摘要:
A spark plug includes a housing portion; an insulator that is retained in the housing portion; a center electrode that is exposed from the insulator; and a ground electrode that forms a discharge gap between the ground electrode and the center electrode. A plug pocket is formed between the housing portion and the insulator. In the spark plug, a tapered portion is provided on an inside of one of two portions of a tip end portion of the housing portion that face each other in a radial direction of the housing portion, and the ground electrode is provided on the other portion.
摘要:
Crystalline particles of N-(17-cyclopropylmethyl-4,5α-epoxy-3,14-dihydroxy-morphinan-6β-yl)-phthalimide or a pharmaceutically acceptable salt thereof are disclosed. The crystalline particles have a particle diameter distribution in which a particle diameter (D50) at the point where cumulative frequency of volume distribution cumulatively calculated from particles having a smaller diameter reaches 50% is within a range of 1 to 30 μm, and a particle diameter (D90) at the point where cumulative frequency of volume distribution cumulatively calculated from particles having a smaller diameter reaches 90% is not more than 90 μm, which crystalline particles have a degree of crystallinity of not less than 80%. By the crystalline particles, bioavailability of the active substance may be increased while ensuring storage stability of the compound.
摘要:
A solder bonding metal layer which is formed on a circuit board comprises a metal layer having a mixture of first metal which is easily wetted with metals constituting the solder and which easily forms alloy or intermetallic compounds and of second metal which is not wetted easily with the above solder and not melted. In this case, a concentration gradient that the concentration of the first metal is high on the bonding surface may be formed in the metal layer. A circuit board having a solder bonding metal layer which keeps good bonding even after many times of repairs and improves the reliability is realized.
摘要:
In an impeller 11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet 29 is formed in the lower part of the inlet portion, and an outlet is formed in the side face of the outlet portion. The inlet portion and the outlet portion are partitioned by a flange portion 40. The impeller 11 includes a primary vane 36 and a secondary vane 38. The primary vane 36 defines a spiral primary channel 35 that connects the inlet 29 and the outlet. The secondary vane 38 is formed in a shape that a part of the outer periphery of the outlet portion is gouged inward so as to define a secondary channel 37 connected to the primary channel 35 and extending circumferentially around the outer periphery.
摘要:
When the necked portion is formed at the end of the pipe material by the spinning method, working rollers are restricted so as to return immediately before the pipe end instead of being allowed to axially move beyond the end of the working object pipe. The diameter reduction amount of the pipe end is set smaller than that of the most diameter reduced portion connecting to the pipe end. A protruding portion of so-called bellmouth shape is formed at the working end, thereby preventing generation of fractures originated from the working end of the base portion or the welded portion and generation of wrinkles during the spinning.
摘要:
A laser ignition system includes a laser oscillator and an oscillation controller. The laser oscillator is configured to generate laser light into a combustion chamber of an engine. The oscillation controller is configured to cause the laser oscillator to generate a plurality of laser pulses into the combustion chamber in order to ignite the engine. The oscillation controller causes the laser oscillator to generate each of the plurality of laser pulses at a laser oscillation period that is longer than 10 μs and shorter than 300 μs.
摘要:
Provided is a spinning method of reducing a diameter of a work piece pipe body with processing rollers disposed on an outer surface of the work piece pipe body, the processing rollers being configured to be relatively revolved around the work piece pipe body, wherein, when the processing rollers are axially reciprocated while being moved in a radius direction of the work piece pipe body, wherein the diameter reducing process with the processing rollers is performed under a state in which a wound body formed of an elastic sheet-like material is inserted as a core body into the inside of a portion of the work piece pipe body to be subjected to the diameter reducing processing.
摘要:
In an impeller 11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet 29 is formed in the lower part of the inlet portion, and an outlet is formed in the side face of the outlet portion. The inlet portion and the outlet portion are partitioned by a flange portion 40. The impeller 11 includes a primary vane 36 and a secondary vane 38. The primary vane 36 defines a spiral primary channel 35 that connects the inlet 29 and the outlet. The secondary vane 38 is formed in a shape that a part of the outer periphery of the outlet portion is gouged inward so as to define a secondary channel 37 connected to the primary channel 35 and extending circumferentially around the outer periphery.
摘要:
Provided is a spinning method of reducing a diameter of a work piece pipe body with processing rollers disposed on an outer surface of the work piece pipe body, the processing rollers being configured to be relatively revolved around the work piece pipe body, wherein, when the processing rollers are axially reciprocated while being moved in a radius direction of the work piece pipe body, wherein the diameter reducing process with the processing rollers is performed under a state in which a wound body formed of an elastic sheet-like material is inserted as a core body into the inside of a portion of the work piece pipe body to be subjected to the diameter reducing processing.
摘要:
Crystalline particles of N-(17-cyclopropylmethyl-4,5α-epoxy-3,14-dihydroxy-morphinan-6β-yl)-phthalimide or a pharmaceutically acceptable salt thereof are disclosed. The crystalline particles have a particle diameter distribution in which a particle diameter (D50) at the point where cumulative frequency of volume distribution cumulatively calculated from particles having a smaller diameter reaches 50% is within a range of 1 to 30 μm, and a particle diameter (D90) at the point where cumulative frequency of volume distribution cumulatively calculated from particles having a smaller diameter reaches 90% is not more than 90 μm, which crystalline particles have a degree of crystallinity of not less than 80%. By the crystalline particles, bioavailability of the active substance may be increased while ensuring storage stability of the compound.