481results about How to "Valid entry" patented technology

The invention discloses a sustained-release gel-breaking type fracturing propping agent for fracturing an oilfield. The propping agent sequentially comprises a base material, a medicament carrying layer and a sustained release layer from inside to outside, wherein the medicament carrying layer comprises a gel breaking agent and a filling agent, and the sustained release layer comprises a film forming material and a pore forming agent. The invention further provides a preparation method of the sustained-release gel-breaking type fracturing propping agent. In an actual application, the sustained-release gel-breaking type fracturing propping agent disclosed by the invention can enter the stratum along with fracturing fluid, and the gel breaking agent can be released slowly under the stratum conditions; and as the propping dosage is great, the gel breaking agent is distributed uniformly, and gel breaking can be realized to the greatest extent. Simultaneously, a chemical material coating the gel breaking agent can be stilly firmly coated on matrix particles, thus the problems of breaking, reflux and stratum embedding of the propping agent can be reduced.

The invention relates to a tumor-targeted gene vector material and a preparation method and use thereof. In the invention, functional graphene oxide is used as a targeted transport vector of genomic molecules such as siRNA. The preparation method comprises: connecting folic acid tumor cell targeted molecules and amino-terminated polyethylene glycol by amido bonds; connecting the graphene oxide with the coupling material by amido bonds to obtain the tumor targeted functional graphene oxide; anchoring aminated molecules with an aromatic conjugated structure onto the surface of the graphene oxide through pi-pi conjugation; and finally, preparing the tumor targeted high-efficiency gene transport system by static attraction between the positively charged functional graphene oxide and the negatively charged genomic molecules. The vector material has a high targeting performance for tumor cells in which folic acid receptor is expressed more highly, and after being loaded with siRNA, the corresponding target gene level and related protein expression can be reduced. The invention provides a new method for the in-vivo targeted transportation of genes.

The invention relates to a transient electromagnetic logging instrument which comprises a shell, a circuit module and an electromagnetic probe system, wherein the circuit module is arranged in the shell, and the electromagnetic probe system is connected with the circuit module. The circuit module is sequentially connected with a power voltage regulator module, a PWM (pulse width modulation) module, a high-power isolating transformer bank and a power conversion module through a direct-current power supply to form a direct-current power supply circuit and a main control circuit taking a digital signal processor as a core, and a communication bus, a power bus, a control bus and a data bus are arranged on the periphery of the main control circuit. The electromagnetic probe system comprises a transmitting coil and a plurality of receiving coils, wherein the transmitting coil is provided with a magnetic core. The instrument detects casing damage and effectively measures the formation resistivity of an open hole well and a cased well in a non-contact mode. High-power transient excitation is realized by the aid of internal iron cores of the coils, the excitation intensity of a transient electromagnetic field is improved, and the formation resistivity is finally obtained by necessarily graduating and processing measured original signals.

The invention discloses an air frying pan with the improved structure. A frying pan shell of the air frying pan comprises a frying-pan bottom shell body and a frying-pan upper shell body. An inside heating pot is embedded into a bottom-shell containing cavity of the frying-pan bottom shell body, a food basket is embedded into a heating-pot containing cavity of the inside heating pot, the inside heating pot and the food basket are distributed in a spaced mode, and an downward-blowing hot-air channel and a bottom hot-air channel are formed between the inside heating pot and the food basket; a fan cover, a fan driving motor and a controller are installed in an upper-shell containing cavity of the frying pan upper shell body, a centrifugal fan is embedded into a circulation cavity of the fan cover, a circulation air inlet and a circulation air outlet are formed in the fan cover, and an electric heating tube is installed under the circulation air inlet; an inner folded plate is arranged in the edge of the upper end of the food basket, a flow leading boss is arranged on the bottom face of the heating-pot containing cavity, and a plurality of flow leading slopes are arranged on the flow guiding boss. By means of the air frying pan with the improved structure, the distribution condition and the flowing condition of hot air in a pan body can be effectively improved, the contact area between the hot air and food can be increased, and air can more effectively enter the food part of the center of the food basket.

The invention discloses an oxaliplatin liposome glucose preparation and the preparation method and application, relating to an oxaliplatin liposome glucose solution preparation used for tumor resistance and the preparation method and application. An oxaliplatin liposome glucose preparation is formed by liposome which prepared by oxaliplatin, hydrogenated phosphorus, cholesterol and DSPE-PEG2000, and is dissolved in glucose solution; wherein the weight ratio of the hydrogenated phosophorus and the oxaliplatin is 1:1-50; the weight ratio of the hydrogenated phosophorus, cholesterol and the DSPE-PEG2000. The preparation method is that the hydrogenated phosophorus, cholesterol and the DSPE-PEG2000 are weighed according to proportioning by weight in a description and then fixed together; tertiary butyl alcohol is added into the fixture for the fixture to be stirred and dissolved, then the fixture is precooled; the oxaliplatin saturated water solution with 4-10 percent of glucose after cooling and drying is stirred, dissolved and emulsified by an emulsion balancing machine and then prepared into liposome solution by a homogenizer and a nanometer extruder, separated and refined through a filter column to prepare the oxaliplatin liposome glucose solution.

The invention discloses a casting quality test method and device and an application method of the device. The casting quality test device comprises three parts including a casting test conveying mechanism, a casting surface defect test device and a defect identification and classification mechanism, wherein the casting test conveying mechanism can be used for fixing a polished casting to be testedon a vacuum suction disc; the polished casting to be tested is conveyed into the casting surface defect test device through a conveyor belt; the device mainly applies a digital image processing technology, and a mounted industrial CCD (Charge Coupled Device) camera is used for acquiring an image; and a digital image processing algorithm designed on a background is used for carrying out defect identification on a casting surface polishing image. In an identification process, surface defect positions of the casting need to be obtained, and defect size and area also need to be calculated, so that defect grades are judged and classification of defect types is realized. A parameter report is generated according to a final identification result and a tested casting body is marked; and castingswith qualified polishing and castings with unqualified polishing are classified and output through the defect identification and classification mechanism.

The invention provides an automatic hydraulic model establishment method based on CAD drainage network drawing information, and belongs to the crossing field of the municipal engineering information technology and the geographic information system technology. The method starts from the hydraulic model establishment and is based on the storage situation of the CAD drainage network drawing information, complex layering does not need to be conducted on CAD engineering drawings, the manual one-by-one attribute data recording work is greatly simplified, the CAD profile diagram attribute data are converted to a GIS database in batches through TrueTable software, data can be automatically recorded in batches, the complex operation of the manual one-by-one data recording is greatly reduced, the data recording work efficiency is improved, the quality of the model data is ensured, and the quality of an established hydraulic model is improved.

The synthesis method of titanium-silicon metaporous molecular sieve uses non-ionic surfactant P123 as template agent, uses F(-1) as catalyst and utilizes silicon source and titanium source to make synthesis under the acid condition, and its preparation process includes the following steps: (1). using template agent and making it into acid solution, stirring for 5-24 hr, at 35-80 deg.c; (2). adding fluoride and stirring for above 5 hr.; (3) mixing silicon source and titanium source, adding them and continuously stirring for 12-48 hr, and obtaining primary gel product; (4) crystallizing said product for above 12 hr. at 40-100 deg.c and (5) precipitation, separation, washing, drying and roasting for above 5 hr. at 450-800 deg.C so as to obtain the invented product.

The invention discloses a method for preparing composite dephosphorus adsorbent by virtue of activated carbon fiber loaded with metal. Carbon fiber is used as a matrix which is loaded with a metallic compound. The method comprises the following steps of: a, mixing lanthanum ions into an iron salt for preparing a mixture solution of iron ions and lanthanum ions; b, putting the prepared solution under an ultrasound environment, additionally adding a radiation method, gradually adding a hydroxide solution into a metallic ion mixture solution until the pH reaches 9-10, and obtaining nano-particle suspension liquid of iron and lanthanum composite metal hydroxide; c, shearing activated carbon fiber into pieces, washing, dipping, filtering and drying; d, weighing the activated carbon fiber, adding the activated carbon fiber into the suspension liquid, processing by utilizing ultrasound waves, taking out solid matters, and washing for multiple times until the pH reaches 7; and e, drying the solid matters, obtaining an adsorbent material after cooling, and sealing the adsorbent material for storage. According to the invention, the iron and lanthanum composite metal hydroxide is in uniform particle size distribution on the carbon fiber matrix, has a high adsorption capacity and a low preparation cost and is suitable for industrial application.

The invention discloses a water complementing system for a fish-way entrance, which has good fish attracting effects. The water complementing system comprises a water complementing pool, wherein a water completing header tube is connected on the water complementing pool; at least one water complementing sub tube is connected on the water complementing header tube; a plurality of water complementing branch tubes are connected on the water complementing sub tube. The water complementing system adopts a sectional water complementing manner to simultaneously complement water for a plurality of positions of the fish-way entrance, so that water flow speed of the whole fish-way entrance is simultaneously changed without destroying the flow regime at the fish-way entrance, the flow regime at the fish-way entrance is kept to be stable to effectively attract fishes to enter the fish-way, thereby achieving good fish attracting effects; moreover, a plurality of water complementing branch tubes are adopted to complement water, and flow speed at the exit of each water complementing branch tube is not too large, so that large interferences cannot be caused to the flow speed of the fish-way, the tracing of fishes is not affected and is not blocked. The water complementing system is suitable for popularization and application in the fish-way field.

A high-rise and ultra-high-rise climbing-type fire fighting rescue system comprises a fire fighting operation platform, a rescue device, a climbing system, a machine frame and a driving system. The fire fighting operation platform is located on the upper portion of the whole system, the rescue device is of a box body structure, and the climbing system is connected with the machine frame. A power system is arranged inside the high-rise and ultra-high-rise climbing-type fire fighting rescue system, an inner combustion engine can be used for supplying power and hydraulic double-power output without the help of external force, a fire fighter operates the climbing system to drive the whole fire fighting rescue system to climb up and down along the outer wall of a building, the fire fighting rescue system can quickly and effectively enter a fire area, where a ground device cannot reach, of the high-rise building, fire fighting work can be completed, and personnel trapped in the high-rise building can be rescued. The high-rise and ultra-high-rise climbing-type fire fighting rescue system aims to solve the fire fighting rescue problems of high-rise buildings and ultra-high-rise buildings, the high-rise and ultra-high-rise fire fighting rescue system is studied, therefore, the blank of high-rise fire fighting equipment is filled, the urgent needs for a fire fighting rescue system for the high-rise buildings and the ultra-high-rise buildings are met, and the high-rise and ultra-high-rise climbing-type fire fighting rescue system is significant for protecting life and property safety of people.

The invention provides a feed addictive for improving pork quality and increasing efficiency of feed utilization and preparation thereof, and belongs to the field of feed addictive. The feed addictive is composed of natural Chinese herbal medicine, is capable of improving metabolism function of pig and strengthening immunity function of pig, has no side effects, and thus improves the pork quality. In the same time, the feed addictive can also condition the intestinal tract health, promotes absorption and utilization of feed, increases utilization rate of feed and breeding benefit, and effectively decreases breeding cost and risk. The feed addictive is composed of following components in parts by weight: 5 to 15 parts of eucommia powder, 5 to 10 parts of poria cocos powder, 15 to 20 parts of anemarrhena powder, 5 to 9 parts of matrimony vine enzymolysis powder, 4 to 8 parts of clove, 5 to 8 parts of haw, 8 to 12 parts of composite polysaccharide extract, and 8 to 20 parts of fermented soybean meal. The preparation method is mixing the components mentioned above together.

The invention relates to high-efficiency sulfurizing hydrargyrum-removing porous nanometer carbon and a preparation method thereof, belonging to the field of chemistry. The preparation method comprises the following steps of: mixing porous nanometer carbon and sulfur, and then placing into a closed pressure vessel with dry ice or liquid carbon dioxide together; heating the closed pressure vessel to 31-200 DEG C to make the carbon dioxide reach a supercritical state, keeping for 1-48 hours, or heating the carbon dioxide to the supercritical state, then injecting into the closed pressure vesselcontaining a mixture of the porous nanometer carbon and the sulfur, and keeping for 1-48 hours; and then cooling to room temperature, and evacuating the carbon dioxide so as to prepare the sulfurizing porous nanometer carbon, wherein the mass percent of the sulfur contained in the sulfurizing porous nanometer carbon is 2-50 percent. According to the invention, high sulfurizing quantity and the quantity as well as the specific surface area of the sulfur available during hydrargyrum removal are furthest ensured by tactfully adopting the gas-liquid dual property of the supercritical carbon dioxide, and therefore an optimal hydrargyrum removing effect is achieved; in addition, the advantages of simple process, high efficiency, environment friendliness and low cost are achieved.

The invention discloses a method for preparing lanthanum and ferric composite absorbing phosphorous removal agent. The method comprises the following steps: firstly, preparing a mixed solution of iron nitrate and lanthanum nitrate; secondly, washing crude activated carbon fiber for a plurality of times through water, putting the washed crude activated carbon fiber into deionized water for dipping, filtering and drying so as to obtain fine activated carbon fiber; thirdly, adding the fine activated carbon fiber into the mixed solution of the iron nitrate and the lanthanum nitrate, and performing ultrasonic treatment on the fine activated carbon fiber, so as to obtain solid matter A; fourthly, putting the solid matter A into an aqueous solution of ammonia for dipping, and filtering the solid matter A; and fifthly, washing a filter cake obtained in the step four for a plurality of times through the deionized water till the pH value is 7, and then drying and cooling the filter cake to be at room temperature, so as to obtain the lanthanum and ferric composite absorbing phosphorous removal agent. The method adopts liquid phase deposition, realizes the uniform loading of two types of metal on the surface of a material, and overcomes the phenomenon of non uniform mixing of the metal due to layering of various metal by adopting direct precipitation method. The adsorbent obtained through using the method has the advantages of high adsorption capacity, high adsorption rate and the like.

The present invention discloses a rotary type new energy vehicle charging pile with a heat dissipation apparatus. The rotary type new energy vehicle charging pile comprises a charging pile body. The bottom of the charging pile body is provided with a rotary chassis. The top of the charging pile body is provided with a rain shield rack. The rotary chassis is separated from an inner cavity of the charging pile body via a separator plate. The inside of the rotary chassis is provided with a rotary groove to be connected with a rotary roller. The axis of the rotary roller is connected with an uppercylinder of a telescoping column. The upper cylinder is connected with supporting frames via a supporting ring sleeve. The supporting frames are connected with the rotary chassis via pedestal plates.The top plate of the charging pile body under the rain shield rack is symmetrically equipped with two heat dissipation fans. Bottom ends of left and right side plates of the charging pile body are respectively equipped with heat dissipation grid plates. An outer side of each heat dissipation grid plate is provided with a protective arc plate. A charging gun and a wire reel are successively disposed over each protective arc plate from bottom to top. Air flow is accelerated through the heat dissipation fans and the heat dissipation grid plates, and the heat dissipation effect is increased.

The invention relates to a borocarbon diffusion micro alloying method for the pick of a coal mining machine. Alloy steel 35CrMo is adopted as pick material, and the method comprises the following processing steps that: step 1, acid cleaning; step 2, carburization, titanizing and manganizing treatment: carburizer and lanthana powder are carried out and evenly stirred and sent into an infiltration box; titanium powder and manganese power are adopted to coat on the cutting part at the tooth tops of the pick that is then vertically put into the infiltration box which is compacted and sealed; then the infiltration box is sent into a heating furnace, the temperature is rised to 650 DEG C + / - 10 DEG C, is kept for 1.5 to 2.5 hours, then continuously rised to 910 DEG C + / - 10 DEG C and is kept for 8 to 10 hours; then the temperature is lowered to 850 DEG C + / - 10 DEG C and is kept for 1.5 to 2.5 hours and continuously lowered to less than 800 DEG C and taken out of the furnace; the taken-out infiltration box is cooled to room temperature and opened; step3, boronizing, tungstenizing and chromizing treatment; step 4, salt-bath treatment; step 5, annealing treatment; step 6, tempering treatment; step 7, shot-peening treatment. The method of the invention is capable of improving the intensity, hardness and high-temperature abrasion resistance at the tooth tops of the pick of the coal mining machine and causes the handle of the pick to be difficult to break.

The invention discloses a CVD diamond grinding wheel with an ordered micro-structured surface and a making method thereof. The grinding wheel is characterized in that a layer of diamond film is deposited on the outer circumferential face of a grinding wheel hub, a large number of staggered in-order micro grinding units are machined on the whole outer circumferential face of the diamond film, and the top ends of the grinding units are in kidney shapes. The making method is characterized in that through the chemical vapor deposition that is CVD, the diamond film is deposited on the outer circumference face of the grinding wheel hub, a pulse laser beam is adopted to machine the large number of micro grooves with the same geometric dimensioning in the outer circumference face of the whole diamond film, and the large number of micro grinding units are formed; the grinding units are arranged in a staggered and in-order manner, the top face of each grinding unit is in a kidney shape, according to the grinding wheel, the effective sharpening number of the grinding wheel during grinding can be improved, the chip formation efficiency and the surface material removal rate are improved, the cutting performance is improved, the surface machining quality and the cutting efficiency can be improved, the holding force of the grinding wheel hub to the grinding units can be increased, and the service life of the grinding wheel can be obviously prolonged.

The invention relates to antiGPC3-PB NPs (antiglypican3-Prussian Blue Nanoparticles) for photothermal therapy and magnetic resonance imaging of liver cancer as well as preparation and an application thereof. The antiGPC3-PB NPs consist of cores of PB NPs formed by taking citric acid as a surface protectant and a GPC3 antibody which is in covalent coupling through EDC / NHS on the surface. The antiGPC3-PB NPs provided by the invention have a good target recognition function to hepatoma carcinoma cells HepG2 and effectively enter the cells. Meanwhile, the antiGPC3-PB NPs have an excellent photothermal killing function to the HepG2 cells and can be used for photothermal therapy of hepatoma carcinoma cells. The antiGPC3-PB NPs have a good nuclear magnetic resonance contrast imaging function and have a potential of becoming a new generation of a target magnetic resonance imaging contrast agent.

The invention discloses an intelligent refrigerator system capable of achieving interaction. The intelligent refrigerator system capable of achieving interaction comprises a box body, a weight collection module, a speech recognition module, a scanning module, a processing module, a display module and a wireless transmitting and receiving module; the weight collection module, the speech recognitionmodule, the scanning module, the processing module, the display module and the wireless transmitting and receiving module are arranged on the box body, the weight collection module is used for collecting food weight information, the speech recognition module is used for collecting speech information, the scanning module is used for collecting food basic information, the processing module is usedfor receiving and processing the collected food weight information, the speech information and the food basic information, and processed information is obtained. The wireless transmitting and receiving module is used for receiving the processed information and sending out wireless information. The intelligent refrigerator system capable of achieving interaction can rapidly and effectively record food information, and can achieve food management in time.

The invention relates to BE rust inhibitor based method and device for restoring electroosmotic salt polluted buildings. The invention is characterized in that the method mainly comprises the following steps of: (1) setting a rust inhibitor-electrolyte maintaining and circulating system on the building surface; (2) injecting the BE rust inhibitor and the electrolyte into the rust inhibitor-electrolyte maintaining and circulating system; (3) arranging an anode in the rust inhibitor-electrolyte maintaining and circulating system; (4) connecting the anode with a positive electrode of a direct current power supply, and connecting a negative electrode of the power supply with a reinforced steel bar in the building; controlling the current density, and continuously energizing until the BE rust inhibitor effective groups are enriched in the vicinity of the reinforced steel bar in the restored concrete and a protecting film is formed on the surface of the reinforced steel bar. The invention has the effect for discharging chloride ions under the action of the electric field, and has the advantages of simplicity, easy operation, long restoring protection period, low cost and good effect.

The invention relates to an activated carbon fiber adsorbent loaded with lanthanum hydroxide and a preparation method thereof. An activated carbon fiber is taken as a substrate of the absorbent and the lanthanum hydroxide is loaded on the substrate, wherein a scope of a weight ratio of the lanthanum hydroxide to the activated carbon fiber is 0-0.85. Under an acoustic cavitation effect of ultrasonic waves, a periodical oscillating effect is achieved in liquid, thereby achieving a smaller dimension of deposited crystallite, achieving uniform size distribution and excellent dispersity, strengthening a transmitting process, causing the lanthanum hydroxide to efficiently enter into the activated carbon fiber, and efficiently promoting a loading capacity and shortening preparation time. The adsorbent prepared by using the method provided by the invention has the advantages of high adsorption capacity, high adsorption rate and the like. An ultrasonic depositing method has the advantages that a required instrument is simple, operation is convenient, a compounding temperature is low, an easily occurring conglobating defect of a traditional depositing method is overcome, and an industrial application prospect is excellent.

The invention discloses a filter unit for a dark pipe for saline-alkali soil. The filter unit comprises a pervious layer, a dressing layer and a water filtering layer, the pervious layer is wrapped with the dressing layer, and the dressing layer is composed of PVC or PE prilling materials with the diameters ranging from 0.5 cm to 0.6 cm; the dressing layer is wrapped with the water filtering layer. According to the technology, the water filtering layer formed by thick sand and straw serves as a main filtering layer, so that large particles and sludge can be effectively blocked; the dressing layer serves as an auxiliary layer so as to further filter water flow flowing through the water filtering layer, and then water enters the dark pipe through the pervious layer, so that small particles can be effectively prevented from entering the dark pipe, and blocking is prevented; the straw and the thick sand are adopted, so that material selection is convenient, and the cost is reduced; the straw rotting speed is low, the effective using time can be guaranteed, supplementing is convenient, and soil can be improved after straw rots.

The invention provides a composite layer. The composite layer is used for controlling acidization of a mining slag heap yard and comprises a flow guiding layer, a first nonwoven fabric layer, a sand and stone layer, a second nonwoven fabric layer and an isolation layer which are arranged in sequence. The invention further provides a method for controlling the acidization caused by the mining slag heap yard and a revegetation method of the mining slag heap. By establishing a buffer isolation zone between a mining slag heap yard acidization surface and a plantation layer, the acid water containing a variety of heavy metal ions can be blocked and isolated, sulphur minerals in the lower layer can be effectively prevented from being further oxidized and acidified, the acid liquor in the lower layer can be prevented from permeating reversely into the upper layer so as not to pollute the plantation layer and poison plants under the action of soil capillaries. By reconstructing the plantation layer on the composite layer, a long-term stable fit environment can be created for the growth and development of plants, the vegetation degradation can be avoided, and the purposes of ecological remediation, environmental improvement and soil and water conservation can be achieved.

The invention relates to a tubular fixed lead-acid storage-battery anode active substance for energy storage, comprising lead powder, read led, nano-graphite, bitter salt, charcoal and silicon dioxide. The read led is capable of improving the transforming efficiency of the anode active substance and reducing the duration of formation; the sound conducting performance of the nano-graphite can improve the conducting capability of the active substance and facilitate charge and discharge of the storage battery; the bitter salt, charcoal and silicon dioxide can effectively improve the porosity of the active substance, thus building the network structure of the active substance to facilitate the electrolyte to melt into the active substance efficiently, thereby, the high-current discharge capability and the utilization ratio of the active substance are improved; besides, the invention is also environment friendly.

The invention discloses a seedling raising method for yellow peaches with high quality. The method includes the operation steps of rootstock cultivation: soaking black plum seeds in rotted mature liquid, putting the seeds in a dry ventilated place, naturally airing, and sowing the seeds after drying; scion collection: collecting scions on a female parent tree of an improved variety, inserting the morphology lower-ends of the scions into a nutrient solution to soak, putting into a high-concentration carbon dioxide environment, using, and conducting grafting treatment after ultrasonic treatment; grafting: grafting the scions onto the rootstock, evenly applying growth liquid at grafting parts, and then binding the scions with flattened corn straw. The seedling raising method is simple in operation, the obtained yellow peach seedlings are high in survival rate after field planting, vigorous in growth and development and large in fruiting amount, and the fruited yellow peaches are good in quality, so that the seedling raising method greatly promotes the development of the yellow peach planting industry.

The invention introduces a GaN-based LED epitaxial wafer and a growing method thereof. At least one cyclic n type defect blocking layer is introduced after an n type GaN layer. Due to the introduction of the n type defect blocking layer, on one hand, a defect that is generated by heteroepitaxy or n type doping can be blocked, thereby improving a growing quality of a crystal; on the other hand, a current can be expanded and an impact of static electricity on a GaN-based LED is softened, thereby enhancing an endurance capacity of the LED to the static electricity; moreover, electrons can access a quantum well effectively and an injection efficiency of the electrons into the quantum well can be increased, so that a brightness of the LED can be enhanced. According to the invention, a chip with an area of 300 * 300 square microns is manufactured according to a standard chip technology; an ESD with 4, 000 V (human body mode) is enhanced from 70% to over 90% and a brightness is raised from 14 mW to over 16 mW.

The invention discloses an amphipathic conjugate anti-tumor nano-drug with the function of reversing multidrug resistance of tumors. An anti-tumor drug is in covalent linkage with a P-gp protein inhibitor quinine by a coupling agent to form amphipathic conjugate, and the amphipathic conjugate is self-assembled under water, so as to obtain the amphipathic conjugate anti-tumor nano-drug. The invention also discloses a preparation method and application of the amphipathic conjugate anti-tumor nano-drug. Compared with the prior art, the amphipathic conjugate disclosed by the invention can be self-assembled in water to form the anti-tumor nano-drug, and does not need any drug carrier, thereby realizing common delivery of the P-gp protein inhibitor and the anti-tumor drug; after the anti-tumor nano-drug enters multidrug resistance tumor cells, linking groups are fractured under a microenvironment condition in tumor cells, and the anti-tumor drug and the P-gp protein inhibitor are released out and generate the synergistic effect, thereby effectively killing the tumor cells and the multidrug resistance tumor cells and hopefully improving the treatment effect of the tumors and multidrug resistance tumors.

The invention discloses a pressure control type intelligent production pipe column capable of injecting acid by layer selection and a production method. The production pipe column comprises an upper-section pipe column provided with an underground safety valve, a passing cable packer and an electric submersible pump, and a lower-section releasing layered pipe column provided with a releasing tool, a positioning seal, a first inserting seal, a second inserting seal and a guide screw plug; pressure control switches are arranged at a plurality of positions of the production pipe column respectively; and the production method comprises the steps of manufacturing the production pipe column, mounting the pressure control switches, putting in the releasing layered pipe column and the upper-section pipe column, remotely controlling and pressurizing, digging in turn and exploring water, acidifying at a fixed point and the like. The pressure control type intelligent production pipe column and the production method, disclosed by the invention, have the advantages that the production pipe column can work only if the releasing layered pipe column is put for one time, and an instrument or the pipe column does not need to be detached; the technical difficulty of large-inclination well layered water control and oil extracting can be effectively solved; water finding, water control, layer-adjusting production and fixed-point acidifying of different oil layers are realized through remotely controlling the pressure control switches on the ground; and the acid can effectively enter a target reservoir stratum in an acidifying process.

A paper currency transmitting and detecting device in the paper currency anti-forgery technology field includes: a guidance wheel set, a first money transmitting sliding plate, a first image sensor, a second money transmitting sliding plate, a second image sensor and a control module, wherein, the first money transmitting sliding plate is fixedly arranged at the front end of the second money transmitting sliding plate, the first image sensor is arranged below the first money transmitting sliding plate, the second image sensor is arranged above the second money transmitting sliding plate, the guidance wheel set is arranged between the first money transmitting sliding plate and the second money transmitting plate, and the control module is respectively connected with the guidance wheel set, the first image sensor and the second image sensor. The paper currency transmitting and detecting device controls twice anti-forgery detection by a controller program, and effectively leads the paper currency waiting to be detected to enter the detection area of the image sensors smoothly by the match of money transmitting sliding plates with specific shapes, thus ensuring image processing effect and reducing the generation of misjudgment.