133results about How to "Improve material stability" patented technology

A white light emitting device including: a blue LE chip having a dominant wavelength of 430 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue LED chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram, and the red phosphor includes a phosphor represented by (Sr, Ba, Ca)AlSiN3:Eu and the green phosphor includes a phosphor represented by (Sr, Ba, Ca)2SiO4:Eu.

A pencil-type glow plug for a self-igniting internal combustion engine is described. The pencil-type glow plug includes a plug body in which a combustion chamber pressure sensor is integrated, and a bar-shaped heating element that protrudes out from the plug body at one end, into the combustion chamber of the internal combustion engine. A force-measuring element of the combustion chamber pressure sensor is accommodated behind the heating element, which moves axially under the influence of force. The force-measuring element is sealed against combustion chamber gases by a steel diaphragm made of a stainless precipitation-hardened maraging steel.

Interfused nanocrystals including two or more materials, further including a n alloy layer formed of the two or more materials. In addition, a method of preparing the interfused nanocrystals. In the interfused nanocrystals, the alloy layer may be present at the interface between the two or more nanocrystals, thus increasing the material stability. A material having excellent quantum efficiency in the blue light range may be synthesized.

Provided are compositions for improving the water-resistance and dimensional stability of wood and wood products. The compositions comprises wax and oil components, and can be applied as liquid compositions comprising little or no water. Also provided are methods for the application of the compositions to wood.

A pencil-type glow plug for a self-igniting internal combustion engine is described. The pencil-type glow plug includes a plug body in which a combustion chamber pressure sensor is integrated, and a bar-shaped heating element that protrudes out from the plug body at one end, into the combustion chamber of the internal combustion engine. A force-measuring element of the combustion chamber pressure sensor is accommodated behind the heating element, which moves axially under the influence of force. The force-measuring element is sealed against combustion chamber gases by a steel diaphragm made of a stainless precipitation-hardened maraging steel.

The present invention provides photocatalysts showing excellent sensitivity not only in ultraviolet light region but also in visible light region. The ultraviolet and visible light-sensitive titania-based photocatalysts according to the present invention are characterized by their composition as expressed by a general formula: TiSixNyO2+2x−y (where 0.01<x<1 and 0.003<y<0.3). The invented photocatalysts have optical properties that the relative absorbance at 450 nm to that of 300 nm is not lower than 0.1 and the relative absorbance at 600 nm to that of 300 nm is not higher than 0.1.

The present invention relates to a kind of biodegradable polyester and its preparation method, which belongs to the field of biodegradable co-polyester product technology. The number-average molecular weight of the biodegradable polyester material under this invention is 6000-135000 g / mol, the molecular weight distribution is 1.2-6.5, and the range of crystallization temperature is 15° C.-105° C., which could overcome the disadvantages of existing technical products and can be processed into membrane materials, sheet materials and foam materials. During processing, the picking property will be dramatically changed with the appearance quality improved; after heat resistance is improved, this new type of polyester material could also be applied to the processing course with long cycles, for example, the injection processing course, and the biodegradable aliphatic / aromatic polyester materials provided by this invention has excellent mechanical properties.

A rotor blade for wind energy plants with a multiplicity of cross bores running transversely to the longitudinal axis of the rotor blade in the region of the blade base, which are provided for the accommodation of cross pins, wherein for fastening the rotor blade on a rotor blade fixture, tensioning elements act upon the cross pins wherein at least one of the cross bores has a distance from the hub-side rotor blade edge which is different from the distance of a further cross bore from the rotor blade edge.

The invention discloses a microwave film resistor and a manufacturing method thereof, and belongs to the field of circuit elements. The microwave film resistor comprises a ceramic substrate, a film resistance layer which is adhered to the upper surface of the ceramic substrate and an electrode layer which is adhered to the film resistance layer. The film resistor has the advantages of high precision, high using frequency and high resistance stability. In addition, the invention also discloses a microwave film resistor network module and a manufacturing method thereof, wherein the microwave film resistor network module is formed by integrating three or more microwave film resistors on one module.

A polyolefin composition containing elastomers (plasticizers), crystalline polypropylene, modified by mixing with polybutene-1 and a coupling agent and a bicyclic dicarboxyl acid salt nucleating agent and / or a lubricant which comprises an unsaturated fatty acid ester which acts as a surface modifier in a molded article is described. The composition is adapted to be used with pigments to make finished molded articles which have an appearance of paint covered by a clear coat and which are scratch resistant and have good low temperature (−30° C.) impact properties.

The present invention provides a high-strength steel sheet having a tensile strength (TS) of at least 780 MPa, excellent ductility and stretch flangeability, and excellent material-quality stability, achieved by: having a specific component composition; the Mn volume divided by the B volume being not more than 2100; the steel structure having, in terms of area ratio, a total of ferrite and bainitic ferrite of 25-80%, and 3-20% martensite, and having, in terms of volume fraction, at least 10% retained austenite; the average crystalline particle diameter of the retained austenite being not more than 2[mu]m; the average Mn volume (mass%) in the retained austenite being at least 1.2 times the Mn volume (mass%) in the steel; and retained austenite aggregates, in which seven or more retained austenite crystal particles having the same orientation are grouped together, accounting for, in terms of area ratio, at least 60% of the total retained austenite.

The invention discloses a composite material 3d printing method realized by photocuring-jetting nano ink, and the method comprises the following steps: preparing the nano ink; by means of micro-droplet jetting, jetting the nano-ink by an ink-jet print head; dividing three-dimension modeling into a plurality of two-dimension graphs, and calculating the print time for each graph; according to the print time for each graph, turning on an ultraviolet light source in a fixed time, monitoring the temperature of curing regions in real time by a temperature sensor, monitoring the curing moulding status of nano-particle ink in printing regions, and turning off the ultraviolet light source after curing is finished; and performing printing layer by layer, and performing curing layer by layer, so as to finish product printing. The method is suitable for printing ceramics, glass, nylon or plastic products; by using the ultraviolet light for curing moulding, the technical problems in an existing 3D printing technology on narrow range of material choice, poor moulding precision, small moulding size, slow moulding speed and the like are solved. The invention also discloses a micro-droplet-jetting 3d printer which is suitable for 3D printing in the above method.

An optical recording medium dye is described. The optical recording medium dye is an azo metal chelate compound, wherein the azo metal chelate compound comprises the following structure: wherein R1 is a hydrogen atom, a C1-6 straight chain or branched alkyl group, an amino group, an alkylamino group or a tolylamino group; R2 is a hydrogen atom, a hydroxyl group, a halogen atom, an ether group, a C1-6 straight chain or branched alkyl group; R3 is a hydrogen atom, a C1-6 straight chain or branched alkyl group; R4 is a hydrogen atom, a C1-6 straight chain or branched alkyl group or a halogen atom; A3 is a residue forming a heterocyclic ring derivative together with a carbon atom and a nitrogen atom.

The present invention provides a high-strength steel sheet having a tensile strength (TS) of at least 780 MPa, excellent ductility and stretch flangeability, and excellent material-quality stability, achieved by: having a specific component composition; the steel structure having, in terms of area ratio, a total of ferrite and bainitic ferrite of 25-80%, and 3-20% martensite, and having, in terms of volume fraction, at least 10% retained austenite; the average crystalline particle diameter of the retained austenite being not more than 2[mu]m; the average Mn volume (mass%) in the retained austenite being at least 1.2 times the Mn volume (mass%) in the steel; and the area ratio of retained austenite that has an average C volume (mass%) of at least 2.1 times the C volume (mass%) of the steel being at least 60% of the area ratio of the total retained austenite.

Interfused nanocrystals including two or more materials, further including an alloy layer formed of the two or more materials. In addition, a method of preparing the interfused nanocrystals. In the interfused nanocrystals, the alloy layer may be present at the interface between the two or more nanocrystals, thus increasing the material stability. A material having excellent quantum efficiency in the blue light range may be synthesized.

Disclosed is a magnetic tunnel junction structure having perpendicular anisotropic free layers, and it could be accomplished to reduce a critical current value required for switching and maintain thermal stability even if a device is fabricated small in size, by maintaining the magnetization directions of the free magnetic layer and the fixed magnetic layer constituting the magnetic tunnel junction structure perpendicular to each other.

A carbon-coated transition metal nanocomposite material includes carbon-coated transition metal particles having a core-shell structure. The shell layer of the core-shell structure is a graphitized carbon layer doped with oxygen and / or nitrogen, and the core of the core-shell structure is a transition metal nanoparticle. The nanocomposite material has a structure rich in mesopores, is an adsorption / catalyst material with excellent performance, can be used for catalyzing various hydrogenation reduction reactions, or used as a catalytic-oxidation catalyst useful for the treatment of volatile organic compounds in industrial exhaust gases.

The present invention provides photocatalysts showing excellent sensitivity not only in ultraviolet light region but also in visible light region. The ultraviolet and visible light-sensitive titania-based photocatalysts according to the present invention are characterized by their composition as expressed by a general formula: TiSixNyO2+2x−y (where 0.01<x<1 and 0.003<y<0.3). The invented photocatalysts have optical properties that the relative absorbance at 450 nm to that of 300 nm is not lower than 0.1 and the relative absorbance at 600 nm to that of 300 nm is not higher than 0.1.

An exhaust gas cleaning apparatus for cleaning an exhaust gas emitted from a combustion engine has a stack of plural material layers successively arranged on each other in a stacking direction. The material layers are made of a porous material being permeable to the exhaust gas. The stack has an entry side and an exit side. Plural exhaust gas flow channels are defined in the stacking direction between two adjacent material layers in the stack. The exhaust gas flow channels are defined by surfaces of the material layers which have, when viewed in a flow direction of the exhaust gas from the entry side to the exit side, a plurality of concave and convex areas. A first group of exhaust gas flow channels is formed to be open at the entry side of the stack and closed at the exit side thereof.

Methods, systems, and compounds for degrading chlorinated compounds in water. A facile aqueous-based surface treatment of zero-valent iron is provided to increase the reactivity of a zero-valent iron material for degrading chlorinated compounds in the water without the use of a noble metal catalyst. Such a facile aqueous-based surface treatment can be implemented as a surface sulfidation pre-treatment of iron to increase its reactivity towards chlorinated contaminants in water. The disclosed facile aqueous-based surface treatment increases reactivity utilizing sulfur compounds for use in the degradation of the chlorinated compounds in the water.

The present invention relates to the diagnosis, prognosis and / or treatment of wound infection by testing wound fluid for the presence of a marker which is present in an amount which is indicative of infection. The marker may be high molecular weight phospholipase A2 (cPLA2) or a marker which is correlated with cPLA2.

The present invention relates to a method of determining the microbial bioburden in a wound (in particular a diabetic ulcer) in a test subject, the method comprising the step of measuring the level of a cytokine in a wound sample, wherein a cytokine level lower than a reference level indicates a significant microbial bioburden in the wound (or a cytokine level higher than a reference level indicates an insignificant microbial bioburden in the wound). The invention provides methods of diagnosis, prognosis and treatment of wound infection, and devices and kits for use in such methods.

Described herein are heterocyclic organic compounds of following formulae: More specifically, described herein are fused heterocyclic naphthalene compounds, polymers based on fused heterocyclic naphthalene compounds, methods for making these compounds, and uses thereof. The compounds described have improved polymerization and stability properties that allow for improved material processibility for use as organic semiconductors (OSCs).

The present invention provides an exhaust gas cleaning apparatus comprising a stack of plural material layers successively arranged on each other in a stacking direction, wherein the material layers are made of a porous material being permeable to the exhaust gas, wherein the stack has an entry side and an exit side; wherein plural exhaust gas flow channels are defined in the stacking direction between two adjacent material layers in the stack; wherein the exhaust gas flow channels are defined by surfaces of the material layers. which have a plurality of concave and convex areas; and wherein exhaust gas flow channels open at the entry side of the stack and closed at the exit side thereof are alternately arranged in the stacking direction. Further, a method for manufacturing an exhaust gas cleaning apparatus is provided, the method comprising the steps of: providing a material sheet made of a porous material which is permeable to the exhaust gas; folding the material sheet along folding lines; layering sections of the folded material sheet on each other such that a stack is formed; mounting the stack within a housing, the housing comprising an entry opening for the exhaust gas and an exit opening for cleaned exhaust gas.

Provided are: a high-tensile-strength hot-rolled steel sheet provided with both high strength and favorable workability (stretch flangeability), and moreover has superior material uniformity; and a method for producing same. The hot-rolled steel sheet has a tensile strength of at least 780 MPa, and has: a composition containing, by mass%, at least 0.03% and less than 0.07% of C, no greater than 0.3% of Si, 0.5-2.0% inclusive of Mn, no greater than 0.025% of P, no greater than 0.005% of S, no greater than 0.0060% of N, no greater than 0.1% of Al, 0.07-0.11% inclusive of Ti, and at least 0.08% and less than 0.15% of V in a manner such that Ti and V satisfy 0.18 <= Ti + V <= 0.24 (Ti and V being the amount contained (mass%) of the respective elements), the remainder comprising Fe and unavoidable impurities; a matrix such that the area ratio of ferrite phase with respect to the total structure is at least 95%; and a structure such that minute carbides containing Ti and V and having an average grain size of less than 10 nm are dispersed / precipitated, and the volume ratio of the minute carbides with respect to the total structure is at least 0.0020.

The invention belongs to the field of composite materials, and concretely relates to a nano-hydroxyapatite / carboxymethyl chitosan / poly(lactic-co-glycolic acid) micro-nano hybrid drug-loaded scaffold and a bionic preparation method thereof. The three-dimensional bionic hybrid drug-loaded scaffold is prepared through combining solvent evaporation and freeze drying technologies by using a high speed emulsifying machine via adopting nano-hydroxyapatite and carboxymethyl chitosan as a water phase and an emulsion continuous phase, adopting a methylene chloride solution of poly(lactic-co-glycolic acid) as an oil phase and an emulsion dispersion phase, using glutaraldehyde as a cross-linking agent to immobilize the carboxymethyl chitosan in the continuous phase and adopting the main component icariin in a traditional Chinese medicine epimeddium as a carrier drug. The preparation method has the advantages of simple preparation process and mild reaction conditions, and the obtained scaffold overcomes the performance defects of single natural polymer materials or synthetic polymer materials, has the advantages of intercommunicated pores, uniform pore diameter, figurability, slow drug release, good bone bonding ability and good biocompatibility, and is expected to become a new osteoporosis treatment composite material.

The invention belongs to the technical field of thermoelectric materials and discloses a preparation method of a polycrystalline SnSe thermoelectric material. The preparation method comprises the following steps: high-performance monocrystal is prepared with a monocrystal preparation method; the prepared high-performance monocrystal or a residual material obtained after the high-performance monocrystal is used is ground preliminarily into fine powder with grain size smaller than 500 mu m by a tool such as a mortar, a pulverizer and the like; the fine powder is refined into ultrafine powder with grain size being 0.2-20 mu m by a ball mill; the ultrafine powder is sintered into blocks by hot-pressing equipment or plasma spark sintering equipment. The performance of the polycrystalline thermoelectric material prepared from the residual material is better than that of the traditional polycrystalline material obtained through solid-phase synthesis; meanwhile, grains with proper sizes are refined by the mortar, the pulverizer and the ball mill, and the thermoelectric performance (zT) and the stability of the polycrystalline material can be improved.