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51results about How to "Make up for the damage" patented technology

Method for preparing tremella beverage

The invention relates to a method for preparing beverage, belonging to the field of food processing. Tremella, pears and medlar are mainly used as raw materials. The implementation process comprises that the tremella is pulped, the pears are cut into pieces, and the tremella pulp and the pear pieces are mixed with the medlar, crystal sugar and other additives, the obtained mixture is steamed and cooked, and the obtain product is sterilized under high temperature and is packaged under aseptic condition. The tremella pear beverage prepared through the method has the functions of benefiting vital energy and clearing bowels, replenishing vital essence and removing heat, promoting production of body fluid and nourishing lung, and relieving cough and reducing sputum, is suitable for people at any age and has particular healthcare efficacy to patients suffering from respiratory system diseases.
Owner:TIANJIN XINHENG EXPORT & IMPORT TRADE

Method for extracting and separating cellulose from biomass solid waste

The invention discloses a method for extracting and separating cellulose from biomass solid waste. The method comprises the following steps of: 1) crushing the extracting and separating cellulose from biomass solid waste into particles; 2) filling in a pressure vessel; 3) introducing high pressure saturated vapor to moisten the material; 4) introducing stronger ammonia water and stabilizing at high temperature and high pressure; 5) quickly reducing to normal pressure, recovering ammonia from a feed liquid, performing solid-liquid separation on the feed liquid, and drying to obtain a dried material; 6) adding an ionic liquid into the dried material, stirring for dissolution, and separating to obtain a cellulose solution; and 7) adding deionized water into the cellulose solution to obtain a precipitate, namely the cellulose. The recovered ionic liquid is repeatedly used for 20 times. The invention has the advantages that: the characteristic that the biomass solid waste contains rich cellulose is utilized, an ionic liquid separation and extraction system is constructed, and high purity cellulose is separated and extracted in an environment-friendly way, so that the biomass solid waste is recycled, land resources are saved, the resource utilization efficiency is improved and an obvious economic benefit can be achieved.
Owner:AOWEI TIANJIN ENVIRONMENTAL PROTECTION TECH

Anti-freezing fermented frozen dough containing pentesan and lipase and its producing method

The present invention belongs to the field of food processing technology, and the anti-freezing fermented frozen dough containing pentosan enzyme and lipase includes the following steps: compounding solution with pentosan enzyme, lipase and yeast and activating the solution in culture tank; mixing flour, cane sugar, salt, milk powder, shortening oil, guar gum or carboxymethyl cellulose or carob gum, monoglyceryl diacetate tartarate and water and kneading; adding the activated solution via stirring; kneading to obtain dough, separating the dough, kneading, letting stand and freezing to form the anti-freezing fermented frozen dough. The present invention provides one kind of enzyme preparation comprising pentosan enzyme and lipase and the enzyme preparation can connect the gluten protein molecules to strengthen the gluten, increase the specific volume of the frozen dough, lower the surface tension, raise stability, increase fine bubble inside dough and improve texture and structure of bread.
Owner:JIANGNAN UNIV

Isolation structure and formation method thereof

An isolation structure and a formation method thereof are provided. The formation method of the isolation structure comprises the following steps: providing a semiconductor substrate, wherein the surface of the semiconductor substrate is provided with a mask layer; etching the mask layer and the semiconductor substrate and forming a groove in the semiconductor substrate; forming a second dielectric layer in the groove by utilizing fluid chemical vapor deposition (FCVD) process, wherein the second dielectric layer fills partial space at the bottom portion in the groove; and forming a third dielectric layer in the rest space at the upper portion in the groove, the third dielectric layer being located above the second dielectric layer. By utilizing the method in the invention to fill the groove, the appearance of cavities can be effectively prevented, and filling quality of the high aspect ratio groove is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Automatic-tracking-based profile measurement system and method for free-form-surface optical element

ActiveCN105674914ASolve the problem that the large PV value cannot be measuredMake up for the damageUsing optical meansDual frequencyFree form
The invention discloses an automatic-tracking-based profile measurement system and method for a free-form-surface optical element. The system comprises a motion module, a position servo module and a dual-frequency laser interferometer. According to the invention, a profile of a measured optical element is obtained by fitting by using a measurement method of automatic probe tracking, so that a problem that the PV value can not be measured because the probe can not move according to the existing measurement method can be solved effectively. Meanwhile, with a color confocal measuring principle, the measurement precision and the resolution ratio can reach the nanometer scale and the measurement range can reach 10mm. Therefore, problems that the measured optical element may be damaged by the existing probe, the precision is low, and the range is limited in the prior art can be solved.
Owner:ZHEJIANG UNIV

Expansible rehumidified adhesive and its preparing method

The invention disclosed a kind of inflatable re-wet mastic the ingredient of which is cross-link copolymer (the solid content of the copolymer is 20-50%). The copolymer refers to the cross-link copolymer of non-ion metamer and positive ion metamer, the cross-link copolymer of non-ion metamer and negative ion metamer or the mixture of the two copolymers, the aqueous mediator and the oily mediator. The mastic in the invention has good gluing ability at low temperature; it also has strong initial cohesity, quick moistening back-glue speed; it takes less than 35 seconds to reach strong gluing ability; it has very good stability and expandibility, the volume can be expanded by 25 times so it can compensate the damage because of the coarse surface; it can be used in various aspects such as wall paper, ads, labels, stamps, envelop sealing and so on.
Owner:SOUTH CHINA UNIV OF TECH

Preparation method of rhizoma gastrodiae freeze-dried decoction pieces

The invention discloses a prescription and a preparation method of rhizoma gastrodiae freeze-dried decoction pieces. The rhizoma gastrodiae freeze-dried decoction pieces are processed by carrying outfreeze-drying on fresh rhizoma gastrodiae. The prescription and the preparation method have the advantage that the fresh rhizoma gastrodiae is freeze-dried to obtain the special decoction pieces. Thewhole preparation process is simple and controllable, and industrial production can be realized. The obtained freeze-dried decoction pieces can be directly taken, the pharmacology and medical efficacies of rhizoma gastrodiae can be exerted to the maximum, in addition, the rhizoma gastrodiae freeze-dried decoction pieces processed with honey provided by the invention are good in stability, and theactive ingredients are kept to be intact.
Owner:江西本草天工生物技术有限公司

Seedling hardening method for pepper seedlings

The invention discloses a seedling hardening method for pepper seedlings. The method comprises the following steps of 1, seedling hardening medium preparation; 2, rooting nutrient solution preparation; 3, seedling transplanting; 4, management after transplanting. All the steps of the method are matched scientifically and reasonably, the method is in accordance with the growth rule of the pepper seedlings, the management mode is more precise and finer, the problem that the seedlings are prone to be damaged through a traditional mode is reduced, and the method has good universality to the pepper seedlings, and has higher guidance value. The hardened pepper seedlings are thick and solid in root and stem, the internal nutrient content is high, the enzymatic activity relevant to resistance is remarkably improved, the survival rate of the hardened seedlings is 99% or above, and the survival rate of the planted hardened seedlings reaches 98% or above; finally, the quality of bred pepper fruits is improved well, the vitamin C content in the fruits is increased by 20% to 25%, the calcium element content is increased by 20% to 30%, the acre yield of the fruits is increased by 15% to 20%, and good economic benefits are achieved.
Owner:固镇县华原家庭农场

Modified bamboo fiber reinforced polypropylene-based high-strength flame-retardant cupboard board and preparation method thereof

The invention discloses a modified bamboo fiber reinforced polypropylene-based high-strength flame-retardant cupboard board. The bamboo-plastic board is prepared from, by weight, 50-60 parts of modified bamboo fibers, 5-10 parts of basalt fibers, 30-40 parts of polypropylene chips, 3-5 parts of maleic anhydride grafted polypropylene, 0.2-0.5 part of dopamine monomer, 1-2 parts of hydrogenated castor oil, 0.1-0.2 part of antioxidant, 5-8 parts of ionic liquid, 1-2 parts of zinc methacrylate and 15-20 parts of deionized water.
Owner:ZBOM HOME COLLECTION CO LTD

Loader shovel tooth and production method thereof

The invention discloses a loader shovel tooth comprising an upper tooth part and a lower tooth part; the upper tooth part comprises a tooth top and an upper tooth handle which are integrally molded; the tooth top and the upper tooth handle are arranged in a step shape; the upper tooth handle is located above the tooth top; and the tail end of the tooth top is welded and connected with the top end of a lower tooth handle. The invention also discloses a production method of the loader shovel tooth. Defects in the prior art can be overcome, and the loader shovel tooth is conveniently mounted and used in a use field and is good in wear resistance.
Owner:山东明宇重工机械有限公司

Front passivation process matching alkali polishing selective emitter

The invention relates to the field of single-crystal PERC back etching alkali polishing process and discloses a front passivation process matching an alkali polishing selective emitter. In an oxidation process before an alkali polishing process, the oxygen layer deposition with high-temperature hot oxygen and a slot cooling rate are combined, which means that a process condition for depositing anoxide layer comprises a deposition temperature of 790 to 810 DEG C, a pressure of 100 to 120 mbar, an oxygen flow 3000 to 3500 sccm and a time 25 to 35 min, the cooling process has three steps, and then a boat is taken out of a tube and an existing process is employed. In the alkali polishing process coating process, a layer of silicon-rich film is separately added, that is, a first layer of silicon-rich film is deposited by PECVD.
Owner:SHANXI LUAN PHOTOVOLTAICS TECH

Forming method of semiconductor structure

The invention provides a forming method of a semiconductor structure. The method comprises the steps that a semiconductor substrate is provided; a fin is formed on the surface of the semiconductor substrate; an isolating layer is formed on the surface of the semiconductor substrate; the surface of the isolating layer is lower than the top surface of the fin and covers one part of side wall of the fin; a pseudo gate structure stretching across the fin is formed on the isolating layer and covers one part of side wall and the top part of the fin; a hard mask layer is arranged at the top part of the pseudo gate structure; side walls are formed on the side wall surfaces of the pseudo gate structure and the hard mask layer; the fin at two sides of the pseudo gate structure is etched to form grooves; a protective layer is formed on the surfaces of the grooves and the isolating layer; the surface of the protective layer is higher than the top surface of the fin to expose one part of pseudo gate structure; supplement side walls are formed on the side walls of the exposed pseudo gate structure; and the protective layer is removed. By the method, the performance of the formed semiconductor substrate can be improved
Owner:SEMICON MFG INT (SHANGHAI) CORP

Preparation method and applications of anti-pseudorabies virus pig origin monoclonal antibody

The invention belongs to the field of gene engineering, and discloses a preparation method and applications of an anti-pseudorabies virus pig origin monoclonal antibody. The preparation method comprises following steps: positive hybridoma cells capable of realizing stable secretion of anti-pseudorabies virus (PRV) glycoprotein monoclonal antibodies are screened; secretion of the monoclonal antibodies is carried out; enlarge culture is carried out; enrichment, purification, and sequencing are carried out; design of corresponding specific primers is carried out, pig origin modification is carried out, cloning is carried out using a virus gene carrier or a non-virus gene carrier (including plasmid DNA and minicircle DNA), large scale production of different pig origin monoclonal antibodies iscarried out using insect cells or CHO cell fermentation, or the above pig origin monoclonal antibody gene carrier is introduced into pigs; injection, or feeding through nasal feeding and spraying areadopted for neutralization of pseudorabies virus with the anti-pseudorabies virus pig origin monoclonal antibodies, so that passive immunity is adopted for purifying of pseudorabies virus positive pig farms, and preventing and treating of porcine pseudorabies.
Owner:SHENZHEN JASON INTELLIGENT BIOTECH CO LIMLTED PRC

Soybean health care ice cream with low fat, high expansion rate and high stability and preparation method thereof

The invention discloses soybean health care ice cream with low fat, high expansion rate and high stability and a preparation method thereof, and belongs to the technical field of ice cream preparation. The method comprises the following steps: performing ultrahigh-pressure homogenization on soybean protein isolate and compounding with hydroxylation modified water-soluble phospholipid to form a high-emulsibility compound of soybean protein isolate and phospholipid; adding the compound into ice cream to partially substitute milk powder. The ice cream is specifically prepared from the following components: 5-6% of compound of soybean protein isolate and phospholipid, 6-9% of skim milk powder, 10% of cream, 13-15% of sucrose, 0.11% of emulsifier, 0.06% of stabilizer, and the balance of water.The obtained ice cream product has an expansion rate of 74% and good melting resistance; hardness of the ice cream is reduced, the formation of ice cream in a shearing-freezing process is promoted, and the ice cream product has good mouthfeel. The method solves the problem that application of common soybean protein isolate in ice cream is influenced by the poor emulsibility, effectively improves the quality of low-fat ice cream and makes up for the damage of ice cream structure caused by low fat content.
Owner:黑龙江省绿色食品科学研究院

Kidney-tonifying health-care wine

The invention relates to kidney-tonifying health-care wine, which is prepared by adopting the following steps of: cleaning white paeony root, pawpaw, angelica root, ginseng, angelica sinensis, pilos antler and liquorice and soaking in 55-degree white spirit; and hermetically placing in a vessel, shaking for 3 minutes everyday and filtering after one month. The health-care wine disclosed by the invention has the functions of nourishing yin and tonifying kidney and can remedy damages to the body caused by kidney deficiency.
Owner:潘亚琴

Method for preparing acrylic fibers with high water absorptivity and moisture absorptivity

InactiveCN102733169AAbsorbentHas the ability to absorb moistureFibre typesPotassium hydroxideReaction temperature
The invention relates to a method for preparing acrylic fibers with high water absorptivity and moisture absorptivity. The method is characterized by comprising the following steps: directly adding acrylic fibers into a mixed solution made of sodium hydroxide, formaldehyde and hydrazine hydrate, or potassium hydroxide, formaldehyde and hydrazine hydrate; performing hydrolysis acetalation crosslinking for 50-200 minutes at the reaction temperature of 70-170 DEG C; and cleaning and drying so as to obtain the acrylic fibers with high water absorptivity and moisture absorptivity. When the reaction temperature is lower than 100 DEG C, the reaction can take place in an open or closed container; and when the reaction temperature is higher than 100 DEG C, the reaction can take place only in a closed pressure container. According to the method, the acrylic fibers can be endowed with high water absorptivity and moisture absorptivity only through a simple acrylic fiber hydrolysis acetalation crosslinking technology, the production technology is simple, the equipment investment is small, the production cost is low, and the industrialization can be realized easily.
Owner:SHANDONG UNIV OF TECH

Method for epitaxially growing GeSi quantum dots

ActiveCN111834206AAvoid the disadvantage of excessive feature sizeAvoid damageSemiconductor/solid-state device manufacturingNanoopticsQuantum dotPatterned substrate
The invention provides a method for epitaxially growing GeSi quantum dots. The method comprises the following steps of: 1) preparing a truncated inverted pyramid pattern on a silicon substrate by adopting a photoetching and wet etching combined technology to obtain a patterned substrate, wherein the crystal faces of the four side faces of the truncated inverted pyramid are (111) faces; 2) removingthe mask subjected to wet etching on the patterned substrate, and cleaning the patterned substrate; 3) placing the patterned substrate in an epitaxial growth device, and directly carrying out heteroepitaxy on GeSi quantum dots on the truncated inverted pyramid patterned substrate; and 4) epitaxially growing a silicon cover layer on the GeSi quantum dots. According to the method provided by the invention, the defects that the surface of the substrate is damaged by dry etching and the feature size of grown quantum dots is too large due to the fact that the feature size of the patterned substrate prepared by wet etching is too large are avoided; and the quantum dots grown by adopting the method provided by the invention are consistent in size, and the positions of the quantum dots are highlysymmetrical, so that quadruplicated frequency of quantum dot growth is realized.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI

Method for calibrating rock creep damage and fracture surface by using high-density resistivity

The invention provides a method for calibrating rock creep damage and fracture surface by using high-density resistivity. The method comprises the following steps: S1, drilling; S2, mounting an electrode wire; S3, performing vacuum water saturation treatment; S4, performing surface water sealing treatment; S5, mounting a strain gauge; S6, connecting the electrode wire with a high-density resistivity instrument; S7, placing on a press machine; S8, measuring initial resistivity data when the instrument is not loaded; S9, starting the press machine; S10, storing the data in real time until a rocktest piece is crushed; S11, processing the data; and S12, comprehensively calibrating the development conditions of the rock creep damage and potential fracture surface according to an obtained resistivity-time curve, a resistivity-strain curve, a stress-strain curve, a time-strain curve and a rock apparent resistivity profile map. According to the method provided by the invention, the rock testpiece is measured by adopting the high-density resistivity instrument, and the defects of relatively large errors, few measuring points, poor intuition and the like of experimental data of a dipolar method and a quadrupole method are overcome.
Owner:NORTHEASTERN UNIV

Preparation method of nano-cellulose ammonia gas induction aerogel

The invention provides a nano-cellulose ammonia gas induction aerogel with a high specific surface area, and a preparation method thereof. The preparation method comprises the following steps: (1) pretreating eucalyptus sulfate bleached pulp to prepare a nano-cellulose hydrogel; (2) adding a polyvinyl alcohol solution into the prepared nano-cellulose hydrogel to prepare a polyvinyl alcohol / nano-cellulose composite hydrogel; (3) fixing a radish red pigment on fibers of the polyvinyl alcohol / nano-cellulose composite hydrogel in situ to prepare a polyvinyl alcohol / radish red pigment / nano-cellulose composite hydrogel; and (4) preparing the polyvinyl alcohol / radish red pigment / nanocellulose composite aerogel by adopting a vacuum freeze drying method. According to the invention, the adsorption capacity to ammonia gas is greatly enhanced, and the response time is shortened. The pH color responsiveness of the radish red pigment is utilized to achieve a color indication effect on the existence of the ammonia gas, so that the ppm-level ammonia gas can be effectively monitored, and the method has good practicability in the fields of food freshness indication and the like.
Owner:TIANJIN UNIV OF SCI & TECH

Seedling exercising method for improving vigor of cucumber seedlings

The invention discloses a seedling exercising method for improving the vigor of cucumber seedlings. The seedling exercising method comprises the following steps of 1 seedling exercising matrix preparing, 2 rooting nutrient solution preparing, 3 seedling transplanting and 4 managing after transplanting. According to the method, all the steps are scientifically and reasonably matched and accord with the growth rules of the cucumber seedlings, the management mode is more precise and more careful, the problem that the seedlings are prone to be damaged in a traditional mode is solved, and good universality and a greater guide value are achieved on the cucumber seedlings; the cucumber seedlings subjected to seedling exercising are thick and strong in root and stem, more nutritional substances are contained in the cucumber seedlings, the enzymatic activity related to the resistance is significantly promoted, the survival rate of the exercised seedlings reaches 99% or above, the survival rate of the seedlings which are planted in a field after being exercised reaches 98% or above, the quality of bred cucumber fruits is well promoted, the vitamin C content in the fruits is increased by 60%-70%, the calcium element content in the fruits is increased by 25%-35%, the fruit yield per mu is increased by 15%-20%, and very good economic benefits are achieved.
Owner:固镇县华原家庭农场

Method of producing antifreeze fermented frozen waxy wheat dough containing recombinant lipase and pentosanase

The invention relates to a method of producing antifreeze fermented frozen waxy wheat dough containing recombinant lipase and pentosanase, which belongs to the technical field of food processing and includes: respectively preparing recombinant lipase, pentosanase and yeast into solution, placing the solution into an incubator for activation; adding icy water into well mixture of waxy wheat flour, high gluten flour, granulated sugar, salt, milk powder and shortening prior to kneading; adding the activated solution of the recombinant lipase, the pentosanase and the year; mixing and kneading to obtain dough; and slicing, rounding and allowing the dough to loosen and shape, and obtaining a finished product after freezing. The invention provides a bio-enzyme preparation from recombinant lipase and pentosanase, destruction of the gluten in the frozen dough by ice crystal is repaired, gluten protein molecules in the dough are interconnected, the strength of the dough is enhanced further, specific volume and stability of bread made of the frozen waxy wheat dough are enhanced, and texture and taste of final products are improved.
Owner:JIANGNAN UNIV +1

Glossy privet fruit health wine with functions of liver tonifying and kidney tonifying

The present invention relates to a glossy privet fruit health wine with functions of liver tonifying and kidney tonifying. According to the glossy privet fruit health wine, 30 parts by weight of glossy privet fruit, 15 parts by weight of dodder, 13 parts by weight of common achyranthes, 17 parts by weight of medlar, 10 parts by weight of semen allii tuberosi, and 15 parts by weight of flastem milkvetch seed are respectively subjected to washing and open-air drying, and then are cut into thin sheets; the thin sheets are dried and mixed to obtain the prepared drug; the prepared drug are added to 10 kg of a yellow wine, and 100 g of honey and 150 g of candy sugar are added to the yellow wine; soaking is performed for 1-2 months at a room temperature; a molecular sieve is adopted to filter to obtain the filtrate; and the resulting filtrate is subjected to filling to obtain the glossy privet fruit health wine with functions of liver tonifying and kidney tonifying. The glossy privet fruit health wine of the present invention has characteristics of simple preparation method, sweet taste, and good effect, and has functions of liver tonifying and kidney tonifying. With long-term drinking of the health wine of the present invention, liver and kidney injury can be tonified from inside to outside so as to provide health bodies for people.
Owner:江月锋

Sprouted millet foods and preparation method thereof

InactiveCN109259075AIncrease appetiteIncrease active enzyme ingredientsDough treatmentDeep-fried productsNutritive valuesDigestion
The invention discloses sprouted millet foods which are prepared from the following raw materials in parts by weight: 10-70 parts of sprouted millet powder, 10-30 parts of wheat flour, 5-20 parts of sugar, 2-10 parts of oil, 0-2 parts of yeast powder and 0.5-2 parts of salt. The invention also provides a preparation method of a product. The preparation method is simple and convenient and is liableto operate. In the technical scheme of the invention, the sprouted millet foods are capable of strengthening stomach, promoting digestion and boosting appetite, is fluffy and fine in taste and is notadded with any edible pigment and preservative, a finished product keeps specific nutritive values of millets and millet sprouts, has rich nutrition and health care efficacy, improves the nutritionalfunctions of the traditional millet food product and is beneficial to filling up the blank of a market of a relevant product and popularizing and applying a high value-added product.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Low-temperature extrusion-modified potato starch for improving quality of wholewheat deep-fried dough sticks and preparation method and application of low-temperature extrusion-modified potato starch

The invention relates to the technical field of food, in particular to low-temperature extrusion-modified potato starch for improving quality of wholewheat deep-fried dough sticks as well as a preparation method and application of the low-temperature extrusion-modified potato starch. The invention provides a preparation method of low-temperature extrusion-modified potato starch for improving the quality of wholewheat deep-fried dough sticks. The preparation method comprises the following steps of carrying out low-temperature extrusion modification on potato starch to obtain the low-temperatureextrusion modified potato starch. The low-temperature extrusion-modified potato starch is obtained through a physical modification method and applied to quality improvement of wholewheat deep-fried dough sticks, and the product has good edible quality, is low in cost and safe to eat, and the dosage of chemical reagents is greatly reduced.
Owner:NANJING UNIV OF FINANCE & ECONOMICS

Semiconductor structure and forming method thereof

The embodiment of the invention provides a semiconductor structure and a forming method thereof, and the method comprises the steps: providing a substrate and an insulating layer which are stacked, and enabling the interior of the substrate to be provided with a plurality of storage node contact structures at intervals; a latticed upper electrode layer is formed on the surface of the insulating layer, a plurality of meshes penetrating through the upper electrode layer are formed in the upper electrode layer, and the orthographic projection of each mesh on the insulating layer and the orthographic projection of one storage node contact structure on the insulating layer have an overlapping area; forming a dielectric layer on the side wall of the mesh; removing the insulating layer exposed from the meshes to expose the storage node contact structure; lower electrode layers are formed in the meshes, the lower electrode layers are located on the side, away from the upper electrode layer, of the dielectric layer and make contact with the exposed storage node contact structure, and the lower electrode layers in the different meshes are electrically insulated from one another. According to the semiconductor structure forming method provided by the embodiment of the invention, the area of the capacitor electrode plate of the semiconductor structure can be increased.
Owner:CHANGXIN MEMORY TECH INC

U-shaped bone nail having muscle/bone induction activity and realizing flexible connection after degradation

The invention discloses a U-shaped bone nail having muscle / bone induction activity and realizing flexible connection after degradation. The U-shaped bone nail is a U-shaped structural member composedof two nail feet and a nail foot connector, and a composite bar comprises titanium alloy spheres, a carbon fiber bundle, a niobium wire layer, a magnesium alloy layer, a zinc alloy layer, a nail footcoating and a nail foot connector coating. The U-shaped bone nail has enough rigidity and strength at the initial stage of an operation; osteoinductive activity is obtained at the contact positions ofthe two nail feet and a bone; and muscle growth inductive activity is achieved at the contact positions of the connector of two nail feet and muscles. After the coatings, zinc alloy and magnesium alloy are degraded, a healed skeletal joint still has high-strength flexible connection in virtue of the carbon fiber bundle and the niobium wire sleeving the carbon fiber bundle; and the titanium alloyspheres at the two ends can fix the carbon fiber bundle, so it is guaranteed that the skeletal joint cannot crack when the skeletal joint is impacted by external force. The invention also provides a preparation method of the U-shaped bone nail having muscle / bone induction activity and realizing flexible connection after degradation. The method has the characteristics of easiness in operation and convenience in industrial production.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Split drilling and milling pipe cutting machine

The invention discloses a split drilling and milling pipe cutting machine. The split drilling and milling pipe cutting machine comprises a drilling and milling module, a main driving module, multipleroller modules, multiple bracket modules, a turning tool module, a turning tool main driving module and a fixing module. The drilling and milling module comprises a drilling and milling lead screw, afirst hydraulic motor, a drilling and milling baseplate, a drilling and milling main shaft, a drilling and milling thread and a drilling and milling box. The split drilling and milling pipe cutting machine is characterized in that the multiple bracket modules and the multiple roller modules are respectively mounted in set positions of the fixing module. The drilling and milling module and the maindriving module or the turning tool module and the turning tool main driving module are mounted in set positions of the fixing module. The fixing module comprises a left fixed base, a right fixed base, a left movable base and a right movable base; and the left fixed base and the right fixed base are respectively mounted at the front ends of the left movable base and the right movable base. The pipe cutting machine can meet explosion-proof requirements of oil and gas transmission pipes, can be quickly fixed on the pipes, and has the advantages of low friction coefficient, stable work and no noise.
Owner:CHINA SHIPBUILDING IND (SHENYANG) LIAOHAI OIL TRANSPORTATION EQUIP CO LTD +1
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