摘要:
A NO.sub.x removal catalyst resistant to high temperatures, comprising an activated alumina wherein the specific surface area measured by the nitrogen adsorption method is 120 m.sup.2 /g or more, the bulk density measured by the mercury porosimetry is 0.60 g/cm.sup.3 or more, and the skeleton density measured by the mercury porosimetry is 1.80 g/cm.sup.3 or less and silver carried on said activated alumina. Then said catalyst or a structure having said catalyst coated on a substrate is brought in contact with exhaust gas from an internal combustion engine that is operated at a lean fuel/air ratio, such as a lean-burn engine, NO.sub.x can be removed efficiently within a quite short contact time.
摘要翻译:耐高温的NOx去除催化剂,其包含活性氧化铝,其中通过氮吸附法测得的比表面积为120m 2 / g以上,通过水银孔率法测定的体积密度为0.60g / cm 3以上, 通过水银孔率法测定的骨架密度为1.80g / cm 3以下,在所述活性氧化铝上承载银。 然后,所述催化剂或具有涂覆在基板上的所述催化剂的结构与来自以稀燃燃料发动机的贫燃料/空气比操作的内燃机的废气接触,可以有效地将NOx除去 相当短的接触时间。
摘要:
A NO.sub.x removal catalyst resistant to high temperatures, comprising an activated alumina wherein the specific surface area measured by the nitrogen adsorption method is 120 m.sup.2 /g or more, the bulk density measured by the mercury porosimetry is 0.60 g/cm.sup.3 or more, and the skeleton density measured by the mercury porosimetry is 1.80 g/cm.sup.3 or less and silver carried on said activated alumina. When said catalyst or a structure having said catalyst coated on a substrate is brought in contact with exhaust gas from an internal combustion engine that is operated at a lean fuel/air ratio, such as a lean-burn engine, NO.sub.x can be removed efficiently within a quite short contact time.
摘要翻译:耐高温的NOx去除催化剂,其包含活性氧化铝,其中通过氮吸附法测得的比表面积为120m 2 / g以上,通过水银孔率法测定的体积密度为0.60g / cm 3以上, 通过水银孔率法测定的骨架密度为1.80g / cm 3以下,在所述活性氧化铝上承载银。 当所述催化剂或具有涂覆在基板上的所述催化剂的结构与来自稀燃燃料发动机的贫燃料/空气比的内燃机的废气接触时,可以有效地将NOx除去 相当短的接触时间。
摘要:
An entering and leaving management system is provided. The management system includes a management terminal including: an authentication history information acquisition section configured to acquire authentication history information; a registered person image acquisition section configured to acquire a registered person image recorded associated with personal identification data of the authentication history information; an image acquisition section configured to acquire an image of a person to be authenticated, recorded associated with an authentication time of the authentication history information; and a listing section configured to list the registered person images and the image of the person to be authenticated on the operation screen side by side with the authentication history information.
摘要:
In a die-casting slide fastener slider having a plastically deformable, cantilevered pull-tab attaching lug on a slider body, the lug projects from an upper end of a guide post over an upper wing toward a rear end of the upper wing and terminates in a downward end projection spaced from the upper wing by a gap through which an attachment ring of a pull tab is threaded. The lug has a longitudinal hollow through its base to facilitate plastically deforming the lug to reduce the size of the gap after threading. In this structure, since first and second slide cores of a mold for die-casting the slide fastener slider can be inserted from the front and rear sides, it is possible to mold the lug without generating any parting line on its overall appearance.
摘要:
In a die-casting slide fastener slider having a plastically deformable, cantilevered pull-tab attaching lug on a slider body, the lug projects from an upper end of a guide post over an upper wing toward a rear end of the upper wing and terminates in a downward end projection spaced from the upper wing by a gap through which an attachment ring of a pull tab is threaded. The lug has a longitudinal hollow through its base to facilitate plastically deforming the lug to reduce the size of the gap after threading. In this structure, since first and second slide cores of a mold for die-casting the slide fastener slider can be inserted from the front and rear sides, it is possible to mold the lug without generating any parting line on its overall appearance.
摘要:
A slide fastener slider comprising: a slider body composed of upper and lower wings joined at their front ends by a guide post; a cantilevered attachment lug standing on an upper surface of the upper wing at its rear end and extending toward its front end; a pull tab having at one end an attaching ring adapted to be threaded on the attachment lug; a stop resiliently supported on the slider so as to normally come into contact with a front end of the attachment lug; and the guide post having in its upper surface a recess and defining between the recess and the front end of the attachment lug a gap that allows the attaching ring of the pull tab to pass through as pressing the stop away from the front end of the attachment lug.
摘要:
In a mold apparatus for simultaneously molding two cross-linked annular parts, having first through fourth split cores arranged in a cross pattern, firstly the adjacent first and second split cores are moved by first split core moving means as guided on fixed dies along a first sliding passageway perpendicularly in the mold opening and closing direction, and then the adjacent third and fourth split cores are moved toward and away from part of movable dies simultaneously when the part of the movable dies is moved toward and away in the mold opening and closing direction by guide means. At the same time, the third and fourth split cores are moved away from the molded product along a second sliding passageway by a link mechanism composed of arms.
摘要:
An entering and leaving management system is provided. The management system includes a management terminal including: an authentication history information acquisition section configured to acquire authentication history information; a registered person image acquisition section configured to acquire a registered person image recorded associated with personal identification data of the authentication history information; an image acquisition section configured to acquire an image of a person to be authenticated, recorded associated with an authentication time of the authentication history information; and a listing section configured to list the registered person images and the image of the person to be authenticated on the operation screen side by side with the authentication history information.
摘要:
A buckle comprising a rectangular frame including a pair of lateral frame members and a pair of first and second longitudinal frame members interconnected therewith and a substantially rectangular belt stopper pivotally mounted on the lateral frame members with a belt interposed between the belt stopper and the longitudinal frame members. As the belt stopper turns in one direction, one side of the belt stopper brings the belt into pressing engagement with the inner edge of the first longitudinal frame member.