. This device and system ...

Preparation method of oil-absorption polyurethane foam

The invention discloses a preparation method of an oil-absorption polyurethane foam, belonging to the technical field of governing water oil pollution and recycling oils. The preparation method comprises the following steps: firstly, preparing a polyurethane flexible foam by utilizing a foaming technology, taking the polyurethane flexible foam as a substrate, weighing a certain volume of organic coating liquid; then, carrying out immersion treatment onto the polyurethane flexible foam in the organic coating liquid under a certain condition, carrying out centrifugal treatment after getting out the polyurethane flexible foam; and finally, drying products at a temperature of 70 DEG C-80 DEG C for 10 minutes-60 minutes to prepare a novel material which has high oil-absorption multiplying power and low water-absorption multiplying power, and can be recycled. The novel oil-absorption foam has the following main advantages of being high in oil-absorption multiplying power, low in water-absorption ...

Operation method of vegetable raw material enzyme deactivation device for pickling pickles

The invention relates to an operation method of a vegetable raw material de-enzyming device for pickling pickles, which comprises a steam bin containing hot water in the middle, a drain pipe arranged at the bottom of the steam bin and used for draining water, a control valve mounted on the drain pipe, and a water inlet pipe arranged on one side of the steam bin along the inner wall, and further comprises a bracket, a walking mechanism, a winch, a traction rope and a hopper, supports are arranged on the two sides of the steam bin, two walking rails are arranged at the top ends of the supports, two walking mechanisms are arranged on the walking rails, winches are installed at the bottom ends of the walking mechanisms, and hoppers are connected to the bottom ends of the winches in a hanging mode through traction ropes. The device is novel in structure and ingenious in conception, after the right hopper is fished out, the left hopper is filled with raw bean sprouts, the left hopper is put into ...

Feed additive with microbial fermentation product and preparation process thereof

The invention relates to the technical field of feed additives, in particular to a feed additive with microbial fermentation products and a preparation process thereof, and the feed additive comprises the following components in parts by weight: 1-3 parts of vitamins, 3-5 parts of mycelia, 0.4-0.7 part of pyruvic acid and 0.1-0.3 part of sodium sulfide. The efficient, safe and sustainable feed additive can be obtained through microbial fermentation, the breeding benefit is improved, the breeding cost is reduced, the comprehensive effects of amino acid, cellulase and protease in the feed additive can be achieved at the same time through mycelia, and cost superposition caused by multiple substances is reduced.

Indoor positioning system and method

The invention relates to an indoor positioning system and method. The system comprises a number of beacons which are arranged indoors, acquire a hotspot exploring data packet sent by a mobile device, and determine identity information and signal intensity information corresponding to the mobile device, and a server which is connected with a number of beacons, receives the identity information and the signal intensity information corresponding to the mobile device, and determines the coordinate information of the mobile device according to the position information of the beacons. The identity information and the signal intensity information are corresponding to the mobile device and are sent by the beacons. According to the invention, the wireless hotspot exploring data packet sent by WI-FI of the mobile device is used; through the identity information and the signal intensity information in the wireless hotspot exploring data packet, the coordinate information of the mobile device is acquired ...

Benzofuran [3, 2-d] pyrimidine-2-amine compound as well as preparation method and application thereof

The invention belongs to the field of chemical pesticides, and relates to synthesis of benzofuran [3, 2-d] pyrimidine-2-amine compounds, in particular to a benzofuran [3, 2-d] pyrimidine-2-amine compound as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing and stirring a 2-styryl-3-sulfonamide benzofuran compound, alkali and hydrofluoride in a solvent, and then adding an N-aryl-N-cyano p-toluene sulfonamide compound to carry out a synthetic reaction, thereby obtaining the benzofuran [3, 2-d] pyrimidine-2-amine compound. Compared with a traditional synthesis method, the method has the advantages that raw materials are easy to prepare, the highest yield can reach 99%, reaction conditions are mild, operation is easy and the like, and it is found through insecticidal activity screening that the synthesized benzofuran [3, 2-d] pyrimidine-2-amine compound has good insecticidal activity and can be used for preparing the benzofuran ...

Battery grade-dimethyl carbonate, ethyl methyl carbonate and diethyl carbonate co-production equipment and process

The invention relates to the technical field of lithium battery carbonic ester electrolyte, and provides battery grade-dimethyl carbonate, ethyl methyl carbonate and diethyl carbonate co-production equipment, which comprises a battery grade dimethyl carbonate refining unit, a ethyl methyl carbonate and diethyl carbonate reaction unit, a dimethyl carbonate and ethyl methyl carbonate separation refining unit and an azeotrope separation unit, the ethyl methyl carbonate and diethyl carbonate reaction unit is respectively connected with the battery-grade dimethyl carbonate refining unit, the dimethyl carbonate and ethyl methyl carbonate separation refining unit and the azeotrope separation unit through pipelines. The invention also provides a battery grade dimethyl carbonate, ethyl methyl carbonate and diethyl carbonate co-production process adopting the co-production equipment. The method is simple in process, high in recovery rate and low in energy consumption, and co-production of three lithium ...

New method for recycling polyethylene product

The invention discloses a new method for recycling a polyethylene product. The new method comprises the following operation steps: crushing polyethylene, and then placing polyethylene into a water pool, wherein a water friction extrusion flushing machine is arranged in the water pool; driving a material to enter into a material cleaning pool by using rolling motors, and further flushing and cleaning a fragment, wherein one rolling motor is arranged in the material cleaning pool at an interval of 3 meters; spin-drying the cleaned polyethylene fragment, or directly drying in the sun on a sunny day; granulating the dried polyethylene fragment by using a special extruder, setting the temperature of a feed opening to be lower than 170-190 DEG C, medium extruder temperature to be 210-230 DEG C and mould orifice temperature to be 210 DEG C, and filtering by using a 80-mesh filter screen; dicing in cold water, then spreading, standing for 30-50 minutes, and then bagging and sealing. A polyethylene ...

Bundled flame-retardant longitudinally-watertight deep-sea cable and manufacturing method thereof

The invention discloses a bundled flame-retardant longitudinally-watertight deep-sea cable and a manufacturing method of the bundled flame-retardant longitudinally-watertight deep-sea cable. The bundled flame-retardant longitudinally-watertight deep-sea cable and the manufacturing method of the bundled flame-retardant longitudinally-watertight deep-sea cable are characterized in that seven or more tinned copper wires are twisted to form a conductor; gaps of single parts of the conductor are densely filled with heat vulcanization type liquid ethylene propylene rubber sealing materials, and pressing wrapping is carried out on an ethylene propylene rubber insulating layer to form insulating cores; two or more insulating cores are twisted to form cable cores, gaps of the insulating cores are filled with heat vulcanization type liquid chloroprene rubber sealing materials, and pressing wrapping is carried out on a high-flame-retardant chloroprene rubber inner protection sleeve; an armor formed ...

Quick judging method for singular configuration of six-degree-of-freedom mechanical arm

The invention belongs to the field of judgment of singular configurations of mechanical arms, in particular relates to a quick judging method for a singular configuration of a six-degree-of-freedom mechanical arm. The method comprises the steps of: reading present angle values of six joints from an angle encoder of the six-degree-of-freedom mechanical arm; judging if the angles of the six joints do not exceed respective actual movement ranges; judging the angle of the third joint; judging the angle of the second joint; and judging the angle of the fifth joint. The method applies a plane geometry method to the judgment of the singular configuration of the mechanical arm. The method theoretically has no errors to guarantee the judgment precision of the singular configuration of the six-degree-of-freedom mechanical arm; and the judgment process of the method is simpler compared with the calculation of a singular value of a jacobian matrix so as to guarantee the judgment speed of the singular ...

Smart machine encryption device

The utility model discloses a smart machine encryption device, the APP who defines every mobile terminal have only discernment number, and only discernment of mobile terminal's IMEI number and APP number is corresponding relation one to one on the backstage, the sole user id of definition equipment identification UID and individual recognition code PIN, the device includes: process key forming circuit for get random number and current time as the process key, the encrypted circuit is used for encrypting through the des circuit according to UID and PIN the process key forms the ciphertext and sends for the terminal, application circuit, be used for with the ciphertext is applied to communication and is shaken hands and information transmission. This disclosed device and equipment have the relation of one -to -one based on every mobile terminal APP and each mobile terminal to can encrypt transmitting data, can strengthen information transmission's security when realizing automatic remote ...

Method for optimizing production target of ethylene cracking furnace through multi-target particle swarm optimization algorithm

The invention discloses a method for optimizing a production target of an ethylene cracking furnace through a multi-target particle swarm optimization algorithm, and the method comprises the steps: updating the positions of particles through quantum behaviors, thereby reducing the possibility that the algorithm falls into a local optimal solution, and improving the convergence speed of the algorithm; and then, in order to prevent the algorithm from missing some optimal solutions due to too fast convergence speed, a search strategy of dynamic switching between global search and local search is introduced, and the algorithm distributivity is further improved. And then the algorithm is verified by using a standard test function, so that the production target of the ethylene cracking furnace is optimized, and the problem of inaccuracy of optimization of a traditional multi-target optimization algorithm is solved. The method effectively optimizes the ethylene yield and propylene yield targets ...

Indoor beacon management dispensing system and method

The invention relates to an indoor beacon management dispensing system and method. The system comprises a number of beacons which are arranged indoors, are used for acquiring a hotspot exploring data packet sent by a mobile device, and are divided into a number of regions, base stations which are arranged corresponding to the divided regions of the beacons, are in communication connection with the beacons in corresponding regions, and send a management dispensing instruction to the beacons in corresponding regions, and a server which is connected with a number of beacons and base stations, and receive the hotspot exploring data packet acquired by the beacons. The base stations receive feedback information which match the management dispensing instruction and are sent by the beacons. Summary information is formed and reported to the server. According to the invention, the base stations are used to manage the beacons; the beacons are divided into a number of regions; and a base station carries ...

Traditional Chinese medicine composition for ascending subsidence, removing blood stasis and dissolving turbidity as well as preparation method and application of traditional Chinese medicine composition

The invention belongs to the technical field of heart failure medicines, and particularly relates to a traditional Chinese medicine composition for ascending sinking, removing blood stasis and dissolving turbidity as well as a preparation method and application thereof. The traditional Chinese medicine composition comprises raw astragalus membranaceus, codonopsis pilosula, vinegar-processed curcuma zedoary, radix paeoniae rubra, cassia twig, allium macrostemon, trichosanthes kirilowii maxim, rhizoma pinelliae preparata, semen lepidii, radix bupleuri, rhizoma cimicifugae, rhizoma anemarrhenae and honey-fried licorice root. The traditional Chinese medicine composition has the effects of ascending collapse, removing blood stasis and dissolving turbidity, not only can tonify qi to ascend collapse, promote blood circulation to remove meridian obstruction, but also can reduce phlegm and resolve depression, so that the atmosphere is inflated, the collapse of qi is lifted, chest yang is spread, ...

Complex-shaped objective genetic path planning method based on kinematics

The invention provides a complex-shaped objective genetic path planning method based on kinematics. The method comprises the following steps that (1) a path is encoded by the adoption of a three-dimensional position and attitude method; (2) an initial population is generated; (3) genetic manipulation is performed on the initial population; (4) the path is decoded by the adoption of a three-stage process, and a fitness function is designed; (5) after iteration assessment, genetic manipulation is performed on the current-generation population path to generate the next population; patched genes in the step (4) in the iteration are added into the next-generation population, which is repeatedly performed until the function value of the feasible fitness function of the obtained path does not change any more, then the iteration is over, and the optimal path solution is obtained. Consideration is given to the irregular shape of a robot and kinematical constraints, a gene patching strategy and a ...

Movable asphalt cold regeneration cement gravel mixing building

The invention discloses a movable asphalt cold regeneration cement gravel mixing building, which comprises a charging device capable of being loaded on a transport vehicle and consisting of a milling material charging belt, a milling material charging funnel, a new aggregate charging belt and a new aggregate charging funnel, and also comprises an asphalt cold regeneration cement gravel mixing device arranged on a stander capable of being lifted on a flat truck, wherein the asphalt cold regeneration cement gravel mixing device consists of a lifting hook arranged on the stander, a control cabinet and a milling material weighing belt, a new aggregate weighing belt, a mineral powder metering auger, a cement metering auger electrically connected with the control cabinet, and a milling materialscreening net, a milling material storage bin, a mineral powder bin, a cement bin, a water tank, an emulsified asphalt bin, a new aggregate bin, an asphalt pump, a water pump, an upper mixing boiler,a lower ...

Steel band of polyethylene drain pipe dust collector that flattens

The utility model discloses a steel band of polyethylene drain pipe dust collector that flattens, the connector comprises an upper support and a lower support, the order sets up cleaning roller on the upper bracket, go up compression roller A, go up compression roller B, the order sets up cleaning roller down on the lower carriage, lower compression roller A, lower compression roller B, lower compression roller C, last compression roller A lies in between lower compression roller A and the lower compression roller B, last compression roller B lies in between lower compression roller B and the lower compression roller C, the lower extreme of going up compression roller A is crisscross with lower compression roller A and lower compression roller B's upper end, the lower extreme of going up compression roller B is crisscross with lower compression roller B and lower compression roller C's upper end, go up the arm -tie and pass through the bolt hookup with lower arm -tie, still set up compression ...

Ionic migration spectrum-based method for performing aided inspection on isocarbophos, moncrotophos and/or phosphamidon in cowpea

The invention discloses an ionic migration spectrum-based method for performing aided inspection on isocarbophos, moncrotophos and/or phosphamidon in cowpea. The method comprises the following steps: detecting a cowpea sample to be inspected in an ion migration spectrum instrument to obtain an ion migration spectrogram of the cowpea sample to be inspected; and if characteristic peaks of isocarbophos, moncrotophos and/or phosphamidon exist in the ion migration spectrogram of the cowpea sample to be inspected, selecting the sample to be inspected as a candidate of an isocarbophos, moncrotophos and/or phosphamidon-containing sample, wherein the migration rate of the characteristic peak of the isocarbophos is K1, or K1 and K2, K1 is a value ranging from 1.56cm<2>V<-1>s<-1>-1.66cm<2>V<-1>s<-1>, K2 is a value ranging from 1.36cm<2>V<-1>s<-1>-1.47cm<2>V<-1>s<-1>, the migration rate of the characteristic peak of the moncrotophos is K3, K3 is a value ranging from 1.48cm<2>V<-1>s<-1>-1.55cm<2>V<- ...

Distributed electric hydrogen energy storage participation demand side response discharge bidding strategy optimization method

The embodiment of the invention provides a distributed electric hydrogen energy storage participation demand side response discharge bidding strategy optimization method. The method comprises the following steps: acquiring data of the electro-hydrogen energy storage facility participating in response to discharge bidding at a demand side, and performing normalization processing; according to the expected profit of the electric hydrogen energy storage facility participating in the demand side response bidding at the next moment in the fixed time range, calculating an influence factor of the electric hydrogen energy storage facility discharge bidding strategy quotation; calculating an influence factor of the demand side electric energy demand on the electric hydrogen energy storage facility discharge bidding strategy quotation; and calculating a quoted price prediction value and an electric quantity prediction value of the electric hydrogen energy storage facility participating in demand ...

Application of metabolic marker alone or in combination in diagnosis and treatment of chronic heart failure

The invention discloses application of metabolic markers alone or in combination in diagnosis and treatment of chronic heart failure. Based on a post-myocardial infarction heart failure model and a post-operation lead electrocardiogram, the ST segment of a modeling rat is observed to be obviously raised, after 7 days, cardiac function measurement finds that the left ventricular ejection fraction of the modeling rat is reduced to 60% or below, and all the results show that rat heart failure modeling succeeds. Through metabonomics detection, 22 common differential metabolites of an SV-Model group and a Model-Sham group are screened out, comprehensive analysis is carried out according to P value and a fold change, five of the metabolites are selected for further comparison, and it is found that compared with the Model group, the five common differential metabolites show the same rising and falling trend in the Sham group and the SV group, and compared with the Model group, the five common ...

Linear projection based convex-polyhedron collision detection method

The invention relates to a linear projection based convex-polyhedron collision detection method. The convex-polyhedron collision detection method includes the steps of 1), inputting two convex-polyhedron vertex sets; 2), inputting vertex indexes of each surface of two convex polyhedrons; 3), detecting whether the two convex polyhedrons are separated or not by the aid of the center-line orthographic projection separation detection method, if yes, moving to step 10), and if no, entering step 4); 4), calculating surface friction values of the two convex polyhedrons; 5), constructing an opposite-surface set according to the descending principle of the surface friction values; 6), taking out edges where opposite surfaces concentrate, constructing projection separation line clusters, wherein referring the projection separation line clusters to lambada, namely K=0; 7), if k=lambada, then moving to the step 10), and if not, allowing k=k+1, and projecting the convex polyhedrons on coordinate planes ...

Advertisement pushing system based on position service and method

The invention relates to an advertisement pushing system. The advertisement pushing system comprises a number of beacons which are arranged indoors and acquire a hotspot exploring data packet of a mobile device, and a server which is connected with a number of beacons. The server receives the hotspot exploring data packet sent by the beacons, judges the positioning mode of the mobile device, chooses a pushed advertisement according to the positioning mode combined with back-end large data analysis, sends a pushing instruction to the beacons, and transmits the chosen pushed advertisement to the mobile device through the beacons. The positioning mode and back-end large data analysis are combined to choose the pushed advertisement. A pushed target is determined through the positioning mode. According to the position of the pushed target, the advertisement is chosen. Through back-end large data analysis, the behavior of a user of the mobile device is analyzed, and the advertisement matching ...

Positron isotope label of folic acid ramification and application thereof

The invention discloses a positron isotope label of a folic acid ramification and application thereof. The preparation method of the positron isotope label comprises the following steps that the folic acid ramification and an NOTA molecule with dual-function chelation are connected to generate a radioactive label precursor; then the radioactive label precursor is subjected to positron isotope labeling so as to obtain the positron isotope labeled folic acid ramification. The positron isotope label of the folic acid ramification, which is disclosed by the invention, can be applied to preparing a PET/CT (Polyethylene Terephthalate/Captive Test) molecular probe or preparing a drug for treating tumor, provides a new idea for the synthesis of a clinical PET/CT molecular probe and has the advantages that raw materials are easily available, operation is easy and convenient and the positron isotope label has high labeling rate and product purity.

Liquid antirusting agent used in railway vehicle water sandblasting antirusting process as well as preparation method and application thereof

The invention discloses liquid antirusting agent used in a railway vehicle water sandblasting antirusting process as well as a preparation method and an application thereof. The liquid antirusting agent comprises the following components by weight percent: 8-10% of main film-forming agent, 3-5% of alkaline corrosion inhibitor, 5-10% of antirusting agent, 1-2% of accelerating agent, 0.5-1% of surface active agent and the balance water, wherein the main film-forming agent is tripolyphosphate, the alkaline corrosion inhibitor is oil rare earth sulfonate, the antirusting agent is organic amine and the accelerating agent is calcined soda. In the preparation process, each component is evenly mixed with water according to the ratio. When in use, the liquid antirusting agent is diluted with water at the ratio of (1:2)-(1:3) and is used for spraying the surface of railway vehicles subject to water sandblasting antirusting; or the liquid antirusting agent is added to the circulating water used in ...

Lung cancer whole body detection method based on PET/CT image and related device

The invention discloses a PET/CT image-based lung cancer whole body detection method and a related device. The method comprises the following steps: acquiring a PET image and a CT image, inputting the PET image and the CT image into a pre-trained lesion detection model, and determining a lesion area through the lesion detection model. According to the embodiment of the invention, the two modals of the PET/CT image are utilized and fused, and the two modal images are detected through the focus detection model obtained by training based on the focus CT image layer, the CT image, the focus PET image layer and the PET image, so that a tumor area and a metastatic focus area thereof can be quickly and accurately positioned, and the accuracy of tumor detection is improved.

Digital access transmission line for high-end display devices

The invention relates to digital signal transmission, in particular to a DVI digital access transmission line suitable for high-end display devices such as LCD TVs, DLP large screen display, high-end 3-DLP projectors and the like. The digital access transmission line comprises four pairs of signal wires, four ground wires, five power wires, an external shielding layer and a jacket layer and is characterized in that each pair of signal wires are provided with a ground wire and packed by a single sided spread mela to form the internal shielding layer which is provided with a jacket layer and composed of a aluminium foil and a conductive wire braid layer. In the invention, as the above-mentioned structure is adopted, DVI rise time is greatly shortened from 360S to 265S and the invention has the advantages of low cost, higher efficiency, high tensile strength, long service life, rapid signal transmission speed, more stable signal transmission and high quality of transmission signals.

Ginseng-pilose antler beer and its producing technology

The present invention belongs to the field of brewage industry, and it aims at solving the problem of available beer, which is cold, spleen and stomach damageable and not suitable for drinking in winter. It features that pilose antler in 0.1% and ginseng in 0.4-0.6% are added into beer during brewage, so that the beer contains gensenoside, estradiol and other components. It has relatively high alcohol content and heat value, has tonic effect and may be used as ideal drink in winter.

APPARATUS AND METHOD FOR OPTIMIZING STARTUP OF EMBEDDED SYSTEM

The disclosure provides an apparatus and method for optimizing startup of an embedded system, the method includes: determining whether a current pre-loaded class is an inner class, before pre-loaded classes required for starting an embedded system are loaded in parallel using a plurality of threads; if so, then parsing the current pre-loaded class for recognizing a host class hosting the current pre-loaded class, and determining a thread for loading the host class; and loading the current pre-loaded class using the thread after loading the host class.

Operation method of bagged pickled vegetable preparation production line

The invention relates to the field of pickle production equipment, and discloses an operation method of a bagged pickle preparation production line, the bagged pickle preparation production line comprises a sterilization mechanism, an air drying mechanism and a rotating plate, the sterilization mechanism is located at the top of the air drying mechanism, and the sterilization mechanism and the air drying mechanism are communicated through the rotating plate; and the sterilization mechanism comprises a feeding port, a sterilization box, sterilization conveying belts, a supporting plate and a sterilization lamp, the feeding port is formed in the top of one side of the sterilization box, and the two sterilization conveying belts are arranged in the sterilization box. According to the device, firstly, under transportation of the degerming conveying belts, packaged pickled vegetables move in the degerming box, due to the fact that the number of the degerming conveying belts is two, when the ...

Ultraviolet radiation intensity indicating bracelet

The invention relates to an ultraviolet radiation intensity indicating bracelet. The ultraviolet radiation intensity indicating bracelet comprises a bracelet rope, a functional string bead and a plurality of ornament string beads, wherein the functional string bead and the ornament string beads are threaded on the bracelet rope; a buckle is arranged at one end of the bracelet rope; a control module and an ultraviolet sensor are arranged in the functional string bead; the control module is connected with a battery, a display module and the ultraviolet sensor respectively. The ultraviolet radiation intensity indicating bracelet is capable of improving the ornament effect, convenient to carry and also capable of meeting the requirements of concerns on ultraviolet indication indexes of modern people; through the ultraviolet radiation intensity indicating bracelet, people can conveniently take corresponding protective measures according to the ultraviolet indexes.

Quick and simple method for solving inverse kinematics of six-degree-of-freedom mechanical arm

The invention relates to the field of inverse kinematics of mechanical arms, in particular to a quick and simple method for solving inverse kinematics of a six-degree-of-freedom mechanical arm. A coordinate of an intersection of three rear joint shafts is determined according to the position and a posture matrix of the tail end of the mechanical arm; angles which three front joint shafts rotate by are solved in a geometrical method; the angles which the three rear joint shafts rotate by are solved according to an Euler angle transformation matrix. The concept put forward in the method can be applied to six-degree-of-freedom mechanical arms which have different geometrical structures but belong to the same type. According to the method, the solving process of the inverse kinematics of the mechanical arm is greatly simplified, the solving speed of the inverse kinematics is improved, and requirements for quickness and accuracy in the real-time control of the industrial mechanism arm can be ...