摘要:
The present disclosure provides an exhaust gas purification catalyst having an improved Rh activation, which comprises a substrate and a catalyst coat layer formed on the substrate, the catalyst coat layer having a two-layer structure, wherein the catalyst coat layer includes an upstream portion on an upstream side and a downstream portion on a downstream side in an exhaust gas flow direction, and a part or all of the upstream portion is formed on a part of the downstream portion, wherein the upstream portion contains Rh fine particles and Pt, wherein the Rh fine particles have an average particle size measured by a transmission electron microscope observation of 1.0 nm or more to 2.0 nm or less, and a standard deviation σ of the particle size of 0.8 nm or less, and wherein the downstream portion contains Rh.
摘要:
Provided is a short-circuit isolator capable of earlier detection of recovery from short circuit of a disconnected line and reconnecting the line. The short-circuit isolator includes: a switch for switching a connection state between a primary signal line and a secondary signal line; a short-circuit monitor circuit which is connected to a primary wiring of the switch through a resistor as a current limiting section and connected to a secondary wiring of the switch, for detecting short circuit when a voltage of the secondary signal line is lower than a short-circuit detection threshold and detecting recovery from the short circuit when the voltage of the secondary signal line is higher than a short-circuit recovery threshold which is a voltage value lower than the short-circuit detection threshold after the short circuit is detected; and a switch control section for turning off the switch when the short circuit is detected by the short-circuit monitor circuit and turning on the switch when the recovery from the short circuit is detected by the short-circuit monitor circuit.
摘要:
A cab for a construction machine includes a pillar member and a beam member. The pillar member is disposed generally along a vertical direction, and includes a cutout portion and a protruding portion. The cutout portion is formed on an upper end thereof. The protruding portion is formed on the upper end on an inner side of the cutout portion with respect to a widthwise direction of the cab. The beam member is disposed generally along a direction perpendicular to the vertical direction. The beam member is joined to the pillar member with the beam member partially overlapping the cutout portion on the upper end of the pillar member in a plan view, and a lateral surface of the beam member abutting against the protruding portion.
摘要:
Provided is an audible alarm device including a piezoelectric buzzer, which is capable of suppressing wasted current consumption not contributing to increased sound pressure of the piezoelectric buzzer. The audible alarm device includes: a piezoelectric buzzer; a coil connected in parallel to the piezoelectric buzzer; a current limiting means for adjusting a current supply period for the piezoelectric buzzer and the coil, and limiting a current to the coil during current supply; and a control circuit for controlling on/off time of the current limiting means.
摘要:
A pipe expanding device inserts a pipe expanding punch into an opening end portion of a steel pipe with a special shape in the state where the opening end portion of the steel pipe with a special shape is pressed in an insertion direction of the punch.
摘要:
Imaging forming apparatus includes an image bearing member, an image formation unit for forming an image on the image bearing member, and a detection unit for detecting a voltage-current characteristic between the image bearing member and the charging member. The image formation unit has a charging member contactable to the image bearing member to charge the image bearing member. An image formation condition for the image bearing member is determined on the basis of a plurality of detection operations of the detection unit.
摘要:
A cab includes left and right rear pole members having internal spaces and prescribed shapes in cross-section. The right rear pole member includes a first hole portion that extends along the longitudinal direction of the right rear pole member and penetrates the right rear pole member in the left-and-right direction of the right rear pole member, and a first plate-shaped member inserted into and secured in the first hole portion.
摘要:
A reinforcement structure for a pipe includes a hole section and a plate member. The hole section is formed on an outer peripheral surface of the pipe along a longitudinal direction of the pipe to pass through a peripheral wall of the pipe to reach an interior portion of the pipe. The plate member is inserted in the hole section and secured to the pipe.
摘要:
A reinforcement structure for a pipe includes a hole section and a plate member. The hole section is formed on an outer peripheral surface of the pipe along a longitudinal direction of the pipe to pass through a peripheral wall of the pipe to reach an interior portion of the pipe. The plate member is inserted in the hole section and secured to the pipe.