摘要:
Turbostratic boron nitride (t-BN) powder having excellent sinterability. A mixture of boric acid anhydride and urea is charged in a reaction vessel together with alkali-borate, heated step by step in the vessel in an nonoxidizing gas atmosphere of one atmospheric pressure or above, and kept at a temperature from 850° C. to 950° C. to yield an intermediate product formal substantially of an amorphous boron nitride powder (first reaction step). Then the intermediate product is heated and kept at a temperature from 1200° C. to 1400° C. to crystallize crystalline t-BN, and the product is purified by washing with water and aqueous solution to obtain pure crystalline t-BN powder.
摘要:
A gas fuel filling lid device for a vehicle using a high-pressure gas as the fuel has a fuel filling opening for filling the vehicle with the high-pressure gas fuel, a lid openably attached to the vehicle and covering the fuel filling opening, and a cap for the fuel filling opening. The filling opening cap is fitted to the inner surface of the lid and is connected to and disconnected from the fuel filling opening in operative association with opening and closing of the lid. The structure prevents the user from forgetting to close the filling opening cap and facilitates the connection and disconnection of the filling opening cap.
摘要:
A slip angle differential value calculation unit 34 calculates a slip angle differential value of a body of a vehicle, a braking force application prohibiting unit 35 prohibits the application of braking force by a braking force application unit 33 when a yaw rate detection value takes a positive value and the sip angle differential value is a positive judgment threshold or more or when the yaw rate detection value takes a negative value and the slip angle differential value is a negative judgment threshold or less.
摘要:
A control apparatus for a web rotary printing press includes: a detector, located downstream of a former and provided halfway through a transport path for a web or a signature from the former to a chopper, for detecting the position of an end portion of the web on a side folded by the former; and a former and turn bar control device for adjusting the position, in the paper flow direction, of the former or the position, in the lateral direction, of the chopper in response to an output from the detector.
摘要:
An electronic cassette accommodating a sensor for converting radiation into an electric signal. A cable with a specific length is connected to a side surface of the electronic cassette. A connector that is connectable with a wireless communication unit or an external power source is provided at an end of the cable.
摘要:
Production of a hyaluronic acid gel, which comprises keeping hyaluronic acid in water at a hyaluronic acid concentration of at least 5 wt % in the presence of an acid component in an amount at least equimolar with the carboxyl groups in the hyaluronic acid.
摘要:
A semiconductor light emitting device includes a first conductivity-type first semiconductor layer; an emission layer; a second conductivity-type second semiconductor layer; and a second conductivity-type transparent substrate transparent to light beams from the emission layer and directly bonded to the second semiconductor layer. The transparent substrate has a parallel surface almost parallel to the emission layer on an opposite side of the emission layer, and an inclined surface adjoining the parallel surface and inclined to the parallel surface. Light beams totally reflected on the parallel surface and light beams totally reflected on a side surface of the transparent substrate come incident to the inclined surface at an angle smaller than the critical angle, and emit out of the semiconductor light emitting device.
摘要:
A light-emitting diode includes: a semiconductor substrate; and a layered structure, made of an AlGaInP type compound semiconductor material and provided on the semiconductor substrate. The layered structure includes: a light-emitting structure composed of a pair of cladding layers and an active layer for emitting light provided between the pair of cladding layers; and a current diffusion layer which is lattice-mismatched with the light-emitting structure. A lattice mismatch Δ a/a of the current diffusion layer with respect to the light-emitting structure defined by the following expression is −1% or smaller: Δa/a=(ad−ae)/ae where ad is a lattice constant of the current diffusion layer, and ae is a lattice constant of the light-emitting structure.
摘要翻译:发光二极管包括:半导体衬底; 以及由AlGaInP型化合物半导体材料制成并设置在半导体基板上的分层结构。 层状结构包括:由一对包覆层和用于发射设置在该对包覆层之间的光的有源层构成的发光结构; 以及与发光结构晶格失配的电流扩散层。 电流扩散层相对于由下式表示的发光结构的晶格失配Δa/ a为-1%以下:<?in-line-formula description =“In-line Formulas”end =“ 导数“?> Deltaa / a =(a sub> -a sub> / a <?in-line-formula description =”In 线公式“end =”tail“?>其中a是电流扩散层的晶格常数,并且λe是发光的晶格常数 结构体。
摘要:
A light-emitting diode includes: a semiconductor substrate; and a layered structure, made of an AlGaInP type compound semiconductor material and provided on the semiconductor substrate. The layered structure includes: a light-emitting structure composed of a pair of cladding layers and an active layer for emitting light provided between the pair of cladding layers; and a current diffusion layer which is lattice-mismatched with the light-emitting structure. A lattice mismatch Δa/a of the current diffusion layer with respect to the light-emitting structure defined by the following expression is −1% or smaller: Δa/a=(ad−ae)/ae where ad is a lattice constant of the current diffusion layer, and ae is a lattice constant of the light-emitting structure.
摘要翻译:发光二极管包括:半导体衬底; 以及由AlGaInP型化合物半导体材料制成并设置在半导体基板上的分层结构。 层状结构包括:由一对包覆层和用于发射设置在该对包覆层之间的光的有源层构成的发光结构; 以及与发光结构晶格失配的电流扩散层。 相对于由下式表示的发光结构的电流扩散层的晶格失配Deltaa / a为-1%以下:<?in-line-formula description =“In-line Formulas”end =“lead “?”>Δa/ a =(a-d e e e))<<<<---------“ 线公式“end =”tail“?>其中a是电流扩散层的晶格常数,并且λ是发光结构的晶格常数 。
摘要:
To provide a self-diagnosing apparatus for a refrigerator which self-diagnoses an operation condition and advises a user of an appropriate improvement action if there is an abnormal. First, a detector such as an internal temperature sensor detects a plurality of condition-indicative quantities with respect to the refrigerator, and the condition-indicative quantities are stored in a memory part for a predetermined period. A diagnostic device such as a diagnosis calculation value judging part compares the condition-indicative quantities or a diagnosis calculation value which is calculated based on the condition-indicative quantities with a predetermined threshold value, and judges whether the operation condition of the refrigerator is normal or abnormal based on a result of the comparison. At this stage, if the condition-indicative quantities covering the predetermined past period which are stored in the memory are used as the condition-indicative quantities for the diagnosis, it is possible to accurately diagnose without influence of a condition-indicative quantity which suddenly appears. When it is judged that there is an abnormal condition as a result of the diagnosis, an improvement action which is preliminary determined for the abnormal condition is selected. The selected action is displayed visually or as a sound by an outputting device such as a sound emitter. Where a re-diagnosis is executed after a predetermined time since the abovementioned diagnosis and the outputting device output the improvement action based on a result of the re-diagnosis, it is possible to diagnose with an enhanced reliability.