254results about How to "Improve stress tolerance" patented technology

This invention discloses stress-tolerant R2R3 MYB transcription factor, its coding gene and application. The stress-tolerant R2R3 MYB transcription factor is derived from Arabidoesis thaliana, and can be applied in culturing stress-tolerant plants that can resist abscisic acid, high salt and draught. The transcription factor is one of the following amino acid residue sequences: (1) SEQ ID NO.1; (2) protein by substituting, deleting or adding 1-10 amino acid residues of SEQ ID NO.1, which can regulate the stress tolerance of plants. The protein and its coding gene have important meaning to research on plant stress-tolerant mechanism, and method for improving draught, salt and stress tolerance of plants. The protein and its coding gene have potential application in stress-tolerant genetic engineering of plants.

A capacitive sensor includes one or more chambers through which a material can flow. Two conductors are located to partially surround the flow chamber so that the material flows between the conductors. Where more than one chamber is used, additional conductors are provided. A measurement circuit connected to the conductors provides an output corresponding to a difference between test and reference frequencies. A display indicates the measured capacitance as a continuous-scale, proportional representation or a binary representation. The sensor system can measure volume charge density of a fluid or parameters responsive to changes in volume charge density, such as flow velocity.

The present invention provides a flexible display device and a manufacturing method thereof, wherein the flexible display device comprises a flexible substrate and a metal line arranged on the flexible substrate, and a part of the metal line is an arc-shaped line segment. According to the flexible display device and the manufacturing method thereof provided by the present invention, by setting a part of line segment of the metal line as the arc-shaped line segment, the stress bearing capability of the metal line is improved, thereby prolonging the usage times of the metal line, and improving the service life of the flexible display device. Further, the arc-shaped line segment adopts an up-down fluctuation structure and a plane bending structure which are arranged alternatively, so that the break risk of the metal line is reduced further, and the reliability of the flexible display device is improved.

The invention provides a coprophilous fungus composition. According to the invention, fresh night soil of adult health pig is taken as a manure source, a coprophilous fungus final suspension is prepared by three-time centrifugation under specific low-temperature condition, a high molecular weight compound protective agent skimmed milk powder and a low molecular weight compound protective agent (glycerin, lactose, galactose, cane sugar, glucose, maltodextrin, sorbitol, adonitol and trehalose) are added, the coprophilous fungus composition is produced, which contains abundant Bacillus spp, lactic acid bacteria, lactobacillus, bifidobacteria, and streptococcus thermophilus, live bacteria number is kept at 108 CFU / g and more, the coprophilous fungus composition is used for preventing and treating diarrhoea of pigling at a lactation period, the prevention and treatment effects are obvious, the coprophilous fungus composition has more obvious effect for preventing and treating diarrhoea of pigling with 0-14 days (21-28 days early-stage weaning method) and 0-21 days (35 days weaning method). The preparation method of the coprophilous fungus composition is simple, the product shelf-life is long, the defect that the current coprophilous fungus transplant requires real-time preparation in the prior art, and the coprophilous fungus composition is suitable for industrial production.

The invention discloses a flexible composite tube and a manufacturing method thereof, and belongs to the technical field of pipelines. The flexible composite tube comprises an inner layer tube, a reinforcing layer and an outer layer tube. The inner layer tube is made of polyvinylidene difluoride, polyethylene, polyethylene stem grafting difluoro maleic anhydride, ethylene-propylene polymer and antioxygen. The reinforcing layer is made of long-fiber reinforced resin matrix prepreg tapes. The outer layer tube is made of polyethylene or polypropylene. The manufacturing method for the flexible composite tube comprises the step of manufacturing the inner layer tube, the step of manufacturing the reinforcing layer and the step of manufacturing the outer layer tube. The inner layer tube made of the polyvinylidene difluoride, the polyethylene, the polyethylene stem grafting difluoro maleic anhydride, the ethylene-propylene polymer and the antioxygen is adopted, so that the flexible composite tube has a good high-temperature resistant property, a good barrier property and a good anti-swelling property. The creep deformation of the inner layer tube can be effectively avoided, the long-fiber reinforced resin matrix prepreg tapes adopted in the reinforcing layer have a good binding capability with the inner layer tube, and the layering of a pipeline can be effectively avoided. Meanwhile, the flexible composite tube has the advantages of being simple in structure, low in cost, simple in manufacturing method and the like, and has wide application prospects.

A pulsation damper mounted in a fuel chamber (23) of a high-pressure fuel pump (20) is provided with a diaphragm (11) having a flat section (11a) displaced when fuel pressure is applied thereto, a pump cover (10) for supporting the diaphragm (11), and a gas chamber (12) formed by the diaphragm (11) and the pump cover (10). Pressure pulsation occurring in the fuel chamber (23) is suppressed by displacement of the flat section (11a). The diaphragm (11) is formed in a closed-bottomed tubular shape with the flat section (11a) located at the bottom and has a projection (11b) provided to the periphery of the flat section (11a) and projecting to the side opposite to the pump cover (10). A tubular peripheral section extending from the outer periphery of the projection (11b) so as to be vertical to the flat section (11a) is fitted over the pump cover (10). The externally fitting portion of the tubular peripheral section is a joint section (11c) joined to the pump cover (10).

The invention discloses a method for breeding ultrahigh-yield eurytopic wheat. The method provided by the invention comprises the following steps of: hybridizing disease-resistant wheat serving as a female parent and No.924402 wheat serving as a male parent, and obtaining destination wheat by screening, wherein the destination wheat is one of the following (a) to (f) wheat: (a) wheat, the yield, the lodging resistance and the stress tolerance of which are higher than those of No.14 Lu wheat; (b) wheat, the yield of which is higher than that of No.14 Lu wheat or No.19 Ji wheat or No.4185 Shi or No.8 Jingdong; (c) wheat, the lodging resistance of which is higher than that of No.14 Lu wheat; and (d) wheat, the stress tolerance of which is higher than that of No.14 Lu wheat or No.4185 Shi or No.4589 Han. Proved by experiments, the stable yield and the eurytopic property are enhanced by parent creation, hybridization and recombination, separate generation shuttle selection, alternate flood and drought selection and multi-point identification of set strains; and a new wheat variety is obtained.

The invention provides a method for improving crop stress resistance by using hydrogen sulfide donor sodium hydrosulfide. The method for improving the crop stress resistance by using the hydrogen sulfide donor the sodium hydrosulfide includes the steps of: soaking seeds in a sodium hydrosulfide solution with the concentration to be 0.01-1.6 millimole per litre for 6-24 hours and at the temperatureof 25-30 DEG C before sowing; or conducting plant root irrigation with the sodium hydrosulfide solution of the concentration of 0.01-1.6 millimole per litre in a seedling stage and replacing the treatment solution every 6 to 24 hours and replacing continuously for 2 to 5 times; or spraying on the foliage at different stages of stress with the sodium hydrosulfide solution of the concentration of0.01-1.6 millimole per litre during plant maturity. With different application methods and a certain concentration of sodium hydrosulfide solution according to different plants at different growth stages and different periods of stress, the method for improving the crop stress resistance by using the hydrogen sulfide donor the sodium hydrosulfide has the advantages of improving seed germination rate, increasing plant biomass, adjusting the chlorophyll content required for plant photosynthesis, alleviating the problems, caused by the stress, of plant water loss, photosynthetic rate, stomatal conductance, and intercellular carbon dioxide concentration and transpiration rate changes, and improving crops' ability to resist stress.

The invention discloses a soybean zinc finger protein gene STF-2 which is a C2H2 type zinc finger protein gene related to drought and newly discovered in soybeans. Experiments show that: the STF-2 encoded protein can be located in the nucleus; after over-expression, the gene can obviously improve the drought resistance of the transgenic plants, and has a function of improving the comprehensive stress resistance of the plants; the gene disclosed by the invention comes from soybeans and has an optimized codon suitable for the dicotyledons such as soybeans and the like, and the genetic engineering receptor thereof is mainly suitable for the dicotyledons such as soybeans, tobaccos, cotton and the like; and moreover, the gene is also suitable for the monocotyledons such as rice, wheat, corn and the like.

The invention belongs to the field of plant gene engineering and transgenic breeding, and relates to a method for improving the stress resistance of cut chrysanthemum through trans-CgHSP70 genes. CgHSP70 established plant expression vectors obtained by cloning from Zhongshan purple cinnamon of the chrysanthemum are transferred into the cut chrysanthemum by using an agrobacterium-mediated method for cultivation so as to initially obtain resistant plants, and positively transferred plants are obtained through the screening of hygromycin resistance; PCR (polymerase chain reaction) and fluorescence quantitative PCR analysis is performed on converted plants to prove that endogenous genes are transferred into genome DNA of transgenic plants and transcription occurs; and the resistance analysis on the offsprings of the transgenic plants proves that the resistance to high temperature, drought and high salt is obviously improved. In the invention, the stress resistance of the cut chrysanthemum is improved through the conversion of the endogenous CgHSP70 genes and normal transcription expression as well as the induction of the expression of the genes at an adverse environment; a novel and practical method is provided for selecting and breeding stress resistance varieties of chrysanthemum by using a gene engineering technology; and the breeding progress of the biotechnology of the chrysanthemum can be effectively accelerated.

Methods and compositions are provided which improve the adhesion of a bacteria to target substrates and / or improve the stress tolerance of a bacteria. Methods comprise exposing bacteria to adhesion adaptive conditions and thereby increasing the adhesion activity and / or stress tolerance of the bacteria. Further provided are bacteria having a modulated production of autoinducer-2. Compositions include recombinant bacteria expressing nucleic acid molecules involved in the pathway of autoinducer-2 production. Further provided are autoinducer-2-related fusion proteins, antigenic peptides, antibodies, and vectors. Methods of screening compounds or environmental conditions which will stimulate the production of autoinducer-2 and / or produce an adhesion adaptive response are further provided, as are various methods of use for the bacteria having increased adhesion and / or stress tolerance.

The invention discloses a combination type heat storage water tank of an external disk heat storage casting box and a condensation heat exchanger. The combination type heat storage water tank comprises a shell, the heat storage casting box, a heat storage material, a water tank liner, the condensation heat exchanger and an insulating material; the heat storage material is filled in the heat storage casting box; the insulating material foams between the shell and the water tank liner; the water tank liner is provided with a water inlet and a water outlet; the outer wall of the water tank liner is externally wrapped by the heat storage casting box; and the outer wall of the water tank liner is externally wrapped by the condensation heat exchanger. According to the invention, the heat storage casting box and the condensation heat exchanger are not directly immersed in water, so as to ensure safety of water quality; and at the same time, the heat storage casting box and the condensation heat exchanger are not corroded, so as to prolong the service lives; and the heat storage casting box and the condensation heat exchanger do not occupy volume of the water tank liner, so as to increase the water storage capacity of the water tank.

The present invention relates to a monitoring device and method of the axial force of a shield tunnel joint bolt. The device comprises a thin film type bolt axial force sensor which is connected to the shield tunnel joint bolt and is used for directly converting the axial force borne by the shield tunnel joint bolt into an electrical signal, and signal processing equipment which is connected to the thin film type bolt axial force sensor in monitoring and is used for converting the electric signal transmitted by the thin film type bolt axial force sensor into a readable pressure signal. The method comprises a step of carrying out data collection through the thin film type bolt axial force sensor and obtaining the electrical signal of the axial force borne by the joint bolt, and a step of converting the electrical signal into the pressure signal and displaying the pressure signal according to the conversion relation between the electrical signal of the thin film type bolt axial force sensor and the pressure signal. Compared with the prior art, the device and the method have the advantages of a low requirement for an installation space, no damage to a bolt, strong adaptability to a monitoring environment and a wide application range.

A pulsation damper mounted in a fuel chamber (23) of a high-pressure fuel pump (20) is provided with a diaphragm (11) having a flat section (11a) displaced when fuel pressure is applied thereto, a pump cover (10) for supporting the diaphragm (11), and a gas chamber (12) formed by the diaphragm (11) and the pump cover (10). Pressure pulsation occurring in the fuel chamber (23) is suppressed by displacement of the flat section (11a). The diaphragm (11) is formed in a closed-bottomed tubular shape with the flat section (11a) located at the bottom and has a projection (11b) provided to the periphery of the flat section (11a) and projecting to the side opposite to the pump cover (10). A tubular peripheral section extending from the outer periphery of the projection (11b) so as to be vertical to the flat section (11a) is fitted over the pump cover (10). The externally fitting portion of the tubular peripheral section is a joint section (11c) joined to the pump cover (10).

The embodiment of the invention relates to the technical field of display, and discloses a flexible display substrate. The flexible display substrate comprises a flexible substrate, multiple pixel islands located on the flexible substrate and inter-island connection lines for connecting adjacent pixel islands, wherein the inter-island connection line comprises a first wiring layer and a second wiring layer respectively connected to two adjacent pixel islands and a connection layer connected with the first wiring layer and the second wiring layer; and the connection layer comprises a pullable conductive material layer. The embodiment of the invention also provides a flexible display device and a flexible display substrate manufacturing method. According to the flexible display substrate, the display device and the manufacturing method thereof, the stretching properties of the inter-island connection lines can be enhanced, and the stretching reliability of the flexible display substrateis thus improved.

The present invention relates to plastic and aims at providing one kind of plastic bag with non-linear hot sealing line and thus raised bearing capacity. Unlike traditional plastic bag, which has straight hot sealing line, the plastic bag has curved or broken hot sealing line. Repeated test shows that the plastic bag with non-linear hot sealing line has obviously raised bearing capacity.

The invention relates to a thermal barrier coating, as well as a preparation method and application thereof, and an aero-engine turbine blade, and belongs to the field of aero-engine hot end part protection coatings. The thermal barrier coating comprises a 7YSZ ceramic layer and an aluminum oxide layer arranged on the surface of one side of the 7YSZ ceramic layer, wherein the 7YSZ ceramic layer isin a feather column shape; and aluminum oxide in the aluminum oxide layer is nanocrystals. The thermal barrier coating not only has high thermal insulation and high stress tolerance, but also has favorable fused salt corrosion resistance and resistance to high temperature oxidation and particle erosion. The preparation method comprises the steps of adopting a plasma spraying-physical vapor deposition method for preparing the 7YSZ ceramic layer; adopting a magnetron sputtering technology for preparing the aluminum oxide layer; and then carrying out vacuum treatment. The method is simple, and the uniform thermal barrier coating can be prepared. The thermal barrier coating is applied to be arranged on an aero-engine hot end part such as the surface of a turbine blade, so that the turbine blade has favorable resistance to high temperature oxidation, CMAS corrosion and particle erosion.

The novel constructs and methods of this invention improve tolerance in plants to environmental stresses and senescence. Nucleic acids encoding a plant farnesyl transferase are described, as are transgenic plants and seeds incorporating these nucleic acids and proteins. Also provided are inhibitors of naturally-occurring farnesyl transferase which, when expressed, will enhance drought tolerance in the plants, improve resistance to senescence and modify growth habit.

The invention provides a seal ring structure semiconductor device with higher stress resistance. The semiconductor device comprise: a semiconductor layer, including multiple semiconductor elements; a insulated film, disposed on semiconductor layer; a cylinder, running through insulated film and enclosing whole semiconductor element. The cylinder possesses multiple cylinder-shape parallel plugs separating from each other peripherally and multiple walls intersecting with every plug.

The invention provides a welding method for relieving residual stress of a ceramic and metal brazed joint. The method comprises the following steps: S1, respectively carrying out surface treatment ona ceramic material and a titanium-based material to obtain a to-be-connected ceramic material and a to-be-modified titanium-based material; S2, preparing a mixture for generating a surface modification layer; S3, coating the modified surface of the to-be-modified titanium-based material with the mixture, and performing connection treatment to obtain a modified titanium-based material with a surface modification layer; and S4, sequentially connecting the modified titanium-based material, a brazing filler metal and the to-be-connected ceramic material, and performing brazing. The brazing fillermetal is connected with the to-be-connected surface of the to-be-connected ceramic material and the surface modification layer. According to the method, the surface modification layer with the small thermal expansion coefficient is prepared on the surface of the titanium-based material in advance, then brazing connection is conducted, on the premise that the elasticity modulus of the brazing filler metal layer is not increased, the thermal expansion coefficient of the surface modification layer can be reduced, and the residual stress of a brazed joint is effectively reduced.

The invention discloses hydrogen raw material production equipment and process for ammonia synthesis. The hydrogen raw material production equipment comprises a control device, a methanol water storage conveyer and at least three groups of methanol water-reforming hydrogen production modules, wherein the control device is electrically connected with the methanol water storage conveyer and each group of methanol water-reforming hydrogen production modules, so as to control the working states of the methanol water storage conveyer and the methanol water-reforming hydrogen production modules; hydrogen prepared by various methanol water-reforming hydrogen production modules is directly conveyed to an ammonia synthesis system through conveying pipelines; and the control device is used for controlling a proper number of methanol water-reforming hydrogen production modules to run according to the hydrogen raw material quantity demand information of the ammonia synthesis system. The hydrogen raw material production equipment is high in modularization; a single module is small in size and fast to start; the hydrogen can be immediately prepared without a hydrogen storage tank, and can be rapidly separated; and the hydrogen raw material production equipment is good in stability, high in intellectualization, sensitive in parameters control of hydrogen preparation temperature, gas flow and air pressure, high in safety and high in reliability.

The invention discloses a soybean zinc finger protein gene SCTF-1 which is a C2H2-type zinc finger protein gene which is discovered in soybean and is relevant with low temperature. The experiment shows that the protein coded by SCTF-1 can be located to a cell nucleus; after being excessively expressed, the gene can obviously improve cold resistance of transgenic plants, and has a function of improving plant comprehensive stress tolerance. The gene provided by the invention is derived from soybean, and comprises an excellent codon of dicotyledon, such as soybean and the like; and the gene engineering receptor of the gene is mainly suitable for dicotyledon, such as soybean, tobacco and cotton and the like, and also suitable for monocotyledon, such as rice, wheat and corn and the like.

The present invention discloses application of rice gene BSK331 in improvement of plant stress tolerance. Experiments show that the gene can significantly improve adversity stress high salt and drought tolerance when in use in conversion of rice. A protein and a coding gene have important theoretical and practical significance for study of plant stress tolerance mechanisms and improvement of plant stress tolerance and related traits, may play an important role in improvement of stress tolerance gene engineering of plants (especially cereals), and has broad application prospects.

The invention discloses an LED device. The LED device comprises an LED chip, a support for bearing the LED chip, a conductive bonding wire for connecting an LED chip electrode and the support as well as a packaging glue body for covering the LED chip and the conductive bonding wire, wherein the support comprises an insulation area as well as a first electric connection area and a second electric connection area which are located on two sides of the insulation area respectively, the LED chip is mounted in the first electric connection area, one end of the conductive bonding wire is located at the LED chip electrode, the other end of the conductive bonding wire is located in the second electric connection area, and the conductive bonding wire comprises a vertical section, a first bending section, a second bending section and a connecting section. The invention further discloses an LED lamp and a method for processing the conductive bonding wire of the LED device. The stress bearing capacity of the conductive bonding wire is improved by a three-dimensional structure formed by the vertical section, the first bending section, the second bending section and the connecting section of the conductive bonding wire, so that the overall service life of the device is prolonged.

The invention discloses a styrene-butadiene rubber composite material for a high-performance tire. The styrene-butadiene rubber composite material comprises the following raw materials in parts by weight: 80-100 parts of powdered styrene-butadiene rubber, 8-13 parts of nano-loess powder, 15-20 parts of hydroxyl-terminated liquid styrene-butadiene rubber, 5-7 parts of montmorillonite, 13-20 parts of aluminum hydroxide, 18-23 parts of calcium sulfate whisker, 8-12 parts of furnace carbon black, 0.6-0.98 part of sulfur, 0.7-0.92 part of promotor, 0.23-0.5 part of 1,3-diphenylguanidine, 1-3 parts of zinc oxide, 1.5-2.4 parts of stearic acid and 2-3 parts of titanate coupling agent, wherein the content of styrene in the powdered styrene-butadiene rubber is 25-30%, and the Mooney viscosity of the powdered styrene-butadiene rubber (ML1+4, 100 DEG C) is 52-57; the content of styrene in the hydroxyl-terminated liquid styrene-butadiene rubber is 23.4-26.5%, and the viscosity of the hydroxyl-terminated liquid styrene-butadiene rubber is 14.4-16.2Pa.s. The invention also discloses a preparation method of the styrene-butadiene rubber composite material for the high-performance tire.

The invention discloses an application of NsNHX1 protein and related biomaterials in breeding of reverse-resistant poplar. In the present invention, the nitraria sibirica Na<+> / H<+> reverse transport protein NsNHX1 is used as a research object, and is transferred into Populus tomentosa 84K to obtain transgenic NsNHX1 Populus tomentosa. Three transformants, N1, N2 and N3, are selected for identification of reverse resistance. The wild-type Populus tomentosa is used as a control to study the salt-tolerance and antioxidant capacity of transgenic NsNHX1 populus tomentosa under adversity stress. The results show that under the conditions of adversity stress treatment, the survival rate, biomass, leaf chlorophyll content, water content, plant height and antioxidant capacity of transgenic NsNHX1 are significantly higher than those of wild type populus tomentosa. The application indicates that NsNHX1 can significantly improve the reverse resistance and antioxidant capacity of the transgenic poplar, and NsNHX1 can be used as a salt tolerance gene to breed the reverse-resistant poplar varieties.

The invention discloses a thermal barrier / high-temperature low infrared emissivity integrated coating. The coating is of a multilayer stacked structure. The multilayer stacked structure successively comprises a metal bonding layer, a thermal barrier ceramic layer and a low infrared emissivity layer from inside to outside. The thermal barrier ceramic layer is a rare earth hexaaluminate layer, and the low infrared emissivity layer is a Bi2O3-MgO-Al2O3-Li2O-SiO2 serial glass coating containing a conductive phase Pd powder. The integrated coating has the advantages of heat-insulating property, high-temperature low infrared emissivity, high bonding strength and the like. The metal composite material with the coating is simple and manure in process, relatively low in cost and easy for scaled production and application.

The invention provides a treating system for industrial wastewater containing heavy metal. The system comprises an electrolytic tank (1); the electrolytic tank (1) comprises a first trough wall (11) and a second trough wall (12), which are arranged to be opposite; positive plates (2) and negative plates (3) are staggerly arranged in the electrolytic tank (1), the first ends of the positive plates(2) are fixed on the first trough wall (11), the first ends of the negative plates (3) are fixed on the second trough wall (12), and each negative plate (3) is a starting sheet of a tri-dimensional network structure. According to the invention, because of utilization of the tri-dimensional network structure in the treating system, the negative starting sheets have substantially improved capacity in bearing stress, and the problem of short circuit of cathodes and anodes caused by cracking of the negative plates is avoided; the operation of plate stripping is omitted. The invention also provides a treating method for industrial wastewater containing heavy metal by using the treating system.

The invention discloses application of protein AtbHLH122 of Arabidopsis thaliana and a coding gene of the protein AtbHLH122 for regulating and controlling the stress tolerance of plants. The amino acid sequence of the protein is shown in a sequence 1 of a sequence table and can be used for regulating and controlling the stress tolerance of the plants, or substances and methods, capable of adjusting the expression level of the protein shown in the sequence 1 of the sequence table, can be used for regulating and controlling the stress tolerance of the plants. Shown by experiments, after the coding gene of the protein AtbHLH122, which is shown in a sequence 2 of the sequence table, is over-expressed in Arabidopsis thaliana, a transgenic Arabidopsis thaliana plant is obtained, the survival rate after drought treatment, the germination rate and leafy rate after 140mM NaCl treatment and the root length after 250mM mannitol treatment of the transgenic Arabidopsis thaliana plant are remarkably lower than those of the wild plants, and furthermore, after the treatments, gene AtbHLH122 knockout mutants are less than those of the wild plants; and thus, the protein AtbHLH122 shown in the sequence 1 of the sequence table has the function of regulating and controlling the stress tolerance of the plants and has an important significance on the aspects of stress tolerance research and breeding of the plants.