59results about How to "Inhibition of thermal deterioration" patented technology

A thermal type flow sensor measures a flow rate of a fluid by means of a heat resistive element having a temperature dependency. The sensor is comprised of: plural heat resistive elements used for a flow rate measurement; and a driver circuit for controlling a current applied to these heat resistive elements to cause their heating. The driver circuit is configured to sense a resistance change of a lower-temperature side heat resistive element among the plural heat resistive elements and to control the current to be applied to the plural heat resistive elements in accordance with a sensed value of the lower-resistance's variation.

An object of the present invention is to provide an exhaust gas purification catalyst which can minimize the separation of the catalyst layer due to heat and vibration, can suppress thermal deterioration of the catalytic substance, and can exhibit excellent purification capabilities under severe conditions. Specifically, the present invention relates to an exhaust gas purification catalyst wherein an undercoat layer comprising a heat-resistant inorganic oxide having an oxygen-absorbing substance added thereto is formed on a surface of a metallic carrier, and a catalyst-carrying layer is formed on the undercoat layer.

A material for an organic electroluminescent device including an imine derivative represented by the following formula (Ia) or (Ib),

wherein Y¹ to Y⁴ are independently a carbon atom or a nitrogen atom; R¹ to R⁴ are independently hydrogen, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group or a cyano group; and R¹ and R², or R³ and R⁴ may be bonded together to form a ring.

A method for producing a heat-resisting compound oxide in which oxide particles are made to carry fine particles having a smaller particle diameter than that of said oxide particles. Said oxide particles or their precursor particles are charged to a potential inverse to that of said fine particles or their precursor particles so that said oxide particles adsorb said fine particles, and are then sintered to carry said fine particles. Thus, the fine particles can be homogeneously dispersed and firmly adhered to the surfaces of the oxide particles. As a result, the compound oxide is so excellent in heat resistance that it has little change, even subjected to a treatment such as a sintering, in the structure of the oxide particles for a carrier or in the adsorption state of the ultrafine particles, and has little thermal deterioration.

This invention provides a luminescent device comprising a blue fluorescent substance-containing fluorescent substance layer. The fluorescent substance layer comprises, as a blue fluorescent substance, an aluminate fluorescent substance comprising Ba, Sr, Eu, Mg, Al and O as constituent elements at an atomic ratio of Ba : Sr : Eu : Mg : Al : O = p : q : r : 1 : w : 17, wherein 0.70 = p = 0.95, 0 = q = 0.15, 0.05 = r = 0.20, p + q + r = 1, and 9.8 = w = 10.5. When the aluminate fluorescent substance is subjected to X-ray crystal structure analysis on the assumption that the aluminate fluorescent substance belongs to a space group P63/mmc, the aluminate fluorescent substance has a linear bond function s of not more than 1 as calculated by s = -11622 + 2043.07La + 199.24L1 - 116.91L2 wherein La represents a lattice constant, AA; L1 represents atomic distance between Al(2) and O(5), AA; and L2 represents atomic distance between Al(1) and O(4), AA.

The present invention pertains to a master batch composition which contains 10 to 95% by mass of an additive for plastics, 1 to 50% by mass of an olefin polymer having specific physical properties, and 1 to 89% by mass of a polyolefin resin as a carrier, which is useful for producing a polyolefin resin, particularly an injection molded product of a polypropylene resin, which can improve dispersibility of additives in the polyolefin molded product, which permits high density filling of various additives in the master batch composition, and which is free of blocking. The present invention is also directed to a polyolefin resin composition in which the master batch composition is compounded in a polyolefin resin, and to a polyolefin molded product using the resin composition.

To provide a hybrid power source system in which either a solar cell or a fuel cell and a secondary cell are combined with each other, and the secondary cell is used as an electric power buffer and which can maintain a high energy efficiency even when there is a change in a charging state of the secondary cell, a change in an operating condition, or a secular change in a member, prevent overcharging of the secondary cell, and suppress thermal deterioration of the solar cell or the fuel cell due to generation of a surplus electric power unable to be taken out. A hybrid power source system is composed of a solar cell module 1 or a fuel cell module, a DC/DC converter (2) which supplies a suitable voltage to a load (3) and a secondary cell (4) after converting an electric power generated by the module into the suitable voltage, the secondary cell (4), and a shunt circuit (a constant voltage diode (6) or a shunt regulator IC) which is connected in parallel with the secondary cell (4), and which, when the secondary cell (4) is substantially in a full charging state, transforms substantially all of a surplus electric power which is not consumed in the load (3), of the generated electric power, into heat to abandon the resulting heat.

A production method for a low molecular weight polymer suitable for a melt-blown non-woven fabric and a production device for melt-blown non-woven fabric, with which a high molecular weight polymer can be reduced in molecular weight by applying a shear force to the high molecular weight polymer without adding an additive. The low molecular weight polymer and the melt-blown non-woven fabric are produced using a continuous high shearing device that applies a shear force to the high molecular weight polymer serving as a raw material by rotation of a screw body to reduce the molecular weight of the high molecular weight polymer so as to obtain a low molecular weight polymer, and cools the low molecular weight polymer by passing the low molecular weight polymer through a passage arranged in the axial direction inside the screw body.

The invention provides a spinning assembly. In a spinning assembly without using granulous filtering materials, sufficient refining of gel-shaped parts of polymer, reduction of residence time of the polymer in the assembly and uniformization of spun-out volume of the polymer among multiple nozzles are achieved. The spinning assembly (4) is provided with a polymer flowing-in part (43), a filter (44) and a spinning nozzle (45). The polymer flowing-in part is provided with a guiding-in part (47) with to-be-guided-in fused polymer and a buffering space (49) directly connected to the guiding-in part (47) via a polymer supplying hole (43a). The filter is disposed to the lower part of the buffering space (49). The spinning nozzle is connected with the filter (44) and multiple nozzles (54) for separately spinning out fused polymers passing through the filter (44) are formed on the spinning nozzle (45). The filter (44) also comprises a first filtering layer (51) which is formed via sintering of metal short fibers with polygonal cross sections.

The objective is to provide a mounting method of a video sensor capable of attaining solder reflow in a state that an adhesive tape is adhered to a light receiving side of the video sensor and protecting the light receiving side of the video sensor even during the solder reflow in a mounting step of the video sensor employing a solid-state imaging device and to provide the protective adhesive tape used for the method. The mounting method is characterized in that solder connection reflow is applied to terminals of the video sensor with a board side by heating the terminals at a temperature of 170 [deg.]C or over while the adhesive tape employing a polyimide film for a configuration material of the its material is adhered to the light receiving side of the video sensor, the adhesive tape having an adhesive coated on one side and an anti-static agent coated on the other side. Further, at least a silicone group material is characterized in to be used for the adhesive configuration material of the adhesive tape.

In this exhaust gas purification system 20 for an internal combustion engine, a lean NOx trap catalyst device 24 is provided to an exhaust passage 15 of an engine 10. A control device 40 for controlling the exhaust gas purification system 20 is configured such that a desulfurization temperature Tt, which serves as a target temperature for when performing desulfurization control on the lean NOx trap catalyst device 24, is set so as to correspond to the sulfur storage amount Sa stored in the lean NOx trap catalyst device 24. As a result, an exhaust gas purification system for an internal combustion engine, an internal combustion engine, and an exhaust gas purification method for an internal combustion engine are provided, with which, when desulfurization control is performed on the lean NOx trap catalyst device provided to the exhaust gas purification system for an internal combustion engine, desulfurization treatment is reliably performed while heat deterioration and erosion of the lean NOx trap catalyst device are inhibited, and desulfurization control exhibiting excellent robustness is performed, and thus a high NOx purification rate is maintained.

A catalyst regeneration processing apparatus for an internal-combustion engine includes an electronic control unit. The electronic control unit is configured to determine whether a gap is equal to a predetermined degree or less, the gap being a difference between (a) a progress degree of heat deterioration of a NOx catalyst in a predetermined time in a case of assuming that a regeneration process is executed for the predetermined time and (b) a progress degree of heat deterioration of the NOx catalyst in the predetermined time in a case of assuming that the regeneration process is not executed. The electronic control unit is configured to execute the regeneration process in a case of determining that the gap is equal to the predetermined degree or less, even when a sulfur poisoning quantity does not exceed a permissible upper limit quantity.

Provided is an assembled wire 10 having a substantially rectangular cross section, and is formed by assembling a plurality of strands 7. Each strand 7 has a conductor portion 11 and a strand insulating layer 13 covering the conductor portion 11. The strand insulating layer 13 preferably contains at least one kind of resin in which 50% weight loss in Tg-DTA occurs at from 300° C. to 500° C. The strand insulating layer 13 contains particles. The particles are particles having volume resistivity of 1×10⁶ Ω·cm or more, and, for example, inorganic substances such as silica, titania, alumina, aluminum nitride, magnesium oxide, silicon nitride, and silicon carbide; and resins such as silicone are applicable.