摘要:
A benzofuranyloxyphenylurea derivative having the formula: ##STR1## wherein X is a halogen atom or a trifluoromethyl group, n is an integer of from 0 to 2, Y is a hydrogen atom, a halogen atom or a trifluoromethyl group, R.sup.1 is a lower alkyl group, and R.sup.2 is a lower alkyl group, a lower alkenyl group, a lower alkynyl group or a lower alkoxy group. The compounds are useful as herbicides.
摘要:
A safety seat for children in which the forces generated during a collision are transmitted primarily to a main support pipe. The seat includes a seat body having a bottom portion, a backrest portion, side walls, upper arms and lower arms extending from the rear side of the backrest portion and having through-holes formed therein. A hollow main support pipe having a substantially L-shape from the side and a substantially U-shape from a front view is connected to the seat by upright portions thereof extending through the through-holes in the arms. Moving the main hollow support pipe up and down changes both the height and slant angle of the chair body in accordance with the shape of the automotive seat and size of the child. A seat belt passes through through-holes formed in the seat body and is attached to the main support pipe.
摘要:
There is provided a process for producing aerolein, acrylic acid, methacrolein, methacrylic acid in a safe and steady manner and in high yields, which avoids a phenomenon of occurrence of an abnormal reaction attributable to the fact that the temperature at a raw material gas outlet side becomes considerably higher than the temperature at a raw material gas inlet side, with regard to the temperature of a catalyst packed in a reaction tube at vapor-phase catalytic oxidation of propylene, isobutylene, or the like.In the process of using a reaction tube on which a plurality of catalyst layers formed in a raw material gas flow direction, a catalyst and a catalyst packing schedule are designed so that a relation between the raw material conversion rate at which the yield of the objective product becomes maximum and the raw material conversion rate at which a high and low correlation between maximum temperature of the catalyst layer present closest to a reaction gas inlet side Zin and maximum temperature of the catalyst layer present closest to a reaction gas outlet side Zout is reversed satisfies a specific condition of 0.5≦Cmax−Ccrs≦5, in which Cmax: a raw material conversion rate at which yield of the objective products becomes maximum; and Ccrs: a raw material conversion rate at which, when maximum temperature of the catalyst layer Zin is regarded as Tin, maximum temperature of the catalyst layer Zout is regarded as Tout, and the raw material conversion rate is changed, a high and low correlation between Tin and Tout is reversed.
摘要:
An interlayer insulating film containing oxygen and carbon is formed on a semiconductor substrate. A groove is formed in the interlayer insulating film. An auxiliary film containing predetermined first and second metallic elements is formed on a bottom surface and a sidewall of the formed groove. Then, an interconnect body layer containing copper is formed to fill the groove. By performing a thermal treatment, a first barrier film containing a compound of the first metallic element and an oxygen element of the interlayer insulating film, and a second barrier film containing a compound of the second metallic element and carbon element of the interlayer insulating film are formed on the interlayer insulating film on the bottom surface and the sidewall of the groove.
摘要:
A first rotary shaft and a second rotary are disposed such that they are rotatable around a rotation axis. The second rotary shaft has a cylindrical supporting part that covers the end section of the first rotary shaft. A case supports the first rotary shaft and the second rotary shaft. A first rolling bearing is disposed between the first rotary shaft and the case and supports the first rotary shaft such that it is rotatable. A second rolling bearing is disposed between the supporting part and the first rotary shaft and supports the first rotary shaft and the second rotary shaft such that they are rotatable relative to each other. A transmission part of the second rotary shaft transmits to the second rolling bearing a preload force that pushes the second rotary shaft to the first rotary shaft side. A load-receiving part of the case that receives the preload force transmitted from the second rolling bearing to the first rolling bearing.