149results about How to "Low temperature" patented technology

A silicon oxynitride film is formed on a target substrate by CVD, in a process field configured to be selectively supplied with a first process gas containing a chlorosilane family gas, a second process gas containing an oxidizing gas, and a third process gas containing a nitriding gas. This method alternately includes first to sixth steps. The first, third, and fifth steps perform supply of the first, second, and third process gases, respectively, while stopping supply of the other two process gases. Each of the second, fourth, and sixth steps stops supply of the first to third process gases. The third and fifth steps include an excitation period of supplying the second and third process gases, respectively, to the process field while exciting the respective process gases by an exciting mechanism.

A method for removing dissolved solids from a waste stream, such as that produced in flue gas scrubbing, through an evaporation-crystallization process operated at relatively low temperature. A waste stream is directed into an evaporator and heated at a temperature of less than 60° C. at a pressure below atmospheric pressure. The waste stream is concentrated through the evaporation process and forms a slurry stream having crystallized solids. At the low temperature of evaporation, the solids crystallize at substantially lower temperature and the solution has a substantially lower boiling point elevation than at atmospheric pressure. The slurry stream is directed to a solid-liquid separator where the crystallized solids in the slurry stream are separated, producing a solid cake and mother liquor.

An optical glass taking account of meltability and the moldability of a preform, having optical constants including a refractive index (nd) of at least 1.57 but less than 1.67 and an Abbe's number (νd) of over 55 but not more than 65, having the property of softening at a low temperature and being suitable as a glass for precision press-molding, the optical glass including an optical glass containing B₂O₃, SiO₂, La₂O₃, Gd₂O₃, an alkali metal oxide and an alkaline earth metal oxide as essential components, having a B₂O₃ and SiO₂ total content of 52% by weight or more and having an SiO₂/B₂O₃ content ratio of from 0.38 to 1.2, and an optical glass wherein the relationship of the refractive index (nd) and the Abbe's number (νd) satisfies the equation (1),

νd>260−126×nd  (1).

The invention relates to a high-precision and constant temperature and humidity cabinet, which is used for storing special articles. The temperature and humidity in the cabinet can be controlled within designated scope automatically and constantly. In the invention, a cooling/heating semiconductor high-temperature stacking is used as a temperature control and dehumidification executive component, an ultrasonic wave humidifier is used as a humidification executive component, and an electric temperature/humidity sensor, a series of fans, keys, a display, a controller and the like are mounted, thereby realizing constant temperature and humidity. When temperature inside the cabinet is higher than preset target temperature, the temperature control semiconductor high-temperature stacking generates forward current to reduce the temperature inside the cabinet; when temperature inside the cabinet is lower than the preset target temperature, the temperature control semiconductor high-temperature stacking generates reverse current to raise the temperature inside the cabinet to the preset target temperature; when humidity inside the cabinet is higher than preset target humidity, the dehumidification semiconductor high-temperature stacking generates forward current to reduce the temperature of a condensation block in the cabinet to be below the dew point, so as to enable moisture in the cabinet to condensate and flow into a water tank to realize dehumidification effect; and when humidity inside the cabinet is lower than preset target humidity, an ultrasonic wave humidifier sprays water mist to raise the humidity in the cabinet to the preset target humidity.

Provided are an arrangement capable of reliably preventing freeze of a PCV channel without requiring additional piping and an intake manifold having this arrangement. This arrangement for freeze prevention of a PCV channel includes a PCV channel returning blowby gas containing un-combusted fuel gas as a main component thereof and leaked into an engine to an intake port, an EGR channel returning exhaust gas exhausted from the engine to the intake port, and a heating portion as a common portion between a PCV outer wall of the PCV channel and an EGR outer wall of the EGR channel.

A gas sensor element designed to measure the concentration of gas such O₂ is provided. The gas sensor element is formed by a laminate of an oxygen ion conductive solid electrolyte layer made of zironia, a reference gas-exposed electrode, and a measurement gas-exposed electrode. The measurement gas-exposed electrode is made of a laminate of an outer electrode layer and an intermediate electrode layer. The outer electrode layer is made of metal or a mixture of the metal and zirconia. The metal is Pt, Ag, Rh, or Pd. The intermediate electrode layer is made of a mixture of zirconia and Pt, Ag, Rh, or Pd and greater in content of zirconia than the outer electrode layer. This structure results in increased reaction interfaces where the gas reacts with platinum particles and zirconia particles in the measurement gas-exposed electrode and the solid electrolyte layer, thereby ensuring higher catalytic activity and electrical conductivity.

A method of growing crystalline materials on two-dimensional inert materials comprising functionalizing a surface of a two-dimensional inert material, growing a nucleation layer on the functionalized surface, and growing a crystalline material. A crystalline material grown on a two-dimensional inert material made from the process comprising functionalizing a surface of a two-dimensional inert material, growing a nucleation layer on the functionalized surface, and growing a crystalline material.

A comprehensive localized therapy method and equipment for tumor features that various endoscopes are used to inject the magnetic immune microspheres carrying biologic medicine and the antineoplastic magnetic chemical medicine into tumor focus, the liquid radioactive source is poured in the inner cavity of catheter, and an alternative magnetic field is generated around the tumor focus to induce the microspheres to generate heat and adsorbing the antineoplastic medicine to round the tumor focus. Its advantage is the combination of biotherapy, chemicotherapy, radiotherapy and thermotherapy.

Greatly improved is an initial efficiency, which would be otherwise low as a fault, without reducing a magnitude of an initial charge capacity, which is a feature of a lithium secondary battery using an SiO as an negative electrode. A cycle characteristic is improved. In order to realize the improvements, a thin film of silicon oxide formed by vacuum vapor deposition or sputtering as an negative electrode active material layer 32 on a surface of a collector 31. The thin film is formed preferably by means of an ion plating method. The silicon oxide is SiOx (0.5≦x<1.0) and a film thickness is in the range of from 0.1 to 50 μm. A vacuum vapor deposition source that is used is an SiO deposit having a weight decrease percent (a rattler value) in a rattler test of 1.0% or less. In vacuum vapor deposition, the surface of the collector 31 is applied with a cleaning treatment in a vacuum or an inert atmosphere and thereafter, a thin film of silicon oxide is formed on the surface of the collector without exposing the surface of the collector to the air atmosphere.

A method for manufacturing high-quality single-walled carbon nanotubes on a glass substrate at relatively low temperatures includes: depositing a buffer layer on a glass substrate; depositing a catalytic metal on the buffer layer; placing the glass substrate having the catalytic metal formed thereon in a vacuum chamber and generating H₂O plasma inside the vacuum chamber; and supplying a source gas into the vacuum chamber and growing a carbon nanotube on the glass substrate.

The invention discloses a rapid construction method of an arched pipe truss. The rapid construction method comprises the following steps that (1) a BIM structural model of the arched pipe truss is established; (2) horizontal integrated pre-assembly and segment welding are performed in a factory for the pipe truss to form truss bodies to be transport to a site; (3) the truss bodies are assembled to form two main trusses; (4) in-span brackets are installed; (5) the two main trusses are lifted and welded to connect the two main trusses into the pipe truss; (6) the assembled pipe truss is lifted in place to complete installation of the pipe truss; (7) the steps 2-6 are repeated to form two pipe trusses, a secondary truss and a roof support are installed, so that the installed part forms a whole force system; and (8) the steps 2-7 are repeated until all pipe trusses are installed. According to the rapid construction method of the arched pipe truss, in-span vertical one-time splicing rapid construction of the arched pipe truss can be completed in the case of poor on-site site conditions, the risks of working at height are reduced, the construction period is ensured, the construction cost is saved, and multiple purposes are achieved at one stroke.

A medical system, including a catheter body, an expandable element coupled to the catheter body; a first electrically-conductive element coupled to an interior surface of the expandable element; and a second electrically-conductive element coupled to an exterior surface of the expandable element, where the first and second electrically-conductive elements form a capacitor with the expandable element.

A coating film is formed on a member to be etched, which includes an amorphous carbon film and a silicon oxynitride film, by a spin coating method; a sidewall core is formed by pattering the coating film; a silicon oxide film is formed to cover at least the side surface of the sidewall core; and an organic anti-reflection film is formed on the silicon oxide film by a spin coating method. Thereafter, an embedded mask is formed to cover concave portions of the silicon oxide film by etching the organic anti-reflection film; exposed is a portion of the member to be etched which does not overlap the sidewall core or the embedded mask by etching the silicon oxide film; and the member to be etched is etched. Thus, it is possible to obtain a pattern with a size less than the photolithography resolution limit.

A nitrogen oxide decomposing element and a nitrogen oxide decomposing apparatus can perform a treatment at a relatively low temperature without using a material, which is suspected to have influence on the environment and human body, as an oxidant or a catalyst. There is proposed a nitrogen oxide decomposing element 1 including a conductive solid electrolyte film 2 for selectively allowing a hydrogen ion to pass through, a first electrode layer 3 made of an electronic conductivity base material and a catalyst for accelerating anodic oxidation, a second electrode layer 4 made of an electronic conductivity basematerialandacatalystforacceleratingcathodicreduction, and a platinum group catalyst 6 supported by a porous metal oxide 5 disposed to be adjacent to the second electrode layer 4. A low-power consumption nitrogen oxide decomposing apparatus which can efficiently use electric energy is obtained by locating a nitrogen oxide sensor 14 in the vicinity of the platinum group catalyst 6 supported by the metal oxide 5, and controlling the magnitude of a current flowing between the first and the second electrode layers 3 and 4 and the energization time by a power source/control device 15 in accordance with the concentration of nitrogen oxide detected by the nitrogen oxide sensor 14.

A method for forming polycrystalline semiconductor film from amorphous semiconductor film at reduced temperatures and/or accelerated rates. The inclusion of a small percentage of semiconductor material, such as 2% within the metal layer, reduces the temperatures required for crystallization of the amorphous semiconductor by at least 50° C. in comparison to the use of the metal layer without the small percentage of semiconductor material. During a low temperature isothermal annealing process adjacent Al-2% Si and a-Si films undergo a layer exchange resulting in formation of a continuous polycrystalline silicon film having good physical and electrical properties. Formation of polycrystalline-semiconductor in this manner is suitable for use with low temperature substrates (e.g., glass, plastic) as well as with numerous integrated circuit and MEMs fabrication devices and practices.

A lithium ion secondary battery negative electrode slurry composition comprising a negative electrode active material, a thickening agent, a binder of polymer particles and water, wherein the negative electrode active material includes a carbon material and the carbon material has a graphite interlayer distance (an interplanar spacing (d value) of the (002) plane as determined by an X-ray diffraction method) of 0.340 to 0.370 nm, the thickening agent is a polymer having a degree of polymerization of 1400 to 3000, the polymer particles are obtained by polymerizing a monomer composition including 1 to 10 wt % of a monocarboxylic acid monomer, and an amount of acid groups on the surface of the polymer particles as determined by a conductivity titration is 0.1 to 1.0 mmol per 1 g of the polymer particles.

A method for stably dispersing microparticulated water insoluble bioactive polyphenol in a beverage by combining the bioactive polyphenol dissolved in an alkaline solution with an aqueous solution of at least one dispersion stabilizer. A composition comprising dispersed microparticulated water insoluble bioactive polyphenol(s) and a dispersion stabilizer.

The invention discloses a dephosphorization flocculating agent and a preparation method thereof. The dephosphorization flocculating agent is formed by compounding an inorganic flocculating agent and an organic flocculating agent. The raw materials of the inorganic flocculating agent comprise sodium ferrate, borax, ferrous sulfate, silicate or aluminate; the raw materials of the organic flocculating agent comprise modified chitosan or modified polyacrylamide. The preparation process comprises the following steps: firstly adding a non-oxidizing acid into the silicate or aluminate to obtain a polysilicate colloid or an aluminum hydroxide colloid, then adding a borax solution and a sodium ferrate solution sequentially while stirring, further dropping a ferrous sulfate solution, mixing to form the inorganic flocculating agent, standing, then adding the modified polyacrylamide or modified chitosan into the inorganic flocculating agent, curing and adding the acid till the pH value is less than 7 to obtain the finished dephosphorization flocculating agent. The flocculating agent is suitable for a wide range of water quality, is little affected by co-existing salts, the pH value of sewage and temperature and is particularly effective for dye wastewater, oilfield sewage and the like.

The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.

The invention relates to an acidic and transparent silicone weather-resistant sealant for construction, and belongs to the technical field of adhesives. The acidic and transparent silicone weather-resistant sealant is prepared from the following components in parts by weight: 50-150 parts of hydroxyl terminated polydimethylsiloxane, 20-140 parts of methyl terminated polydimethylsiloxane, 10-60 parts of fumed silica, 5-40 parts of a cross-linking agent, 0.05-0.5 part of a catalyst and 0.05-5 parts of a composite anti-yellowing agent. The acidic and transparent silicone weather-resistant sealant has the advantages of high strength, good adhesive performance, excellent weather resistance, quick crosslinking curing at room temperature and the like, and can be widely applied to weather-resistant sealing of glass curtain walls, glass daylighting roofs and other constructional engineering.

The invention relates to a preparation technology of efficient polymeric aluminum chloride for wastewater treatment. The preparation technology is mainly technologically characterized by comprising the following steps: with hydrochloric acid, aluminum hydroxide and a polymerization regulator as main raw materials, producing a liquid solution by a high-temperature, low-pressure and alkaline adjustment two step method; and producing powdery solid by a centrifuging or pressure spray drying and curing environment-friendly technology. The preparation technology disclosed by the invention is advanced in process, high in production efficiency, fast in purification speed, good in treatment effect, wide in application field, low in treatment cost, energy-saving and environment-friendly, and has important application and popularization values by adjusting the raw material ratio in production.

The invention discloses a chitosan/polyvinyl alcohol/ferroferric oxide composite magnetic particle as well as preparation and application thereof, and relates to a composite magnetic particle, which is formed by the following components in percentage by mass: 20-80% of chitosan, 10-75% of polyvinyl alcohol and the balance of ferroferric oxide. The particle diameter is 500-4000 micrometers and is controllable. The preparation method comprises the following steps: mixing a chitosan acid solution with a polyvinyl alcohol water solution; adding ferroferric oxide powder; dispersing ferroferric oxide powder in the mixed liquid to obtain a mixed liquid; adding a NaOH solution into the mixed solution; curing to ball-shaped particles; collecting the obtained ball-shaped particles through an outside magnetic field and adding the particles into ethanol; swelling and standing; soaking and washing, and drying to obtain the chitosan/polyvinyl alcohol/ferroferric oxide composite magnetic particle. As shown in experiment, the chitosan/polyvinyl alcohol/ferroferric oxide composite magnetic particle can be used in preparation of agents for removing heavy metal in water.

The invention relates to a servo acceleration meter based on differential infrared displacement sensing. The differential infrared displacement sensing servo acceleration meter is characterized in that: a shell is made of a soft magnetic material; a cylindrical detection quality block is sleeved outside a cylindrical permanent magnet; the cylindrical detection quality block is fixed on the shell by a spring; a plurality of magnetic driving coils are wound outside the cylindrical detection quality block; two ends of each magnetic driving coil are connected with a feedback current input port which is formed on the shell; a light blocking sheet is fixed on the cylindrical detection quality block; a light transmission hole is formed on the light blocking sheet; two sheet-like infrared receiving tubes are arranged on a supporting plate in parallel from up to down; the supporting plate is fixed on the shell; infrared transmitting tubes are arranged on the shell; the light transmission hole on the light blocking sheet is positioned between the infrared transmitting tubes and the infrared receiving tubes; and output terminals of the infrared receiving tubes are connected with an infrared displacement sensing signal output port through signal lines. The servo acceleration meter based on the differential infrared displacement sensing is characterized by simple structure, good low-frequency property, high measurement accuracy and high sensitivity.

The invention discloses a cylindrical air medium high-temperature thermostatic bath which comprises a shell, an insulating layer, an inner tank, an insulation cover plate, a temperature sensor, a heater, a motor and a temperature controller; the key points of the thermostatic bath lie in that: the internally lower part of the shell is provided with the motor and the temperature sensor; the upper middle part of the shell is provided with the inner tank; an output shaft of the motor runs through the insulating layer and the bottom of the inner tank, and is fixedly connected with a centrifugal fan blade at the bottom of the inner tank; the middle of the inner tank is fixedly provided with a porous uniform-temperature cylinder; a cylindrical air deflector and the heater are arranged between the inner tank and the porous uniform-temperature cylinder; the working medium of the inner tank is an air medium; the temperature sensor is arranged between the porous uniform-temperature cylinder and the cylindrical air deflector; the insulation cover plate covers an upper opening of the inner tank and is provided with small through holes used for inserting a standard thermometer and a thermometer to be detected. The bath successfully realizes the high-temperature thermostatic bath taking the air medium as the working medium and has the advantages of safety, environmental protection, multiple purposes, being economical and wide working temperature range.

In order to lower the substantial heating temperature of a thermosetting adhesive and to realize favorable connection reliability during connecting an electrical element to a circuit board by anisotropic conductive connection with using solder particles, a product in which solder particles having a melting temperature Ts are dispersed in an insulating acrylic-based thermosetting resin having a minimum melt viscosity temperature Tv is used as an anisotropic conductive adhesive in producing a connection structure by connecting the circuit board and the electrical element to each other by anisotropic conductive connection.

Disclosed herein is a refrigerator including: a cabinet configured to define a storage space; a barrier configured to divide the storage space into a refrigerating compartment and a freezing compartment and having an heat insulator therein; a depression part formed to be depressed in the barrier for the freezing compartment and configured to accommodate an evaporator and a blowing unit; and a barrier cover configured to shield the depression part for the freezing compartment, wherein the depression part includes an evaporator accommodating part configured to accommodate the evaporator, a blowing unit accommodating part formed to be stepped on a upper side of the evaporator accommodating part and configured to accommodate the blowing unit.

The present invention discloses a constant-temperature groove, which comprises a groove body (1) and is characterized in that the groove body (1) is divided into 2 cavities (2) including a left one and a right one, wherein circulation channels (3) are arranged on the upper end and the lower end between the cavities (2), a stirring oar (4) is arranged inside one of the cavities (2) and connected with an electrical machine (5). The groove body provided by the present invention is divided into 2 cavities, one of which is adopted as the working area, and the other is provided with the stirring oar inside to form a single circulation of the medium, thereby having simple structure, higher technical standard, and the temperature which is much more stable and even. As proved by the test carried out by National institute of metrology, the technical index of the present invention is superior to or meet the national standard, meanwhile the present invention adopts the stirring on the lateral of the working area, thereby preventing the stirring oar of the constant-temperature groove from being damaged by the fallen thermometer used to measure the temperature. The present invention has the advantages of a simple structure, small fluctuation of both the temperature and the maximum temperature difference, and the technical index superior to the national standard, etc.

Traditionally, sol-gel silicates have been reported as being high temperature processable at 400 C to give reasonably dense films that showed good leakage current densities (<5×10⁻⁸ A/cm²). Recently we have discovered that we are able to prepare films from particular combinations of sol-gel silicate precursors that cure at 135° C. to 250° C. and give good leakage current density values (9×10⁻⁹ A/cm² to 1×10⁻¹⁰ A/cm²) as well, despite the decrease in processing temperatures. These are some of the first examples of silicates being cured at lower temperatures where the leakage current density is sufficient low to be used as low temperature processed or solution processable or printable gate dielectrics for flexible or lightweight thin film transistors. These formulations may also be used in the planarization of stainless steel foils for thin film transistors and other electronic devices.

Disclosed herein is a transfer-laminating member including a heat-resistant base material, a release layer provided in part or in whole on the base material and a surface-protecting layer releasably provided on the release layer and formed by applying and drying a coating formulation with a material for forming the surface-protecting layer dissolved in an organic solvent, wherein the release layer contains particles and is formed by curing a mixture which includes a silicone resin, a melamine resin and an alkyd resin.

The invention provides a method for growing thallium bromide monocrystal by spontaneous nucleation, comprising the following steps of: 1) filling a thallium bromide material into a cylindrical ampoule with diameter of 8 to 15mm, vacuumizing, sealing, and processing one end of the ampoule into a cone with the cone angle between 15 and 45 degrees; 2) placing the ampoule into a vertical tube furnace with the conical end towards the bottom of the furnace, heating the vertical tube furnace to enable the temperature of the thallium bromide material in the conical tip not to be lower than the melting point of thallium bromide, raising the temperature from the conical tip upward to the inside of a top area of the thallium bromide material with the temperature gradient between 1.0 and 1.5 DEG C/mm, and then, insulating; 3) reducing the temperature of the tube furnace to between 450 and 460 DEG C at the speed between 1 and 5 DEG C/h; and 4) cooling the ampoule to room temperature along with the furnace. Because a heater and the ampoule are not required to be moved, the invention saves the complicated mechanical transmission device, simplifies the technology and reduces cost. The ampoule and the heater are both fixed, the temperature field is stable, heat inside the crystal and molten mass is uniformly distributed, a convex growth interface can be easily acquired, and the thallium bromide with good integrity and considerable size can be grown.