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Method for preparing degradable copolyester by trinary reactivity blending
Disclosed is a method of preparing a degradable copolyester by means of ternary reactive blend. The present aliphatic polyester and diol have a reactive blend, then have a melting state transesterification reaction with aromatic polyester to generate degradable fat / aromatic copolyester. The invention has the advantages that the aliphatic polyester is inserted into the aromatic polyester effectively, the molecular weight of the polymer can be improved, and the copolyester is given with the degradation performance. The invention does not use any catalyst during the synthesis, and has the advantages of simple synthesis process, easy reaction operation and cheap and available raw materials. The copolyester either has certain of mechanical property or certain of degradation property.
Owner:NANCHANG UNIV
ZB (zebrafish) transposon system and gene transfer method mediated by same
ActiveCN105018523AEfficient transfer mediationImprove transfer efficiencyFermentationVector-based foreign material introductionCloning SiteBiology
The invention belongs to the field of animal genetic engineering, and relates to a ZB (zebrafish) transposon system of and a gene transfer method mediated by the ZB transposon system. The ZB transposon system is derived from zebra fish, and comprises two transgenic donor plasmids with terminal repetition sequences and capable of being inserted into a target gene box, and transposase auxiliary plasmids for providing activity of transposition; the transgenic donor plasmids comprise terminal repetition sequences and Msc1 insertion cloning sites at two sides of ZB transposon. The invention further discloses a gene transfer method based on the ZB transposon system, which is characterized that target genes are guided into a receptor genome through the ZB transposon system. The system and the method can be applied to multiple field of biotechnology: (1) the method can be used for effectively inserting the target gene box into a host cell genome, so that the gene transfer efficiency is improved; (2) by combining with the gene trapping technology, the researches on functions of animal genes can be effectively developed; (3) human gene therapy can be realized through mediation.
Owner:SHANGHAI CELL THERAPY GRP CO LTD
Cloth feeding mechanism of embroidery machine
The invention discloses a cloth feeding mechanism of an embroidery machine. The cloth feeding mechanism comprises a front cloth clamping roller set, a rear cloth clamping roller set, a left chain transmission mechanism and a right chain transmission mechanism, wherein the front cloth clamping roller set and the rear cloth clamping roller set are arranged in front of and at back of a machine head respectively; the left chain transmission mechanism and the right chain transmission mechanism are arranged on the left side and the right side of the machine head respectively; the left chain transmission mechanism comprises a first driven chain wheel, a first driving chain wheel and a first chain, the first driving chain wheel is driven by a first motor to rotate, the first motor is fixedly mounted on a vertical plate which is parallel with the first chain and spaced with the first chain by a certain distance, the first driven chain wheel is rotationally mounted on the vertical plate, and the vertical plate is driven by a linear drive device to move horizontally; the right chain transmission mechanism comprises a second driven chain wheel, a second driving chain wheel and a second chain, the second driving chain wheel is driven by a second motor to rotate, the second driven chain wheel is rotationally mounted on a rack of the embroidery machine, and a plurality of insertion needles are mounted on the outside of each chain link of the first chain and the second chain. The cloth feeding mechanism of the embroidery machine guarantees the flatness of cloth between the front cloth clamping roller set and the rear cloth clamping roller set, and the embroidery quality is improved.
Owner:江苏润源控股集团有限公司
Movable image watermark insertion device and watermark insertion method
InactiveCN1516451AImprove the detection rateContinuous detectionTelevision system detailsUnauthorized memory use protectionComputer scienceInsertion device
The present invention relates to a device and a method for inserting watermark information into a moving image. The copyright ownership of the moving image represented by the watermark information is inserted into some frames of the moving image at irregular intervals. These frames are of such a number that the watermark information in the moving picture is invisible to the naked eye. Also, in these frames, the insertion position of the watermark information is determined based on a random value, and besides that, information restricting the copying of moving images is inserted together with the watermark information. When the moving image has become a static image, the watermark information can be easily seen with the naked eye, so illegal ones such as illegal reproductions are easily exposed.
Owner:APPLE INC
Cable taking-up and paying-off device for power tests
Owner:安徽亿力电力设备有限公司
Method and apparatus for performing policy based on service chaining in LTE/EPC
InactiveCN105376174ASupport dynamic expansionFlexible LTE/EPC ArchitectureAccounting/billing servicesTelephonic communicationStructure of Management InformationSoftware define network
An objective of the invention is to provide a method and an apparatus for performing a policy based on service chaining in LTE / EPC. Specifically, the PCRF device generates a corresponding service chaining policy in response to a control charging request about to-be-provided user data sent by a corresponding PCEF device, the service chaining policy is sent to the PCEF device based on a service chaining policy install attribute value pair corresponding to the service chaining policy in an extended Gx interface, the PCEF device performs the service chaining policy for the user data. Compared with the prior art, the present invention introduces the service chaining function into the L TE / EPC, such that the existing 3GPP LTE / EPC control plane architecture and policy can support the software defined network (SDN) open flow and service chaining.
Owner:ALCATEL LUCENT SAS
Method for preparing aniline copolymer and intercalation nanocomposite material of inorganic clay by mechanochemical polymerization method
The invention discloses a method for preparing an aniline copolymer and an intercalation nanocomposite material of inorganic clay by a mechanochemical polymerization method. The method comprises the following steps of: (1) placing inorganic clay into a round-bottom flask with a branch port, vacuum-pumping, fully filling with argon, adding a copolymerization monomer, wrapping a tin foil out of the round-bottom flask after magnetically stirring, and stewing out of light under normal temperature, to obtain a blending fluid suspension; (2) grinding the blending fluid suspension, adding an oxidizing agent, covering a mortar with a tunnel in a grinding process, introducing argon into one end of the tunnel, continuously grinding, until to become atropurpureus completely; and (3) washing with water and absolute ethyl alcohol respectively after reaction, and filtrating, vacuum-drying until constant weight, to obtain the intercalation nanocomposite material of inorganic clay. The intercalation nanocomposite material of inorganic clay and polyaniline copolymer in the invention, greatly raises a dissolving performance and mechanical properties, and simultaneously makes the applications of clay wider The preparation method is simple, and an intercalation rate of a copolymer is high.
Owner:ZHEJIANG UNIV
Graphene-modified starch multifunctional composite material and preparation method thereof
InactiveCN108384161AThermo-oxidative degradationInhibition affects the disintegration effectMaltitolPolyethylene glycol
The invention relates to a graphene-modified starch multifunctional composite material and a preparation method thereof, and belongs to the technical field of starch material modification. The graphene-modified starch multifunctional composite material is prepared from the following raw materials of: in parts by weight, 10-80 parts of starch, 0.001-10 parts of graphene, 10-25 parts of plasticizers, 0.5-5 parts of a processing assistant, 80-10 parts of a bio-based polymer material and 0.1-5 parts of functional assistants, wherein the plasticizers are more than one selected from purified water,sodium alginate, ethylenebisformamide, glycerin, propylene glycol, ethylene glycol, polyethylene glycol, sorbitol, maltitol, chitosan, chitin, pentaerythritol, 1,4-butanediol and the like. The graphene-modified starch multifunctional composite material has complete biodegradability, and the invention provides the simple and easy preparation method, so that industrial production is facilitated.
Owner:朱春英 +1
PS transposon system and mediated gene transfer method thereof
ActiveCN110257425AImprove transfer efficiencyEffective insertionNucleic acid vectorVector-based foreign material introductionHost genomeEmbryo
The invention discloses a PS transposon system and a mediated gene transfer method thereof, wherein the PS transposon system includes a transgenic donor plasmid capable of being inserted into a target gene cassette and having two terminal repeat sequences and a transposase assisted plasmid providing transposition activity. A target gene is introduced into a receptor genome through the PS transposon system. The gene transfer method based on the PS transposon system can efficiently mediate gene transfer through cell and embryo level verification, and can be applied in many biotechnological fields: 1) the target gene cassette can be inserted into the host genome effectively by using the method provided by the invention, and the efficiency of gene transfer is improved; 2) the study on animal gene functions can be effectively developed by combination of a gene capture technology; and 3) human gene therapy can be medicated to carry out.
Owner:SHANGHAI CELL THERAPY GRP CO LTD
High-stability fabricated wallboard for interior decoration
PendingCN112360082AEasy to install and operateLow costCovering/liningsWall plateManufacturing engineering
Owner:GOLD MANTIS FINE DECORATION TECH SUZHOU CO LTD
Hand-operated wheelchair with cambered small table and pedestal pan and manufacturing method of wheelchair
InactiveCN104287904AAvoid staggeringFeel comfortableWheelchairs/patient conveyanceWheelchairEngineering
The invention provides a hand-operated wheelchair with a cambered small table and a pedestal pan and a manufacturing method of the wheelchair. The hand-operated wheelchair comprises a wheelchair, a cambered table, an anti-stink pedestal pan, a pillow, an article holding frame, an infusion bag support and an oxygen cylinder fixing band; the hand-operated wheelchair is characterized in that the anti-stink pedestal pan is arranged on the seat of the hand-operated wheelchair, an excrement receiving bag sleeves the lower opening of the pedestal pan, the cambered table is arranged on the front face of the upper part of the seat, a metal hinge is arranged on the right side of the cambered table, a magnet piece is arranged on the left side of the cambered table, the article holding frame is arranged under the cambered table, a first metal supporting rod, a second metal supporting rod and the pillow are arranged on the back of the hand-operated wheelchair, a cylinder, an infusion supporting rod and a hook are arranged on the infusion bag support on the back of the wheel-operated wheelchair, and a hook for holding articles is arranged on the left side of the front of the hand-operated wheelchair. The hand-operated wheelchair with the cambered small table and the pedestal pan is economic and practical.
Owner:CHENGDU DRAGON WATER TREATMENT TECH RES INST
Multifunctional transfer vehicle
PendingCN108860261AEasy to transportValid countHand carts with multiple axesSpecial purpose weighing apparatusEngineeringFruits and vegetables
The invention discloses a multifunctional transfer vehicle, comprising a vehicle body, wherein the vehicle body is provided with a weighing scale and a computer for recording weighing data, the weighing scale is electrically connected with the computer, the vehicle body comprises a bearing portion and a mounting portion, the computer is mounted at the position of the mounting portion, the mountingportion is further provided with a printer for printing a goods document, the printer is electrically connected with the computer, and the weighing scale is arranged on the carrying portion. The multifunctional transfer vehicle has the advantages of simple structure, convenient transportation of fruits and vegetables, and simultaneous weighing operation.
Owner:温州菜篮子农副产品配送有限公司
Cylindrical lithium ion battery internal pressure detection equipment and use method thereof
ActiveCN113295322AEffective jackingEffective insertionElectrical testingFluid pressure measurementStructural engineeringLithium-ion battery
The invention discloses cylindrical lithium ion battery internal pressure detection equipment and a use method thereof. The cylindrical lithium ion battery internal pressure detection equipment comprises a storage mechanism, the storage mechanism comprises a storage frame and a battery body, the battery body is arranged in the storage frame, a negative electrode guide piece is embedded in the bottom face in the storage frame, and sliding grooves are formed in the opposite inner surface walls of the two sides of the storage frame; and a pressing frame is slidably embedded between the two sliding grooves and located below the battery body, fixing bolts are in threaded connection with the positions, close to the two corners, of the top of the storage frame, and a sealing cover is slidably arranged between the outer surfaces of the two fixing bolts in a sleeving mode. According to the invention, a rack can be effectively jacked up through a supporting spring and a pressing rod, then the rack can lift the pressing frame through the pressing piece, the battery body can effectively extrude the pressing frame in the process that the battery body is effectively placed into the storage frame, and then the pressing frame can drive the rack to move through the pressing piece, so that the moving rack can effectively drive the linkage gear to effectively rotate.
Owner:HENAN LI POWER SUPPLY
Feed for controlling gosling diseases
InactiveCN106578650AImprove survival ratePrevent diseaseFood processingAnimal feeding stuffSunflower seedSelenium
The invention discloses a feed for controlling gosling diseases. The feed comprises, by weight, 20-30 parts of corn protein powder, 10-18 parts of earthworm powder, 8-16 parts of peanut meal, 10-18 parts of sesame meal, 8-16 parts of pine needle powder, 8-14 parts of watermelon peel, 30-50 parts of straw powder, 16-28 parts of millet, 15-25 parts of carrots, 14-22 parts of malt selenium, 8-16 parts of kelp powder, 20-30 parts of modified sunflower seed meal, 4-8 parts of soy isoflavones, 2-4 parts of vitamins, 2-4 parts of calcium hydrogen phosphate, 2-4 parts of shell powder and 2-4 parts of a Chinese herbal medicinal additive; and the Chinese herbal medicinal additive comprises, by weight, 16-22 parts of dried orange peel, 20-30 parts of Radix Codonopsis, 16-28 of jujubes, 6-10 parts of hawthorn fruits, 10-20 parts of safflower, 5-15 parts of Radix Curcumae Aromaticae, 8-16 parts of peach kernel, 5-10 parts of lily, 5-10 parts of Rhizoma Atractylodis Macrocephalae, 4-8 parts of unprocessed rehmannia root, 2-4 parts of honeysuckle flowers, 0.5-2.5 parts of Polygonatum odoratum, 2-6 parts of Chinese Gall and 5-10 parts of chrysanthemum flowers.
Owner:DINGYUAN PEIZHANG ECOLOGICAL GARDEN CO LTD
Check ring pressing fit machine
InactiveCN108406275AAvoid safety hazardsEffective insertionMetal working apparatusBall screwHuman error
The invention discloses a check ring pressing fit machine. The check ring pressing fit machine comprises a discharging mechanism, a moving mechanism and a lifting mechanism. The discharging mechanismcomprises a base, a first supporting frame, a second supporting frame, a third supporting frame, a fourth support frame, a pushing cylinder, a pushing unit, a check ring guide bar and a bijective photoelectric sensor. The moving mechanism comprises a plurality of guide rails, a plurality of sliding cylinders, a support plate, a transverse slide rail, a fixing cylinder, a clamping unit and a fixingblock. The lifting mechanism comprises two guiding columns, a ball screw, an intermediate supporting block, a top supporting block, a lifting motor and a fixing base to be mounted. The check ring pressing fit machine can realize the automation of the installation of a check ring, reduces human error and avoids safety hazards of human operation.
Owner:安徽安元智能科技有限公司
Cloth feeding mechanism of embroidery machine
Owner:江苏润源控股集团有限公司
Preparation method of ultra-high molecular weight polyethylene/montmorillonite nano composite material
The invention discloses a preparation method of an ultra-high molecular weight polyethylene / montmorillonite nano composite material. The method comprises the following steps: 1) subjecting montmorillonite to surface modification treatment with a silane coupling agent, and dissolving magnesium chloride in a mixed solution of fatty alcohol and fatty hydrocarbon to form a stable solution; 2) adding the modified montmorillonite into the solution, and stirring the mixture to form a suspension; 3) dropwise adding the suspension into titanium tetrachloride for reaction, and filtering, washing and drying the liquid to obtain a catalyst; and 4) under the condition of slurry polymerization or gas-phase polymerization, initiating a catalytic ethylene polymerization reaction by adopting the catalyst to obtain the ultra-high molecular weight polyethylene / montmorillonite nano composite material. In the method, montmorillonite subjected to silanization treatment is added into a magnesium chloride-loaded titanium-series Ziegler-Natta catalyst, so that the magnesium chloride-loaded titanium tetrachloride catalyst can be effectively inserted into the interlayer of montmorillonite, in-situ polymerization of ethylene is realized, and the intercalated ultra-high molecular weight polyethylene / montmorillonite nano composite material is obtained.
Owner:深圳华世聚合新材料有限公司
HS-2067 nucleic acid sampling bin
PendingCN112594990AReduce operating powerEffective insertionDomestic refrigeratorsMachines using electric/magnetic effectsAir blowerSemiconductor
The invention discloses an HS-2067 nucleic acid sampling bin which comprises a storage mechanism and positioning mechanisms. The totally multiple positioning mechanisms are arranged, the multiple positioning mechanisms are divided into multiple sets, and each set of positioning mechanisms is totally provided with the two positioning mechanisms. The storage mechanism comprises a storage frame, a semiconductor refrigerator body and an air chamber, the semiconductor refrigerator body is fixed at the top of the storage frame, and the air chamber is fixedly connected to the bottom of the storage frame. In the HS-2067 nucleic acid sampling bin, during use, sealing strips at the bottom of the air chamber are rotated to be closed, the semiconductor refrigerator body and an air blower in the air chamber are started at the same time, flowing airflow generated by the air blower can be injected into the semiconductor refrigerator body through connecting pipes, then low-temperature air in the semiconductor refrigerator body can be effectively injected into air guide pipes, low-temperature airflow injected into the air guide pipes is effectively injected into each carrier through exhaust holes under the obstruction of air guide blocks, and meanwhile limitation of fixed plates to the positions of the carriers is relieved by opening a magnetic cover.
Owner:BEIJING ZIFENG HUANA TECH +1
A kind of zb transposon system and its mediated gene transfer method
ActiveCN105018523BEfficient transfer mediationImprove transfer efficiencyFermentationVector-based foreign material introductionCloning SiteAnimal gene
The invention belongs to the field of animal genetic engineering and relates to a zebrafish ZB transposon system and a transgenic method mediated by the ZB transposon system, which is derived from zebrafish and contains two terminal repeats that can be inserted into a target gene cassette The transgene donor plasmid of sequence and the transposase auxiliary plasmid providing transposition activity; the transgene donor plasmid includes the flanking terminal repeat sequence of the zebrafish ZB transposon and the Msc1 insertion cloning site. Also disclosed is a gene transfer method based on the ZB transposon system, which is to introduce the target gene into the recipient genome through the ZB transposon system. The present invention can be applied to multiple biotechnology fields: 1) The method provided in the present invention can be used to effectively insert the target gene cassette into the host genome to improve the efficiency of gene transfer; 2) Combined with gene capture technology, it can effectively carry out animal Gene function research; 3) It can mediate human gene therapy, etc.
Owner:SHANGHAI CELL THERAPY GRP CO LTD
Processing technology of stir-fried pumpkin seeds convenient to shell
The present invention relates to a processing technology of stir-fried pumpkin seeds convenient to shell. The processing technology comprises the following steps: step one, feeding; step two, automatic sequencing; step three, controlling material blocking; step four, active separation, wherein in synchronization with the step three, a material blocking assembly drives a transmission assembly to synchronously transmit, the transmission transmission assembly drives a supporting rod to move, and inserting assemblies move towards gaps between two adjacent pumpkin seeds and realize separation of the integrally bonded pumpkin seeds in the moving process; step five, cutting, wherein a translation process of the inserting assemblies drives an opening mechanism to synchronously move to complete anautomatic cutting operation of middle parts of the pumpkin seeds; step six, discharging controlling; step seven, screening; and step eight, baking and frying. The processing technology solves technical problems that partial pumpkin seeds are adhered together under adhesion of the pulp and not separated thoroughly due to incomplete cleaning, and the targeted single cutting operation of the pumpkinseeds cannot be realized during the cutting operation.
Owner:阜阳运筹生产力促进中心有限公司
A rock and soil layer drilling equipment for geological survey
ActiveCN114046134BEfficiently transported awayEffective squeezeDrilling rodsDrilling with mechanical conveyingSoil scienceDrive shaft
The invention discloses a rock-soil layer drilling equipment for geological survey, which relates to the technical field of surveying. The rock-soil layer drilling equipment for geological survey includes a support frame main body and a driving mechanism, and a depth depth is set inside the support frame main body. The adjustment assembly, the depth adjustment assembly includes a servo motor, a threaded rod, a nut piece and a No. 1 belt, a mounting plate is connected between the two nut pieces, the driving mechanism includes a drive motor, a drive shaft and a protective box, and the lower end of the drive shaft passes through the protective box A rotating rod is fixedly arranged, and a cylindrical cutter is fixedly arranged at the lower end of the rotating rod, and a sampling mechanism is fixedly arranged on one side of the rotating rod on the surface of the upper end of the cylindrical cutter. The rock and soil produced by the hole are discharged in time, and the rock and soil at different depths are sampled at the same time.
Owner:山东省地质矿产勘查开发局八〇一水文地质工程地质大队
5G integrated elastic needle structure
PendingCN110994245AValid resetNot shakingCoupling contact membersAntennas earthing switches associationEngineeringMechanical engineering
The invention provides a 5G integrated elastic needle structure used for connecting a filter and an antenna and comprising an elastic pin body and a contact pin body inserted into the elastic pin body, the head of the elastic pin body is connected with a PCB of the filter, the tail of the elastic pin body is provided with a connecting hole allowing the contact pin body to be inserted, the head ofthe contact pin body is inserted into the connecting hole, and the tail is in contact connection with the PCB of the antenna when the PCB is pressed. The elastic needle structure is reasonable in structural design, can effectively guide the insertion of the contact pin body, guarantees that the contact pin body does not shake or fall off, enables the contact pin body not to excessively abut against the elastic pin body after being pressed, enables the contact pin body to effectively reset after being pressed, can replace three connectors, and is lower in price and cost compared with the use ofthree connectors.
Owner:CHANGZHOU AMPHENOL FUYANG COMM EQUIP CO LTD
Slider-crank mechanism capable of controlling and balancing inertia force
The invention provides a slider-crank mechanism capable of controlling and balancing inertia force, and relates to the technical field of slider-cranks. The mechanism aims to solve the problem that when an existing slider-crank mechanism is used, and a slider-crank needs to be controlled to stop in a balanced vertical state, due to the rotation inertia force of the slider-crank, displacement is generated after the slider-crank mechanism stops. The novel mechanism comprises a main body and a main shaft, wherein the main body is of a rectangular plate-shaped structure, and two mounting holes areformed in the upper end and the lower end of the main body. The novel mechanism is characterized in that the main shaft is used for being arranged between an overturning arm and a swing arm, when a slider-crank rotates, the slider-crank needs to be stopped in a vertical state, and inertia force cannot be generated, a first electric cylinder can be directly controlled to ascend through a switch sothat limiting of a clamping piece can be removed, and the clamping piece can be in the state of being supported outwards by a spring; and when the swing arm rotates to a vertical state, the clampingpiece can be compressed firstly and then pushed by the spring to move outwards, and then the clamping piece is effectively inserted into a clamping groove.
Owner:青岛理工大学(临沂)管理委员会办公室
Modified polypropylene composite material for pipeline, and preparation method and application of modified polypropylene composite material
PendingCN110746691AImprove toughnessImprove notched impact strengthBulk chemical productionBenzimidazoleStearic acid
The invention discloses a modified polypropylene composite material for a pipeline, and a preparation method and application of the modified polypropylene composite material. The composite material isobtained by extruding and granulating of the following components in parts by weight: polypropylene, an ethylene-vinyl acetate copolymer, ethylene-propylene-diene monomer, an unsaturated carboxylic acid graft copolymer of a polyolefin elastomer, phosphogypsum whiskers treated by supercritical carbon dioxide, decabromodiphenylethane treated by supercritical carbon dioxide, nano antimony trioxide treated by supercritical carbon dioxide, a silane coupling agent, diisopropylbenzene peroxide, micro-nano organic modified montmorillonite treated by supercritical carbon dioxide, micro-nano flake graphite treated by supercritical carbon dioxide, 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 2-mercaptobenzimidazole, a light stabilizer GW-944 and calcium stearate through a twin-screw extruder additionally provided with a micro-nano laminated stretching device. The modified polypropylene composite material has the advantages of good antistatic performance, excellent flame-retardant performance and high notch impact strength.
Owner:GUIZHOU MATERIAL IND TECH INSTITUE
A polyvinylamine composite functional membrane with lamellar screening channels and its preparation method and application
ActiveCN107469635BEffective insertionSpacing regulationProductsSemi-permeable membranesSeparation factorComposite function
The invention discloses a polyvinylamine composite functional membrane with lamella sieving channels and a preparation method and application of the polyvinylamine composite functional membrane. The preparation method comprises the following steps: dissolving an intercalation copolymer of graphene oxide and polyvinylamine into a polyvinylamine solution, dispersing so as to obtain a uniform film casting solution, and preparing the functional membrane on the surface of a micro-pore filtering membrane by using a coating method, wherein t he adjusting range of the interlayer distance of the intercalation copolymer is 8.-24.. Polyvinylamine is dropped into graphene oxide dropwise and is effectively inserted into graphene oxide lamellae, and thus the lamella copolymer of the graphene oxide and the polyvinylamine is prepared; and by adjusting the ratio of graphene oxide to polyvinylamine, the interlayer distance of the graphene oxide lamellae can be regulated and controlled. When applied to CO2 separation, the composite functional membrane has relatively high CO2 permeation rate and separation factor. The preparation method disclosed by the invention is simple in process and easy to operate, and the CO2 permeation property of a polyvinylamine membrane and the CO2 selectivity of CO2 / CH4 and CO2 / N2 are effectively improved.
Owner:TAIYUAN UNIV OF TECH
A pH-sensitive fe3o4@ldh-loaded nano drug particle of methotrexate, its preparation method and its application
ActiveCN106552269BThe amount of coating is controllableOvercome the disadvantage of complicated operationPowder deliveryOrganic active ingredientsMedicineBiocompatibility Testing
The invention discloses pH sensitive-type Fe3O4 coated LDH methotrexate-loaded nano drug particles. According to the invention, LDH is directly added in a preparation system of Fe3O4 nanoparticles, while the Fe3O4 nanoparticles are formed, at the same time, the surface of the Fe3O4 nanoparticles is coated with LDH through a self-assembling mode, a Fe3O4 coated LDH carrier is formed, and MTX can effectively loaded on the Fe3O4 coated LDH carrier through a subject and object exchange technology. The employed LDH can increase the biocompatibility of the Fe3O4 nanoparticles, and a special structure of LDH can greatly increase the load capacity of an anticancer medicine. The prepared Fe3O4 coated LDH-MTX has excellent medicine slow release performance, has obvious inhibition effect on tumor cells, has good antineoplastic effect, and has large application potential in the field of targeting tumour treatment.
Owner:NANJING UNIV OF SCI & TECH
Methods and apparatus for hybrid multimedia presentations
ActiveCN101023648BFresh experienceEasy to insertData processing applicationsInformation formatReal time servicesMultimedia
System for providing hierarchical services in a data network. A method is provided for rendering hybrid presentations. The method includes caching one or more content items, and detecting a presentation event associated with a real-time service. The method also includes retrieving a selected content item from the one or more content items based on the presentation event, and rendering the selected content item.
Owner:QUALCOMM INC
Placement device for visual ventricle and abdominal cavity shunt tube and application method thereof
InactiveCN108514442AAvoid scratchesAvoid calculationCannulasSurgical needlesAbdominal cavityVentriculoperitoneal shunting
The invention belongs to the field of implantable medical treatment and particularly relates to an implantable auxiliary instrument for a visual ventricle and abdominal cavity shunt tube. A placementdevice for the visual ventricle and abdominal cavity shunt tube comprises an inner cannula and a sheath, a handle is connected to the rear end of the inner cannula, and a spring is arranged on the inner cannula; a cavity is formed in the inner cannula, a first threaded part is also installed on the inner cannula between the spring and the handle, a blunt end for integrated protection is added, a blunt instrument point can be prevented from scratching the abdominal cavity shunt tube, and unnecessary emergency conditions in the surgery are caused; through arrangement of a micro camera, minimallyinvasive surgery in ventriculo-peritoneal shunt can be observed, the blunt instrument point can also be prevented from scratching the abdominal cavity shunt tube, the unnecessary emergency conditionsin the surgery are caused, the insertion depth can also be observed, and the device helps a user to more accurately and conveniently implement the operation.
Owner:LISHUI PEOPLES HOSPITAL
A waterway movable connection device
The invention discloses a flexible connection device for a waterway. The flexible connection device consists of a plug and a socket, wherein the plug specifically comprises a plug valve body, an insert ring, a plug reset spring and a plug seal ring; the socket specifically comprises a socket valve body, a socket ring, a socket reset spring, a socket seal ring and a sealing piece; when the plug and the socket are in a separation state, under the elasticity action of the respective reset springs, the plug seal ring props against the abutting surface of the insert ring, and the socket seal ring props against a propping surface at the lower end of the sealing piece; when the plug and the socket are abutted, the respective reset springs are compressed, the plug seal ring is separated from the abutting surface of the insert ring, and meanwhile, the socket seal ring is separated from the lower end surface of the sealing piece, so that waterways at two ends of the plug and the socket are communicated, and due to the action of convex ribs at the inside surface of the sealing piece, water cannot flow out through a seam between the insert ring of the plug and the socket ring of the socket.
Owner:QINYUAN GRP CO LTD
storage table
ActiveCN111230824BRealize the hook operationEffective insertionWork tools storageStructural engineeringMechanical engineering
Owner:安庆中巨机电科技有限公司
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