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33results about How to "Improve the success rate of planting" patented technology
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Dental implant and preparation method thereof
ActiveCN102579145AIncrease the binding rateShorten binding timeDental implantsImpression capsMicro arc oxidationTitanium
The invention relates to the field of dental implant materials, and discloses a dental implant carrying miRNA (micro-ribonucleic acid) or siRNA (small interfering ribonucleic acid) and a preparation method thereof. The outer surface of the dental implant is a microarc oxidation coating with micro / nano appearance, wherein factors promoting osteogenic differentiation are loaded on the microarc oxidation coating, and are miRNA or siRNA. The preparation method comprises the following steps: processing pure titanium or titanium alloy into an implant matrix; polishing, cleaning and blow-drying; producing the microarc oxidation coating with micro / nano appearance on the outer surface of the implant matrix by adopting a microarc oxidation process, cleaning and blow-drying; mixing liposome and miRNA or siRNA to produce a carrier mixture; immersing the implant matrix into the carrier mixture, freezing with drikold; and loading the carrier mixture to the microarc oxidation coating by adopting a vacuum lyophilisation process, and standing at normal temperature to obtain the dental implant carrying miRNA or siRNA.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY
Method for preparing implant surface with multi-scale complex porous structure
ActiveCN104233318AEnhance osteogenic activityGood antibacterial effectProsthesisAcid etchingSand blasting
The invention provides a method for preparing an implant surface with a multi-scale complex porous structure and for preparing a titanium-based implant surface with antibacterial and osteogenic functions. The method adopts a three-step reduction method of sand blasting, oxalic-acid acid etching and alkali treatment and simulates a morphology environment for new bone formation in vivo under the physiological condition. The osseointegration of the implant surface can be accelerated, the surface is beneficial to the long-term stability of the implant, has a significant antibacterial performance, can inhibit infection of early planting, and can further improve the success rate of planting. With adoption of the method, a micro-nano composite pure titanium implant surface with the osteogenic and antibacterial performances, namely a three-dimensional implant surface with the multi-scale complex structure is prepared. The surface has an osteogenic activity higher than that of SLA most widely used in clinic and good antibacterial performance and has a wide application prospect. The surface has the extremely vital significance on expanding oral planting indications, shortening the implant restoration course, reducing infections relative to planting and increasing the success rate of planting.
Owner:ZHEJIANG UNIV
Individualized biomimetic dental implant and manufacture method thereof
InactiveCN106037965ALow elastic modulusImprove biomechanical compatibilityDental implants3d printCell adhesion
The invention relates to an individualized biomimetic dental implant and a manufacture method thereof. The invention is characterized in that the dental implant comprises an implant body for imitating the original tooth root tissue structure of a patient's missing tooth and also comprises a biomimetic artificial alveolar bone structure outer-layer for imitating a patient's alveolar bone tissue structure. The biomimetic artificial alveolar bone structure outer-layer and the external surface of the implant body are combined as a whole. The biomimetic tooth root implant body's outer layer is a 3D printed biomimetic artificial alveolar bone structure outer-layer which is combined with the implant body to form a whole structure, and is similar to the tissue structures of missing tooth's original tooth root and alveolar bone. Thus, the invention provides an ideal implementation scheme of a biomimetic artificial tooth root structure. What is the most important is that the invention provides a structure which is beneficial to bone marrow stem cell and osteogenesis-related cell adhesion, proliferation and mineralization and gives play to final osteogenic function and has good bioactivity. Therefore, a microenvironment for promoting osteogenesis is created, osteocyte generation is induced, and early rapid and firm synosteosis is realized.
Owner:STOMATOLOGICAL HOSPITAL TIANJIN MEDICAL UNIV
Fixing device for oral cavity, dental jaw tracker and implantation navigation system
ActiveCN108553186AReduce the risk of infectionNot easy to looseDental implantsSurgical navigation systemsWater bathsSurgical infection
The invention discloses a fixing device for an oral cavity, a dental jaw tracker and an implantation navigation system. The fixing device comprises a first part, a second part and a connecting part for connecting the first part with the second part; the first part, the second part and the connecting part form a clamping space to clamp teeth in a non-implantation region; when the fixing device is in a clamped state, the connecting part is in an initial state; when the fixing device is in a removed state, the connecting part changes from the initial state to a deformation state to assist the first part and the second part in separation. The fixing device disclosed by the invention has the following advantages: (1) the fixing device can firmly fix the teeth in the non-implantation region andis hard to loosen, so that the navigation accuracy is improved; (2) a technician does not need to manufacture extra accessories; the implantation operation can be performed on the day, so that the implantation treatment period is shortened; (3) after a fixing device package is sterilized, the fixing device is unpacked and directly used; water bath heating is not needed, so that the risk of surgical infection is reduced, and the implantation success rate is increased; (4) the removal process is simple and convenient.
Owner:SUZHOU DIKAIER MEDICAL TECH
EBM molded titanium implant and preparation method and application thereof
InactiveCN109234735AReduce pollutionEtching efficiency is lowMaterial nanotechnologySurface reaction electrolytic coatingMicro nanoAcid etching
The invention provides an EBM molded titanium implant and a preparation method and application thereof and belongs to the technical field of biomedical implant materials. The preparation method of theEBM molded titanium implant comprises the step of carrying out aftertreatment on a titanium implant molded in an EBM manner, wherein the aftertreatment comprises ultrasonic acid etching and anodic oxidation. According to the preparation method, during the preparation of the EBM molded titanium implant, the EBM molded titanium implant is subjected to surface treatment by adopting ultrasonic acid etching and anodic oxidation, so that residual powder can be effectively removed, and meanwhile, a micro-nano multistage structure beneficial to cell adhesion, propagation and differentiation is prepared on the surface of the titanium implant. The preparation method provided by the invention is simple and convenient, the consumption of chemical reagents can be effectively lowered; meanwhile, the prepared titanium implant has a rich micro-nano multistage structure, and thus, the osteogenesis activity of the implant can be effectively promoted; meanwhile, the bone integration capability of the implant can be effectively enhanced, the success rate of planting is increased, and thus, the EBM molded titanium implant and the preparation method thereof have broad application prospects.
Owner:SHANDONG UNIV
Seedling culture method for improving big bowl lump forming performances and seedling culture plug matched with method
The invention relates to a seedling culture method for improving big bowl lump forming performances and a seedling culture plug matched with the method. The seedling culture plug is a combined plug. According to the seedling culture method and the seedling culture plug matched with the method, improvement of the lump forming performances of a root bowl compound with larger bowl size is facilitated, so that seedlings are conveniently cultured and transported, lower taking type automatic seedling taking device is conveniently used when the seedlings are transplanted, the seedlings are automatically supplied and taken, seedling taking efficiency is high, the breakage rate of the root bowl compound can be reduced, damage to root systems of the seedlings is reduced in the transplanted manner, and the transplanted survival rate is high. The method is low in manufacturing cost and easy to popularize, mechanical automatic transplanting is achieved, standardized management is facilitated, and yield and income are increased.
Owner:CHINA AGRI UNIV
Seed coating agent and coated seed
InactiveCN108377692AImprove drought resistanceGuaranteed normal germinationSeed coating/dressingHyaluronic acid coatingsSeed treatmentDrought resistance
The invention provides a seed coating agent and a coated seed, and relates to the technical field of seed treatment. The seed coating agent is mainly prepared from raw materials including, by weight,2-10 parts of attapulgite, 89-97 parts of sandy soil, 0.5-2.5 parts of water absorbent resin and 40-60 parts of chitosan solution. The chitosan solution comprises, by weight, 2-5% of chitosan, and thesandy soil comprises, by weight, 5-10% of fertilizers. The seed coating agent and the coated seed have the advantages that the attapulgite, the sandy soil and the water absorbent resin have appropriate weight proportions, and accordingly the seed coating agent can wrap small seeds and even can wrap seeds with the low thousand-seed weights of 0.2 g; the chitosan solution and the attapulgite are mixed with each other, and accordingly the seed coating agent can be solidified on the surfaces of the seeds; the proportions of the various raw materials are appropriately selected, accordingly, the drought resistance of the seeds can be greatly improved by the seed coating agent in growth procedures, the germination and growth ability of the seeds can be guaranteed, and the establishment success rate of crops can be greatly increased.
Owner:LANZHOU UNIVERSITY
Bone trabecula porous tantalum dental implant and preparation method thereof
PendingCN111494035AHigh porosityHigh strengthDental implantsAdditive manufacturing apparatusPorous tantalumDentistry
The invention relates to the technical field of biomedical metal materials and oral implantation medical instruments, and provides a bone trabecula porous tantalum dental implant and a preparation method thereof. The bone trabecula porous tantalum dental implant provided by the invention has a cylindrical structure and sequentially comprises a top functional area, a middle functional area and a bottom functional area from top to bottom. The top functional area is of a compact structure, the middle functional area has a bionic bone trabecula porous structure, and the bottom functional area hasa compact structure. The bone trabecula porous tantalum dental implant is integrally prepared by taking pure tantalum or medical tantalum alloy powder as a raw material through an additive manufacturing technology. The bone trabecula porous tantalum dental implant provided by the invention is high in friction force, close to human bone in strength and modulus, excellent in bone ingrowth effect, high in implantation stability and long in service life, is of an integrated structure, and has no risk of delamination and separation during implantation.
Owner:深圳大洲医学科技有限公司
Dental implant
The invention relates to a dental implant. The dental implant comprises an implant body and an abutment connected with the body, wherein an annular groove region is formed in dental implant neck surface layers, which are in contact with soft tissues, of the body and the abutment; a porous layer region is arranged on the inner layer of the annular groove region; a plurality of spherical cavities are formed in the porous layer region and between annular grooves in the annular groove region; the spherical cavities which are in contact with each other communicate with each other; all the sphericalcavities which are in contact with the surfaces of the annular grooves are provided with openings in the surfaces of the annular grooves; and a plurality of axial pipes are arranged in the porous layer region, the lower portions of the axial pipes communicate with the spherical cavities, and the upper portions of the axial pipes are provided with openings in the surface of the abutment. Due to the structure of the porous layer region and a bioactive molecule combination, the soft tissue position of the neck of the implant is promoted to be stable in multiple ways, aesthetic defects caused bydisplacement of the neck of the implant to the root as well as reduction of bone absorption around the implant and shortening of the service life of the implant caused by the low bonding strength areavoided, and therefore, the implanting success rate is further improved.
Owner:STOMATOLOGICAL HOSPITAL TIANJIN MEDICAL UNIV
Hair follicle extracting and planting integrated instrument
ActiveCN106618647AEasy to operateReduce harmSkin implantsSurgical needlesTool bitIntegrated operations
Owner:SHANTOU UNIV
Method for constructing pond suitable for frogs to inhabit in green land
InactiveCN112064569ARetain ornamentalIncrease biodiversitySewerage structuresCoastlines protectionAmphibianPlant soil
The invention discloses a method for constructing a pond suitable for frogs to inhabit in a green land. The method comprises the steps that a pond body is excavated in the green land, a waterproof blanket and a clay layer are laid in the pond body to serve as a waterproof layer, and a planting soil layer is laid on the clay layer; various submerged plants are planted on the bottom face of the pondbody, local emergent aquatic plants are planted in a land and water transition zone, and therefore a small ecosphere suitable for survival of small aquatic organisms such as the frogs is constructedin the pond body, the green land such as the urban near-water green land and the urban open green land meets the growth and reproduction requirements of amphibians such as the frogs and other small aquatic animals, a small ecological system organically combining animals and plants is constructed in the green land, and the ornamental value of landscape water is reserved; and due to the fact that the small ecological system is constructed in the water, the biodiversity of the water in the green land can be greatly improved, a certain adjusting effect is achieved on the micro climate zone aroundthe green land, and the ecological effect of the water such as the pond in the green land is remarkably improved.
Owner:野趣生境环境设计(成都)研究院(有限合伙) +1
Cultivation and planting method of corn rich in anthocyanin
PendingCN113229075AIncrease contentGuaranteed sourceBio-organic fraction processingExcrement fertilisersBiotechnologyNutritive values
The invention belongs to the technical field of corn cultivation, and discloses a cultivation and planting method of corn rich in anthocyanin. The cultivation and planting method comprises the steps that corn seeds containing anthocyanin are planted to obtain hybrid female parents, the hybrid female parents and plants rich in anthocyanin serve as hybrid male parents, and first filial generation parents rich in anthocyanin are obtained on the basis that it is guaranteed that the hybrid female parents obtain a large number of anthocyanin-rich pollen sources in the modes of cross pollination, self-pollination and artificial pollination. Anthocyanin has the effects of resisting oxidation, eliminating free radicals, eliminating toxins and garbage in human blood, maintaining beauty and keeping young and resisting cancer cells, and corn particles, straws, outer skins, shaft cores and corn ears obtained through the method are rich in a large amount of anthocyanin and have extremely high nutritive value and utilization value. The cultivation and planting method of the corn rich in anthocyanin realizes high cultivation rate, high anthocyanin content and high planting success rate, and is suitable for planting in southwest China and weathered, windblown stone and sand areas. The organic fertilizer is applied, so that the absorption of nutritional ingredients at the roots of the corn is increased, and the soil is repaired.
Owner:重庆市紫色有约贸易有限公司
Oral implant
ActiveCN107811716AImprove initial stabilityImprove the success rate of plantingDental implantsMaximum diameterMedicine
The invention discloses an oral implant. The oral implant comprises an outer shell body and an implantation hole arranged inside the outer shell body, the outer shell body comprises a cylindrical mainbody part with an external thread, a circular truncated cone-shaped inclined shoulder part arranged on the top of the main body part, and a hemispherical spherical bottom part disposed at the bottomof the main body part. A first thread region and a second thread region are disposed on the main body part from the top to the bottom, and the pitch of the first thread region is smaller than the pitch of the second thread region. The implantation hole includes a tapered hole and an internal hexagonal hole, the tapered hole is arranged downward from the top end of the inclined shoulder part, the internal hexagonal hole is arranged at the bottom of the tapered hole, the cross-section of the internal hexagonal hole is internal hexagonal, and the maximum diameter of the inner hexagonal hole is smaller than the smallest diameter of the tapered hole. The oral implant has good initial stability and high planting success rate, and bacterial sealing of the implant and a base is good, the connection is more stable.
Owner:魏洪武
Direct seeding and interplanting method for gentiana macrophylla
PendingCN113229087AQuality is not affectedClose contactFabaceae cultivationCereal cultivationGentiana macrophyllaBroad beans
The invention discloses a direct seeding and interplanting method for gentiana macrophylla, and belongs to the technical field of agriculture. The direct seeding and interplanting method comprises the following steps that step 1, sowing is carried out; 1.1, seeds are collected, specifically, gentiana macrophylla which grows for more than 3 years is selected as a seed collection field, and the seeds are selected from the end of August to September every year; 1.2, in the sowing period, spring sowing and autumn sowing are selected according to different interplanting crops, the interplanting crops comprise wheat, flax, oilseed rape, corn and broad beans, and the sowing amount is 2-2.5 kg per mu; 1.3, a sowing method comprises the steps that after the crops are normally planted, the gentiana macrophylla seeds are mixed with fine sand or fine cotton soil, uniformly spraying and sowing are carried out, a rake is used for lightly scribing on the ground surface, and the ground surface soil is lightly pat by using a flat-bottom shovel to enable the gentiana macrophylla seeds to be in close contact with the soil; and step 2, management is carried out. By applying the direct seeding and interplanting method for gentiana macrophylla, the planting success rate is increased, meanwhile, the planting cost of the gentiana macrophylla can be greatly reduced, the working procedures of seedling raising and transplanting are eliminated, labor and time are saved, other crops in one season are harvested while the gentiana macrophylla is planted, and economic income is increased.
Owner:INST OF ECONOMIC CROPS & BEER RAW MATERIAL GANSU ACADEMY OF AGRI SCI
Dental implant
The invention relates to a dental implant, comprising an implant body and an abutment connected with the implant body. The peripheral surface of the neck, in contact with soft tissue, of the implant body and abutment is provided with a porous outer layer region; a plurality of spherical cavities are arranged in the porous outer layer region; the mutually contacted ones of the spherical cavities are communicated with each other; all the spherical cavities in contact with the peripheral surface of the neck are opened from the peripheral surface of the neck; the porous outer layer region is provided with a plurality of axial ducts having the bottoms communicated with the spherical cavities in the porous outer layer region and having the tops opened from the surface of the abutment. The structure of the porous outer layer region and pharmaceutical and / or bioactive molecular combination is used herein to generate multiple good effects to promote the occlusion of the soft tissue contact region of the neck of the implant; aesthetic defects caused by movement of the neck of the implant body to the root and peri-implant bone absorption and implant life shortening caused by low binding strength can be avoided; therefore, implanting success rate and aesthetic effect are further increased.
Owner:STOMATOLOGICAL HOSPITAL TIANJIN MEDICAL UNIV
Dental implant with reducing thread
InactiveCN109938855AReduce lossIncrease success rateDental implantsOsteoblastUltimate tensile strength
The invention provides a dental implant with a reducing thread. The dental implant comprises an implant body. At least one continuous thread is arranged from the root to the periphery of the neck of the implant body. The thread pitch of the thread from the root to the neck is gradually reduced, containing grooves are formed between the two side faces of adjacent thread teeth, and the opening widths of the containing grooves are smaller than the groove bottom widths. One thread is adopted, the bone bonding strength of the implant can be improved, the adhesion rate of osteoblast is improved, proliferation and differentiation of the osteoblast implant surface in the early implantation period are obviously promoted, and the planting survival rate is greatly increased.
Owner:JIANGSU TRAUSIM MEDICAL INSTR
Wild ginseng planting method
InactiveCN105103895AHigh seedling rateImprove the success rate of plantingCultivating equipmentsPlant cultivationGerminationGinsenoside
The invention discloses a wild ginseng planting method. The method includes the following steps of (1) land selection, (2) seed selection, (3) germination acceleration, (4) disinfection, (5) sowing, (6) daily management and (7) harvesting. The method totally accords with the growing environment of wild ginseng, no vegetation is damaged, and the environment is not affected. Meanwhile, wild ginseng prepared through the wild ginseng planting method is high in seedling rate, short in growth period, high in medicinal value and good in shape, the shapes of reeds, lines, bodies, tassels and skin are all good, the ginsenoside content is high, and the wild ginseng is pure green and healthy medical and edible dual-purpose high-quality wild ginseng. The planting method has wide development prospects.
Owner:HUICHUN SENLI MOUNTAIN GINSENG IND CO LTD
Composite dental implant and preparation method thereof
PendingCN113476650AInhibit sheddingImprove antibacterial propertiesDental implantsTissue regenerationOsseointegrationBone tissue
The invention discloses a composite dental implant and a preparation method thereof, the composite dental implant comprises a body, the top of the body is provided with a counterbore, the bottom of the body is a cambered surface, the periphery of the bottom end of the body is provided with an external thread, the body is provided with a porous structure, the porous structure is filled with a composite body, the composite body and the body are integrally arranged, the composite body is a biodegradable material carrying bioactive components, and the bioactive components have antibacterial property and bone tissue induced regeneration property. The implant has the advantages of being simple in structure, convenient to prepare, stable in implantation, long in antibacterial effect, capable of effectively accelerating osseointegration and high in implantation success rate.
Owner:JINAN UNIVERSITY
Kelp clamping machine seedling insertion device
ActiveCN106035051BGuaranteed not to damage the seedlingsImprove the success rate of plantingCultivating equipmentsSeaweed cultivationBiology
Owner:OCEAN UNIV OF CHINA
Self-expanding locking interface implant package
The invention provides a self-expanding locking interface implant package. The self-expanding locking interface implant package comprises an implant and an abutment, one end of the implant is provided with an inner concave groove body, an outer convex pipe body is formed at one end of the abutment, an elastic piece, and internally provided with a hole body; the self-expanding locking interface implant package also comprises an embedded body, the embedded body is used for being matched with the hole body in a nested mode, after the outer convex pipe body is elastically deformed in a matching process, and the outer convex pipe body and the inner concave groove body are matched in a nested mode to form an elastic connecting structure; an outer conical surface is formed on an outer side of the embedded body and a corresponding inner conical surface is formed on an inner side of the hole body; and when the inner conical surface is sleeved from a large-diameter end of the inner conical surface to a small-diameter end of the outer conical surface in an axial direction, a size of the outer convex pipe body is gradually expanded in a radial direction, and after the sleeving is completed, the outer convex pipe body and the inner concave groove body are connected in a complementary mode. By means of an elastic nesting fit of the embedded body and the outer convex pipe body, the outer convex pipe body and the inner concave groove body form the complementary concave-convex combined type elastic connecting structure, the abutment can be effectively prevented from disengaging, structural reliability is high, and stability is good.
Owner:JIANGYIN JINTAIKE BIOTECH
Implant tooth structure based on SLM forming and forming method thereof
PendingCN110680530ARelieve painShort treatment cycleDental implantsDental prostheticsIliac screwDental Gingiva
The invention discloses an implant tooth structure based on SLM forming and a forming method thereof. The implant tooth structure comprises a tooth root used for implanting an implant into an alveolarsocket in a later period, a neck part used for making contact with gingiva to play a sealing role after an abutment is implanted in the later period, and a dental crown meshed with normal teeth. Thedental crown and the neck part jointly form an abutment structure of the clinical implant; wherein a counterbore and at least two first positioning pin holes are formed in the abutment structure, anda threaded hole and second positioning pin holes corresponding to the first positioning pin holes are machined in the tooth root; a screw penetrates through the counterbore and then is screwed into the threaded hole, and a positioning pin is installed between the first positioning pin hole and the second positioning pin hole. The invention further provides the forming method of the structure, thestructure obtained through forming greatly improves the initial stability of the implant and shortens the treatment period of a patient, meanwhile, the success rate of implantation is increased, and the pain of the patient is relieved.
Owner:ZHEJIANG UNIV
A preparation method of implant surface with multi-scale porous complex structure
ActiveCN104233318BIncrease surface areaContributes to long-term stabilityProsthesisMicro nanoReduction treatment
The invention provides a method for preparing the surface of an implant with a multi-scale porous complex structure, which is a method for preparing the surface of a titanium-based implant with antibacterial and osteogenic functions. Treated by the method to simulate the morphology environment of new bone formation in the body under physiological conditions, this surface can not only accelerate the osseointegration of the implant surface and contribute to the long-term stability of the implant, but also has significant antibacterial properties, which can inhibit the infection at the initial stage of implantation , can further improve the success rate of planting. The present invention creates a micro-nano composite pure titanium implant surface with both osteogenic and antibacterial properties. It has a three-dimensional multi-scale complex structure implant surface, and the surface has a higher osteogenesis than SLA, which is the most widely used clinically. Activity and excellent antibacterial performance, has a wide range of application prospects. It is of great significance for expanding the indications for oral implants, shortening the course of implant restoration, reducing implant-related infections, and improving the success rate of implants.
Owner:ZHEJIANG UNIV
an oral implant
ActiveCN107811716BImprove initial stabilityImprove the success rate of plantingDental implantsDentistryBiomedical engineering
The invention discloses an oral implant. The oral implant comprises an outer shell body and an implantation hole arranged inside the outer shell body, the outer shell body comprises a cylindrical mainbody part with an external thread, a circular truncated cone-shaped inclined shoulder part arranged on the top of the main body part, and a hemispherical spherical bottom part disposed at the bottomof the main body part. A first thread region and a second thread region are disposed on the main body part from the top to the bottom, and the pitch of the first thread region is smaller than the pitch of the second thread region. The implantation hole includes a tapered hole and an internal hexagonal hole, the tapered hole is arranged downward from the top end of the inclined shoulder part, the internal hexagonal hole is arranged at the bottom of the tapered hole, the cross-section of the internal hexagonal hole is internal hexagonal, and the maximum diameter of the inner hexagonal hole is smaller than the smallest diameter of the tapered hole. The oral implant has good initial stability and high planting success rate, and bacterial sealing of the implant and a base is good, the connection is more stable.
Owner:魏洪武
Fixtures, jaw trackers and implant navigation systems for oral cavity
ActiveCN108553186BReduce the risk of infectionNot easy to looseDental implantsSurgical navigation systemsSurgical infectionDentistry
Owner:SUZHOU DIKAIER MEDICAL TECH
Alfalfa planting method adopting full-biodegradable mulching film mulching
PendingCN113207560AImprove the success rate of plantingReduce the impactHops/wine cultivationClimate change adaptationLivestockAgricultural engineering
The invention provides an alfalfa planting method adopting full-biodegradable mulching film mulching. The method adopts planting, field management and cutting, and comprises the steps of seed selection, irrigation, base fertilizer application, soil preparation, narrow-row hole sowing, field management and harvesting. The full-biodegradable mulching film comprises the following components in parts by weight: 100 parts of full-biodegradable resin, 20-40 parts of modified starch and 30-50 parts of modified calcium carbonate, and the performance of the full-biodegradable mulching film meets the regulations of the national standard GB / T35795-2017 full-biodegradable mulching film for agricultural uses, the method can solve the problem that a biodegradable mulching film cannot give consideration to the degradation rate and the mechanical strength at the same time while the problems that the success rate of alfalfa planting in the northwest arid region is low and film-mulching planting film fragments are mixed into alfalfa are solved, and damage to livestock eating by mistake is avoided.
Owner:河南青源天仁生物技术有限公司 +1
Bionic dental implant and preparation method thereof
InactiveCN102861357BImprove wear resistanceFlexiblePharmaceutical delivery mechanismTissue regenerationBionicsPolyethylene glycol
Disclosed is a bionic tooth implant, which comprises a titanium base (1), a porous titanium dioxide layer (2) permeated with polyurethane and a polyurethane layer (3) as bionic tooth peridontium. The porous titanium dioxide layer (2) permeated with polyurethane is located between the titanium base (1) and the polyurethane layer (3). The preparation method of the implant comprises: (1) the titanium base (1) is treated with acid, and then micron-sized titanium dioxide powder is deposited layer-by-layer onto the surface of the titanium base (1) using an electron beam melting technology to form a porous titanium dioxide layer; (2) a polyurethane prepolymer is prepared; (3) the polyurethane prepolymer is coated on the porous titanium dioxide layer, then the polyurethane prepolymer permeates into the holes of the titanium dioxide layer under vacuum conditions; (4) a composite material obtained in step (3) is soaked in a solution of chain extender, and a catalyst is added for reaction, after the reaction is completed, the composite material is taken out and dried.
Owner:SICHUAN UNIV
Agricultural mechanized production method
InactiveCN106613183ASave farming energyReduce planting labor costsSeed and root treatmentPlant cultivationAgricultural engineeringEngineering
The invention discloses an agricultural mechanized production method. The agricultural mechanized production method comprises the following steps: a) selecting the loosening permeable soil; b) fertilizing, seeding, earthing and rolling the loosening soil after the strip tillage; c) distributing the seeds to be strip-shaped along the length direction of the strip tillage during the seeding, wherein the width of the strip tillage is 1 / 3-1 / 8 of the seeding line spacing, and the depth of the strip tillage is 8-15 cm. The agricultural mechanized production method is capable of greatly saving the energy consumption of the tillage, reducing the labor cost of the planting, and directly improving the economic level, and the planting success rate is high.
Owner:HECHI TECH DEV CENT
A method of improving the success rate of perennial forage corn establishment
ActiveCN109105170BAbundant rainfallRich storage nutritionPlant cultivationCultivating equipmentsBiotechnologyHigh survival rate
Owner:SICHUAN AGRI UNIV
Crop planting service method and device and storage medium
InactiveCN110866171AImprove the success rate of plantingImprove service capabilitiesData processing applicationsWeb data queryingAgricultural engineeringComputer science
The invention provides a crop planting service method and device, and a storage medium. The crop planting service method comprises the steps of inputting a crop name and an initial planting date; searching crop planting information corresponding to the crop name in a pre-established crop information database, wherein the crop information database comprises crop names and crop planting information,the crop names and the crop planting information are in one-to-one correspondence, and the crop planting information comprises planting durations corresponding to a plurality of planting stages and planting matters needing attention corresponding to the planting stages; and obtaining prompt time node information corresponding to each planting stage according to the initial planting date and the planting durations corresponding to the plurality of planting stages, and sending corresponding planting matters needing attention to a specified client terminal according to the prompt time node information corresponding to each planting stage. The crop planting service method can provide planting guidance for planters in different planting stages, can improve the service effect, and can help theplanters to improve the planting efficiency.
Owner:梁燕英
Dental implant maxillary sinus lift reamer
ActiveCN107174362BRequirements for realizing local reamingImprove the success rate of plantingDental implantsEngineeringBone quality
The invention relates to an osteotome sinus floor elevation reamer for dental implants. The reamer comprises a drill pipe, wherein a power connector is arranged at the tail end of the drill pipe, a hole is formed in the side surface of the front end of the drill pipe, a telescopic rod is arranged in the hole, the outer end of the telescopic rod penetrates out of the side surface of the drill pipe, abrasion patterns are arranged on the outer end surface of the telescopic rod, the inner end of the telescopic rod is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a rotating disc, the rotating disc is connected with a worm gear through a rotating shaft, the worm gear is meshed with a worm, one end of the worm penetrates out of the dill pipe, and a counterbore is formed in the end. The reamer has the obvious advantages as follows: the telescopic rod can stretch or retract, the local reaming requirement of the tail ends of drilled holes can be met, more bone substances can be arranged, the implanting success rate is high, and the reamer is safe.
Owner:孙杜斌
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