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93results about How to "Inhibition of development" patented technology

A Structural Body, a Method for Forming a Structural Body, an Apparatus for Forming a Structural Body, a Method for Reading a Structural Color and/or Diffraction Light, and a Truth/False Discriminating Method

Decoration of a material is enabled with a high degree of recycling properties while satisfying the requirements for putting a structural color into practical use on the industrial scale. Furthermore, whether an object is genuine or not can be verified easily, and reusing by peeling as in the case of a hologram seal is prevented.A cavity 12 having a periodic structure 13 causing optical diffraction is formed in the inside of a substrate 11, and a periodic structure 15 causing optical diffraction is formed on part or the whole of the substrate 11. These cavity interface periodic structure 13 and the substrate surface periodic structure 15 have a regular arrangement developing a structural color. In addition, by bringing a functional material to be in contact with the substrate surface periodic structure 15, development of a structural color by the substrate surface periodic structure 15 is suppressed, thereby enabling a structural color developed by the cavity interface periodic structure 13 to be read.
Owner:TOYO SEIKAN KAISHA LTD

Magnetic mono-component toner for developing electrostatic latent image and image forming method

The present invention provides a magnetic mono-component toner which can suppress a selection development on a latent image carrier and can maintain favorable image properties for a long period by using a toner having the coarse powder distribution (S) within a given range in a jumping developing method and an image forming method which uses the toner. In the toner used in the jumping developing method which develops an electrostatic latent image formed on a latent image carrier using a developer carrier, the toner includes toner particles which contain at least a binding resin and a magnetic powder, and the coarse powder distribution (S) of the toner particles satisfies a following formula (1). Coarse powder distribution (S)=(50−A) / 2≧17(volume % / μm)   (1) (wherein, A is a volume % of the coarse powder having particle sizes larger than D50 based on volume by 2 μm or more)
Owner:KYOCERA DOCUMENT SOLUTIONS INC

Control apparatus for internal combustion engine and control method therefor

In control apparatus and method for an internal combustion engine, a first cylinder group in which both of intake and exhaust valves of each of engine cylinders thereof are controllably stopped is provided, second cylinder group in which a lift of the intake valve of each of the engine cylinders thereof is variably controlled is provided, and the lift of the intake valve of each of the engine cylinders of the second cylinder group is controlled n order for an engine torque when the intake and exhaust valves of each of the cylinders of the first cylinder group are controlled to be stopped to be approximately equal to the engine torque by means of the first cylinder group and the second cylinder group before the intake and exhaust valves of each of the cylinders of the first cylinder group are controlled to be stopped.
Owner:HITACHI LTD

Water-based metal antirust paint and preparation method thereof

The invention discloses water-based metal antirust paint. The water-based metal antirust paint is prepared from, by mass, 35-45 parts of pigment, 8-15 parts of filler, 8-15 parts of corrosion inhibitors, 10-20 parts of deionized water, 15-25 parts of silicone acrylic emulsion, 0.1-0.2 part of a dispersing agent, 0.1-0.2 part of a flatting agent, 2-5 parts of an adhesive force promoting agent, 1-3 parts of film-forming aiding agent, 0.1-0.3 part of surfactant OP-10, 0.1-0.2 part of a defoaming agent and 0.05-0.1 part of bacteriacide. The invention further discloses a preparation method of the water-based metal antirust paint. The water-based metal antirust paint solves the problems that water-based metal antirust paint used in the current market is poor in corrosion resistance and adhesive force, slow in drying, poor in early-stage water resistance and high in cost.
Owner:JINAN GUANGDA CASTING MATERIAL CO LTD

Orange biological preserving agent based on yeast, sodium bicarbonate and elicitor activity

The invention discloses an orange biological preserving agent based on yeast, sodium bicarbonate and elicitor activity, composed of cryptococcus laurentii suspension, rhodotorula glutinis suspension, rhodosporidium toruloides suspension, sodium bicarbonate, auxin, salicylic acid and water. The preserving agent has 1*1010-1*1012 cryptococcus laurentii cells, 1*1010-1*1012 rhodotorula glutinis cells, 1*1010-1*1012 rhodosporidium toruloides cells, 5-50 grams of sodium bicarbonate, 10-400mg of auxin, 1-100mg of salicylic acid and the reminder consisting of water per liter of the preserving agent. The accession number of cryptococcus laurentii is CGMCC No.3590, the accession number of rhodosporidium toruloides is IMI 394084, and the accession number of rhodotorula glutinis is CGMCC No.3589. The orange biological preserving agent disclosed in the invention can control orange postharvest diseases without using chemical bactericides.
Owner:ZHEJIANG UNIV

Plant growth and development inhibitor and application thereof

The invention discloses a plant growth and development inhibitor. The plant growth and development inhibitor comprises the following components in percentage by mass: 0.1 to 40 percent of plant growth regulator and the balance of water, wherein the plant growth regulator comprises glyphosate. The invention also discloses application of the plant growth and development inhibitor in treatment of pollution of platanus acerifolia fruit fur or populus sp. fruit fur. By combining the plant growth and development inhibitor with a punching bag infusion method, fruit fur pollution is treated, effects can be achieved when the inhibitor is used 15 days later, the growth and the development of female fruits which are grown in the same year are inhibited, fruit spheres are shrunk, and partial fruit spheres fall; and the development of the fruits is inhibited, the fruit fur is nearly not developed, and the control rate can reach about 80 percent, so that the inhibitor has a remarkable effect.
Owner:NANJING DENGBO BIOTECH

Biological corrosion preventing and freshness-keeping method for oranges and tangerines

The invention discloses a biological corrosion preventing and freshness-keeping method for oranges and tangerines, and the method sequentially comprises the following steps:1) adjusting the concentration of methyl jasmonate in a sealed container to 95-105mumol / L, and putting oranges and tangerines into the sealed container so as to be steamed for 22-26 hours at the room temperature; 2) taking out the oranges and tangerines processed by the step 1, and then naturally ventilating the oranges and tangerines; 3) immersing the ventilated oranges and tangerines into a 1*10<10>-1*10<12> cell / L cryptococcus laurentii suspension for 1-3 minutes, and then taking out the oranges and tangerines and drying by virtue of natural ventilation.
Owner:ZHEJIANG UNIV

Magnetic resonance imaging apparatus

For the purpose of preventing development of motion artifacts and improving image quality, a first displacement N1 of the diaphragm before a scanning section 2 performs an imaging sequence and a second displacement N2 of the diaphragm after the scanning section 2 has performed the imaging sequence are detected by a body motion detecting section 25 as displacement caused by respiratory motion of a subject. Thereafter, based on the first displacement N1 and second displacement N2 of the diaphragm detected by the body motion detecting section 25, imaging data is selected as raw data by a raw data selecting section 26. Then, based on the imaging data selected as raw data by the raw data selecting section 26, a slice image of the subject is produced by an image producing section 31.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Electric rotating machine with load dump protector

An electric rotating machine for a vehicle is equipped with a load dump protector. The load dump protector works to selectively perform a first and a second load dump protection operation to suppress a voltage surge arising from the load dump. When a rate at which an output voltage from the electric rotating machine is determined to be smaller than a given value, the load dump protector waits for stating the first load dump protection operation until the time when a voltage surge arising from changing of switching devices of a rectifier module of the electric rotating machine is expected to be suppressed and then performs the first load dump protection operation. When the rate is greater than the given value, the load dump protector immediately initiates the second load dump protection operation. This ensures the stability in eliminating the risk of a voltage surge arising from the load dump.
Owner:DENSO CORP

Lysozyme soil sterilization deep ploughing-free anti-hardening root cultivation and protection microorganism fertilizer

The invention discloses a lysozyme soil sterilization deep ploughing-free anti-hardening root cultivation and protection microorganism fertilizer. The microorganism fertilizer comprises the following components, by weight, 25-60% of a polyacrylamide, 20-45% of calcium bentonite, 8-22% of biochemical fulvic acid, 1-3% of amino acids, and 2-5% of chelated trace elements, wherein the content of calcium in the calcium bentonite is 13-15%; in the chelated trace elements, the magnesium content is 0.5-0.8%, the zinc content is 0.2-0.8%, the copper content is 0.3-0.8%, the iron content is 0.1-0.2%, and the manganese content is 0.1-0.2%; in the amino acids, the Bacillus megaterium content is 0.05-0.15 billion / g, and the colloidal Bacillus cereus content is 0.05-0.1 billion / g; in the biochemical fulvic acid, the suborder Bacillus content is equal to or greater than 0.2 billion / g, the actinomyce content is equal to or greater than 0.2 billion / g, the Serratia carollera phosphaticum content is equal to or greater than 0.2 billion / g, and the Bacillus mucilaginosus content is equal to or greater than 0.2 billion / g. The microorganism fertilizer has the advantages of simple use, no strict requirements on environments, yield increase guarantee, fertilizer dosage reduction, cost reduction, soil and crop quality improvement, and pollution reduction.
Owner:郭现广

Preparation method of biological organic and inorganic mixed liquid fertilizer

The invention relates to a preparation method of a biological organic and inorganic mixed liquid fertilizer. The preparation method comprises the steps of evenly mixing materials according to the ratio of EM solid glass Cassie to dried poultry litter to 1% EM stoste being (5-8) to (88-92) to (3-4) (parts by weight), yarding and fermenting for 21-25 days at room temperature, airing until the moisture content is lower than or equal to 30wt%; putting the materials into a fermentation tank according to the ratio of an ingredient to EM active carbon of 1 to 9 (weight ratio); hermetically fermenting for 5-7 days under an intermittent mixing condition; filtering the fermentation liquor to remove insoluble substance to obtain the clear liquid and store; mixing nutrients of nitrogen, phosphorus and potassium in the filtrate, so that the content ratio of nitrogen to phosphorus to potassium achieves the ratio of N to P2O5 to K2O being 1 to 2 to 2.5 (weight ratio), and N+P2O5+K2O is higher than or equal to 110g / L, and storing and bottling the materials. The preparation method disclosed by the invention is fast in fermentation speed, short in preparation period, and high in fermentation degree; the efficient biological organic and inorganic mixed liquid fertilizer can be obtained, and the preparation method has the effects of comprehensive nutrition, high fertilizer efficiency, nuisanceless property and obvious yield-increasing effect of crop.
Owner:HOHAI UNIV

Bio-organic fertilizer with putrid vegetable leaves putrid vegetable leaves as main material, and preparation method thereof

The invention discloses a bio-organic fertilizer with putrid vegetable leaves as a main material. The bio-organic fertilizer is composed of, by weight, 80-90 parts of the putrid vegetable leaves, 13-17 parts of silkworm excrement, 10-14 parts of phosphate fertilizer,4-5 parts of saw dust, 8-10 parts of sycamore tree fallen leaves, 1-3 parts of pipewort, 2-5 parts of tobacco leaves, 4-6 parts of rappini, 2-3 parts of attapulgite, 1-2 parts of biogas fluid, 1-2 parts of borax, 9-15 parts of flour, 63-70 parts of swill, 11-17 parts of brown sugar and 75-80 parts of faeces of human and animals. The bio-organic fertilizer produced by the method has high organic matter content, and can improve soil quality and soil structure, thereby keeping ecological balance. Besides, the bio-organic fertilizer is comprehensive in nutrition and contains macroelements and microelements required by crops and a large amount of active substances produced during a microbial fermentation process.
Owner:陆玉

Crystal growth method and semiconductor device

A method of crystal growth is provided which can suppress development of dislocations and cracks and a warp in a substrate. The method of crystal growth of a group III nitride semiconductor has: a step of heating a silicon substrate; and a step of forming a depressed structure on the substrate surface by advance-feeding onto the heated silicon substrate a gas containing at least TMA (trimethylaluminum).
Owner:THE RITSUMEIKAN TRUST +1

Planting method of Hongruyi pomegranate

The invention discloses a planting method of Hongruyi pomegranate. By inter-planting orange trees, planting coriander, tomato, wintergreen, ginger, wormwood, or fennel among pomegranate rows, planting calamus yunnanensis at the edge of a planting area, and fertilizing reasonably during fertilizer and water management, diseases and insect pests of the pomegranate can be effectively inhibited, a food refusal effect is generated to insects, ova, larvae and adult insects can be killed, and the use of chemical insecticides is reduced, so that the edible safety of the pomegranate is improved; and photosynthesis is improved, fruit dropping of the pomegranate is prevented, the quality and yield of the pomegranate are improved, and land resources can be reasonably used to improve the economic value of lands.
Owner:宾川兴盛农业开发有限公司

Processing method of low blood glucose index preserved mango fruits with effect of regulating intestinal function

ActiveCN104381559APromote natural proliferationGood for healthConfectionerySweetmeatsBiotechnologyMango fruit
The invention discloses a processing method of low blood glucose index preserved mango fruits with effect of regulating the intestinal function. The processing method sequentially comprises the following steps: fruit selecting, fruit cleaning and slicing, color-protecting, sugaring, secondary powder-wrapping and drying, wherein the sugaring process adopts L-arabinose for sugaring for 24-48 hours; the secondary powder-wrapping adopts a mixture of 80-95% of L-arabinose and 5-20% of oligosaccharide. The sugaring processing process of the preserved mango fruits processed by the processing method disclosed by the invention can keep the mouthfeel, and also has good effects of lowering the blood glucose index, restraining the development of hyperglycemia and relieving the pathogenetic condition of a patient with hyperglycemia.
Owner:AGRI PROD PROCESSING INST GUANGXI ACADEMY OF AGRI SCI +1

Magnetic resonance imaging apparatus

The present invention provides an MRI apparatus which prevents from developing body move artifacts on the image to improve the image quality. In the navigator sequence a scan unit emits first RF pulse so as to excite first slice plane area which is out of the imaging area and is intersecting the navigator area including the epiglottis, then it emits second RF pulse so as to excite second slice plane area which is out of the imaging area and is intersecting the first slice plane area in the navigator area including the epiglottis. Thereafter a body move detector detects the displacement of epiglottis due to the deglutition movement based on the navigator echo data, a raw data selector unit selects as raw data the imaging data thus obtained in the imaging sequence based on the displacement of epiglottis, then the image of the slice plane including the esophagus in the subject is generated from the imaging data thus selected.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Special biological organic fertilizer for organically cultivating paddies

The invention relates to a biological organic fertilizer. An agricultural waste (chicken manure) is converted into the biological organic fertilizer which is nuisanceless, can be applied to the organic cultivation of paddies, and belongs to the technical field of special biological fertilizers for the paddies. The biological organic fertilizer is formed by uniformly mixing and composting the following raw materials in part by weight by means of microbial fermentation: 5-8 parts of EM (effective microorganism) solid Bo Kathy, 88-92 parts of the chicken manure (with a moisture content of 50%-60%), and 3-4 parts of 1% EM stock solution. The biological organic fertilizer has the advantages that the fermentation technique is simple, the fermentation time is short, the composted biological organic fertilizer has complete nutrition and high fertilizer efficiency, is nuisanceless and can replace the application of a chemical fertilizer and a farm insecticide, the capability of the resistance to the diseases and the insect pests of the paddies can be improved, and the quality of paddy rice is improved; and synchronously, the biological organic fertilizer further has the characteristics that the agricultural surface source pollution is controlled in terms of a source, the ecological environment of a paddy field is protected, and the sustainable development of the production of the paddies is promoted. The biological organic fertilizer has an obvious application effect in the production of organic paddies and has wide market foreground and better economic benefit and environmental benefit.
Owner:HOHAI UNIV

Health food compounded with silkworm chrysalis enzymolyzing liquid and functional oligose

The present invention is health food containing protein or microbe and is especially health food compounded with silkworm chrysalis enzymolyzing liquid and function oligose. The health food with theeffects of raising body's immunity and improving body's physiological function consists of polypeptide, amino acids, unsaturated fatty acid, polysaccharide, functional oligose, vitamins and minerals. The key point of the preparing process is the superfine treatment to the granularity below 10 microns of slurry before the enzymolysis of silkworm chrysalis, and this can raise the enzymolysis greatly and material utilization without damaging the molecular structure.
Owner:李兆明

Pseudobagrus ussuriensis genetic male reversal physiological female fish breeding sifting method

The invention discloses a pseudobagrus ussuriensis genetic male reversal physiological female fish breeding sifting method. The method comprises the steps of incubating fry, selecting testing fry, incubating artemia, soaking artemia with an estradiol solution, regarding artemia as a hormone carrier to be fed to the fry, observing physiological genders of fingerlings and adult fish, and identifyinggenetic genders. Through optimized procedures, a proper feeding starting time, the concentration and time of the estradiol solution for soaking the artemia, the feeding lasting processing time are sifted, the genetically male individuals are genetically reversed into physiologically female individuals, male specific molecular markers are utilized to identify the genetically male physiologically female individuals to be subjected to separate-pond breeding, and breeding is conducted according to the breeding technological path of male fish sexual reversal, artificial gynogenesis, super-male fish and all-male fish. By means of the pseudobagrus ussuriensis genetic male reversal physiological female fish breeding sifting method, a large quantity of high-quality fundamental materials are provided for pseudobagrus ussuriensis all-male-fish breeding within a short period.
Owner:HUAIYIN TEACHERS COLLEGE

Prevention and treatment method of edible lily anthracnose

The invention discloses a prevention and treatment method of edible lily anthracnose; the method comprises the steps of preparing the medicament prepared by the following raw materials by weight: 1 part of 25% prochloraz missible oil, 10-15 parts of celastrus orbiculatus, 8-10 parts of radix euphorbiae lantu, 8-12 parts of Rhizoma Coptidis, 5-10 parts of Zanthoxylum armatum, 2-3 parts of Royal Paulowinia Flower extract, 10-15 parts of potassium chloride and 1-2 parts of boron fertilizer; mixing the raw materials, adding 1200-1500 times amount of water to the mixture and evenly spraying on the whole plant in the annual June-July before the plant are affected with edible lily anthracnose or when early scabs appear, and spraying for 1-3 times every other week; the method provided by the invention has significant prevention and treatment effect on the edible lily anthracnose and the prevention and treatment effect is good; the prevention and treatment method can effectively inhibit the occurrence and development of anthracnose, so as to increase the high yield of edible lily.
Owner:安徽徽生源生物科技股份有限公司

Pear laccase gene PbLAC1 and vector, host cell and application thereof

The invention relates to the technical fields of plant molecular biology and genetic engineering, and provides a pear laccase gene PbLAC1, the nucleotide sequence of which is shown in SEQ ID NO. 1. The invention also provides a plant over-expression vector, wherein the plant over-expression vector comprises pMD-18T-PbLAC1 plasmid constructed by PbLAC1. The invention also provides a genetically engineered host cell comprising a PbLAC1 gene sequence. The invention also provides the application of the pear laccase gene PbLAC1 in regulating plant lignin synthesis and cell wall development. The pear laccase gene PbLAC1 of the present invention provides new evidence for perfecting the plant lignin synthesis pathway, has important theoretical and practical significance for improving fruit qualityand other key agronomic characteristics of crops, and also provides a new way for regulating the content of pear stone cells by genetic engineering.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Prestressed concrete precast pile in form of mesh reinforcements

The invention discloses a prestressed concrete precast pile in the form of mesh reinforcements. The precast pile comprises a concrete pile body and a reinforcement cage arranged inside the concrete pile body, wherein the reinforcement cage comprises at least prestressed reinforcements and a reinforcing mesh fixedly connected with the prestressed reinforcements. According to the prestressed concrete precast pile, the reinforcing mesh is adopted as stirrups and fixedly connected with the prestressed reinforcements, so that a reinforcement framework is formed; when the formed tubular pile bears horizontal loads, the reinforcement framework formed by the mesh reinforcements provides higher lateral stiffness and higher capacity of preventing diagonal cracks from generating and developing for the precast pile. Besides, the precast pile has the advantages as follows: the structure is simple; materials are convenient to obtain and easy to purchase; and the like.
Owner:南京旭浦建材科技有限公司

Novel application of mulgedium tataricum

The invention discloses a novel application of mulgedium tataricum. A water extraction product of the asteraceae mulgedium plant mulgedium tataricum which can both be adopted as a medicine and as a food can strongly inhibit the growth of lung cancer cell H1299 and A549. With the plant, cancer cell mitochondrial membrane potential is reduced, intracellular reactive oxygen level is increased, and a series of physiological responses such as apoptosis is further caused. The discovery of the anticancer effect of the edible herb provides good basis for clinical medicines and the developments of novel medicines or health-care products.
Owner:SHANGHAI UNIV

Oligonucleotides and usage thereof in preparation of medicine for preventing and curing myocardial hypertrophy and heart failure

The invention belongs to the technical field of medicines, and particularly relates to 5'-AACGTT-3'-containing oligonucleotides, a functional analogue of the oligonucleotides, and usage of the oligonucleotides or the functional analogue of the oligonucleotides for preventing and curing myocardial hypertrophy and chronic heart failure. The oligonucleotides and the usage realize the function of the 5'-AACGTT-3'-containing oligonucleotides by using myocardial cells and animal hypertrophy models acknowledged in the academia at home and abroad. The experimental result shows that the 5'-AACGTT-3'-containing oligonucleotides can obviously restrain the expression of a landmark protein ANF (atrial natriuretic factor) and a beta-MHC (major histocompatibility complex) gene of the myocardial hypertrophy, and can restrain the increase of a superficial area of the myocardial cell, and the restrain function of the oligonucleotides depends on the dosage of the oligonucleotides.. In the whole experiment, the 5'-AACGTT-3'-containing oligonucleotides can obviously restrain the myocardial hypertrophy and the increase of the heart-body ratio, and the happening of myocardial necrosis can be reduced. The experiment result disclosed by the invention prompts that the 5'-AACGTT-3'-containing oligonucleotides is the medicine for effectively curing the myocardial hypertrophy and the heart failure.
Owner:NANKAI UNIV

Pests and disease prevention purposed planting method of soft-seed pomegranates

The invention discloses a pests and disease prevention purposed planting method of soft-seed pomegranates. The pests and disease prevention purposed planting method mainly includes four prevention stages of preplanting, sapling, growing period and fruit period, for preplanting, performing deep plowing the land before planting, spraying a biogenic-source disinfectant, and disinfecting by a soil fumigation mode; for the sapling, growing period and fruit period, performing targeted prevention on different pathogenesis. With the method, to-be-cultivated soil can be kept clean, survival rate of the pomegranates is increased, pest and disease damage of later period is prevented, root, stem and leaf health is kept, photosynthesis of the pomegranates is improved, storage of nutrients is guaranteed, and growth quality of the pomegranates is improved; meanwhile, the disinfectant is the biogenic-source disinfectant, continuous pest killing effect is achieved, antibody cannot be produced to larva, and soil hardening, underground water pollution and harm to human beings cannot occur.
Owner:大理天植农业有限责任公司

Chinese medicament preparation for treating hyperosteogeny and rheumatism and preparation method thereof

The invention discloses a traditional Chinese medicine preparation for treating hyperosteogeny and rheumatism and a preparation method thereof. The traditional Chinese medicine preparation for treating hyperosteogeny and rheumatism is a clinically acceptable medicine preparation formulation prepared from the following crude medicines by weight ratio, namely 100 to 600 weight portions of epimedium, 50 to 300 weight portions of Clematis chinensis, 50 to 300 weight portions of Psoralea corylifolia, 20 to 150 weight portions of dipsacus saponin, 20 to 150 weight portions of Davallia mariesii, 20 to 150 weight portions of achyranthes, 20 to 150 weight portions of Chinese angelica and 20 to 150 weight portions of Dangshen, by the steps of crushing, decoction, concentration, drying and the like. The traditional Chinese medicine preparation for treating hyperosteogeny and rheumatism has the functions of strengthening the muscles and bones, dispelling wind and eliminating dampness, activating blood circulation to dissipate blood stasis and relaxing vein and stopping pain, is used for treating hyperosteogeny, wind-cold-damp arthralgia, low back and leg pain and limb anaesthesia, and has the advantages of definite treatment effect, safety and nontoxicity, convenient use and stable quality.
Owner:TIANKE RENXIANG TECH BEIJING

Glow plasma generating device for surface modification of polymer material

The invention provides a glow plasma generating device for surface modification of a polymer material, including: a high frequency and high voltage power supply, a high voltage electrode, an insulating medium, a metal mesh electrode and a modified material, wherein the high voltage electrode is connected to the high voltage and high frequency power supply through the lead wire, the metal mesh electrode is connected to the ground terminal through the lead wire, the insulating medium is disposed between the high voltage electrode and the metal mesh electrode, the modified material is placed on the surface of the metal mesh electrode; the high voltage electrode and the insulating medium, the insulating medium and the metal mesh electrode, and the metal mesh electrode and the modified materialall keep in sealed contact; and when the voltage applied by the high voltage and high frequency power supply reaches the discharge voltage, the glow discharge plasma is generated in the discharge region and acts on the modified material. The invention suppresses the development degree of the electron collapse by constructing a sub-millimeter discharge gap by directly contacting the modified material with the electrode, which further suppresses the generation of the filament discharge, and is beneficial to improving the effect of the plasma on the surface modification of the material.
Owner:BEIJING RUIYUDA TECH

Novel nozzle and fin combined type vortex reduction system

The invention discloses a novel nozzle and fin combined type vortex reduction system, and relates to aero-engines. The novel nozzle and fin combined type vortex reduction system comprises a plurality of reverse rotation nozzles and a plurality of reverse rotation fins, each reverse rotation nozzle is installed at the position of a two-stage gas compressor disc, and each reverse rotation fin is installed at the position of a front-stage gas compressor disc and located at the downstream position of the multiple reverse rotation nozzles; the reverse-rotation nozzles and the reverse-rotation fins are evenly arranged in the circumferential direction of the gas compressor discs and are coaxial with the gas compressor discs on the two sides, the structures of the reverse-rotation nozzles and the reverse-rotation fins are the same, the corresponding installation radiuses are the same, the circumferential speed of airflow is limited, development of free vortexes is restrained, and flow hindrance is reduced. Compared with a vortex reducing pipe, the flow area of the reverse rotation fins is large, sudden expansion and sudden shrinkage of a flow channel in the air entraining process are avoided, therefore viscous dissipation caused by airflow mixing is reduced, and airflow total pressure losses are reduced.
Owner:BEIHANG UNIV
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