122results about How to "Appropriate structure" patented technology

In a semiconductor device, typically an active matrix display device, the structure of TFTs arranged in the respective circuits are made suitable in accordance with the function of the circuit, and along with improving the operating characteristics and the reliability of the semiconductor device, the manufacturing cost is reduced and the yield is increased by reducing the number of process steps. A semiconductor device has a semiconductor layer, an insulating film formed contacting the semiconductor layer, and a gate electrode having a tapered portion on the insulating film, in the semiconductor device, the semiconductor layer has a channel forming region, a first impurity region for forming a source region or a drain region and containing a single conductivity type impurity element, and a second impurity region for forming an LDD region contacting the channel forming region, a portion of the second impurity region is formed overlapping a gate electrode, and the concentration of the single conductivity type impurity element contained in the second impurity region becomes larger with distance from the channel forming region.

A ground high-temperature high-efficiency solar steam electricity-generating device includes a light convergence assembly (1), a heat exchanger assembly(3), a heat storage chamber assembly(5), a base assembly(2), an oil pump(15), a temperature-controlling valve(16), a steam turbine(13), temperature-controlling valve (16), a steam turbine (13), an electricity-generator (12), a system control circuit, a water pump (9) and a water tank assembly (10). The light convergence assembly (1) includes a glass plate (1-1), Fresnel lenses, a U-shaped groove (1-3), a thermal insulating material, a heat collecting pipe (1-5), high temperature heat conducting oil(6-6), a frame (1-7), a rib-plate and a spindle sleeve. The high temperature heat conducting oil(6-6) in the heat collecting pipe (1-5) is communicated with the heat exchanger assembly (3) and the heat storage chamber assembly (5), so that the warm water in the heat exchanger assembly (3) is quickly converted into high temperature steam which drives the steam turbine (13) and the electricity-generator (15) to generate electrical energy. The device can realize high solar utilization, high automaticity, simple structure, lower cost, small size, and is safe and reliable.

The invention belongs to a temperature sensor for high temperature measurement, and relates to a high-temperature temperature sensor based on a surface-modified tungsten-rhenium thermocouple for short-time temperature measurement below 2600 K. In the invention, a composite ceramic material is used as the protection film of the tungsten-rhenium thermocouple to prevent the change in the thermoelectric characteristics of the tungsten-rhenium thermocouple due to the erosion of oxidative gas. Through the film coating treatment, a composite high-temperature-resistant and anti-oxidant ceramic material grows on the surface of the tungsten-rhenium thermocouple to ensure the normal use of the thermocouple wire. Meanwhile, a special protection sleeve material is used to ensure a less comprehensive temperature measurement error during the temperature measurement of high-temperature air flow through theoretical analysis and numerical calculation. Therefore, the high-temperature temperature sensor is applicable to the high-temperature air flow environment and can keep the enough thermal strength to ensure the temperature measurement accuracy with the aid of a proper structure. In addition, the high-temperature temperature sensor has the advantages of high temperature resistance, high oxidation resistance, quick response and the like.

An insert-type barcode reader has a body support with an insertion slot for receiving a card with barcode. A circuit board and a CIS component module electrically connected to the circuit board with each mounted to the body support to scan and process signals. A roller is mounted to the body support for movement relative to the CIS component module to allow the card to be properly guided into the insertion slot and tightly pressed onto the CIS component for accurate scanning of the barcode on the card. Two photoelectric sensors mounted to the body support are electrically connected to the circuit board for sensing the card entering and leaving the insertion slot to control starting, running and stopping of the scanning function of the CIS component module.

The invention relates to machining equipment for structural components of an aircraft. The machining equipment is equipped with a machining station (1) which includes a locating device used for accommodating the structural components (3a, 3b) of the aircraft and enabling the structural components to move and a tool-equipped manipulator (4) of a preferably riveting machine (5a), wherein the manipulator (4) is set to enable the tool (5) to move, a working area of the machining station (1) is defined by such an area where the structural components (3a, 3b) of the aircraft accommodated by the locating device (2) can be machined through the tool (5). The machining equipment in the invention is characterized in that the machining equipment includes a loading area (7) which is separated from the working area (6) to be used for loading and/or unloading the structural components (3a, 3b) of the aircraft, and the machining equipment includes a driving device (9) which is set to enable the structural components (3a, 3b) of the aircraft which are accommodated by the locating device (2) to move particularly entirely between the working area (6) and the loading area (7). In addition, the invention relates to a method for machining the structural components of an aircraft.

The invention discloses a preparation method of 1,1,2,3,3-pentamethylindane. The method comprises the following steps: alpha-methylstyrene and2-methyl-2-butene undergo a cycloaddition reaction under the action of a novel supported porous metal-organic Pd catalyst, and the reaction product is continuously rectified to separate the product, wherein the catalyst is represented by Pd-X-Y-Z, X is selected from Cu, Co, Fe, Zn, Ni, W, Re, Ag and Cd, Y is selected from bipyridine, porphyrin, phenanthroline, Schiff bases, triazines and benzonitrile, Z is selected from carbon nanotubes, molecular sieves, neutral alumina, ordered mesoporous carbon and silica, the mass fraction of Pd is 5-20%, X is 20-40%, Y is 30-50%, and Z is 15-45%. The method using the catalyst makes the conversion rate greater than 90% and the selectivity greater than 80%, and the catalyst is stable and is not prone to lose during the cycloaddition reaction. The method of the invention has the advantages of simplicity in operation, and good economic benefits.

The invention discloses a porous plum-blossom-shaped pipe, and belongs to the technical field of high-molecular materials. The raw materials comprises the following substances in parts by weight: 45-55 parts of high-density polyethylene resin powder, 18-22 parts of low-density polyethylene resin powder, 4.5-5.5 parts of high-strength glass fiber, 0.45-0.55 parts of a property modification stabilizer, and 9-11 parts of a property modification filling material. The plum-blossom-shaped pipe is relatively smooth in inner wall, cables can directly pass through the pipe without using other utensils, and time and labor are saved; the plum-blossom-shaped pipe is resistant to acids and bases, resistant to salts and alkalis, resistant to corrosion, resistant to oxidation, resistant to ageing, suitable in structure, high in usage value, long in service life, green and environment-friendly, and helps to improve the construction speed and substantially reduce the construction cost of an engineering unit.

A zoom lens includes a positive first lens group, which is fixed during changing magnification and during focusing, a negative second lens group, which is moved during changing magnification, a positive third lens group, which is fixed during changing magnification and during focusing, a positive fourth lens group, which is moved during changing magnification and during focusing, and a negative fifth lens group, which is moved during changing magnification, which are in this order from an object side. A lens group constituting the first lens group consists of a negative front group and a positive rear group in this order from the object side. The second lens group consists of four lenses of a negative lens, a positive lens, a negative lens, and a positive lens or a negative lens arranged in this order from the object side.

The invention relates to a preparation method of a hard erosion resistant alumina fiberboard hearth material. Directed at the existing problems of loose structure, no resistance to high temperature and erosion, and short service life during application of current alumina fiberboards as high temperature electric furnace hearth materials, the invention adds a lot of alumina micropowder into aluminafibers and adds a silica sol as a binder. The materials are mixed into mud, which is then poured into a die for moulding. After natural air drying, drying, cutting processing and high temperature calcining, an erosion resistant, bending resistant, hard and high strength alumina fiberboard hearth material can be obtained. Used as a high temperature electric furnace hearth material, the hard erosion resistant alumina fiberboard hearth material of the invention can have a service life improved by over 6 times.

The invention discloses a dimethyl sulfide preparation method. The method is characterized in that hydrogen sulfide reacts with methanol in the presence of a catalyst to synthesize dimethyl sulfide, wherein the catalyst contains a molecular sieve with an MFI structure. The catalyst containing the molecular sieve with an MFI structure adopted by the method can effectively catalyze the reaction of hydrogen sulfide and methanol, realizes high dimethyl sulfide selectivity and high methanol conversion rate, and still realizes high dimethyl sulfide selectivity and high methanol conversion rate after long-period use.

The invention discloses an ecological sinking bed for deep polluted river treatment and in-situ remediation and a method thereof, and belongs to the field of environmental protection devices. The ecological sinking bed comprises a frame body, and the frame body is divided into plant planting areas located on the two sides and a filling area located in the middle. The plant planting area is used for planting aquatic plants, and the filling area is sequentially filled with zeolite, a solidified microorganism filler and a three-dimensional elastic filler from bottom to top in a layered mode. Theecological sinking bed is characterized in that the water body is purified in multiple modes by combining the physical adsorption and microbial degradation effects of the filler and the zeolite surface and the purification function of plants such as reeds, and a knife edge is designed for cutting the reeds, so that the problems of unfavorable conditions of easy damage, short tolerance time and thelike of floating beds due to large rain water flow speed and sun exposure and difficult recovery caused by rooting of the reeds are solved. The ecological settling bed is nontoxic and harmless in material, is not easy to damage, is durable, is convenient to recycle and reuse after finishing, and does not generate secondary pollution.

The invention discloses a preparation method of celadon. The celadon adopts a mineral substance raw material and a high polymer material to prepare a blank material and a glaze material, wherein the blank material comprises a component A, a component B and a component C. The preparation method comprises the following steps of S1, preparing the component A, the component B and the component C; S2,preparing a slurry of the blank material; S3, forming a blank body; S4, biscuiting the blank body, wherein the biscuiting comprises a first stage, a second stage and a third stage; the temperature interval of the second stage is 200 DEG C to 600 DEG C, the temperature rising speed is 1 to 2 DEG C/min during the period, the air pressure in a kiln is kept between 0.2 to 0.3MPa, and heat is kept for20 to 30 min when the temperature is risen to 600 DEG C; S5, preparing a glaze slip of the glaze material; S6, glazing; S7, glaze firing. The preparation method provided by the invention is not only low in production cost and suitable for batch production, but also beneficial to improving the yield through reasonably controlling the temperature rise speed, the air pressure in the kiln and the processing time of different stages such as biscuiting and glaze firing, so that the produced celadon is high in strength, not easy to break, fine and smooth in porcelain, and high in gloss.