An exhaust emission control catalyst for diesel engines which comprises a carrier backing material, a metallic carrier layer formed on the surfaces of the carrier backing material and carrying thereon a catalytic metal, and a diffusion suppressing layer having a thickness of at most 170 νm and provided on a surface of the metallic carrier layer opposite to the carrier backing material.

Exhaust emission control catalyst for diesel engines

PROBLEM TO BE SOLVED: To prevent reduction in group control performance, by maintaining accuracy of learning data even when a service-stopping car exists.SOLUTION: A group control device 10 includes an operation management part 12 for managing an operation state of a plurality of cars and making traffic demand data for indicating present traffic demand, a preservation determining part 13 for determining whether the traffic demand data can be preserved as learning data based on operation information on the respective cars, a database part 14 for preserving the traffic demand data determined as being preservable as the learning data, a learning part 16 for making a control parameter for group control based on the learning data, and an allocation control part 11 for control operation of the respective cars in group control by using the control parameter for the group control.

Group control system of elevator

PROBLEM TO BE SOLVED: To provide a new manufacturing method for a slope materialSOLUTION: A floor material 18 having a square shape when viewed in a plane in which a tongue and a female tongue are formed is prepared; the floor material 18 is divided into two along a longitudinal direction to obtain long plates; and the rear face of one long plate is cut obliquely from one end edge in a shorter-side direction which becomes a rear end side of a slope material toward the other end edge in a shorter-side direction which becomes a tip part of the slope material to form a first cut surface, while the one end edge in a shorter-side direction is cut from the corner part on a surface side toward a rear face so as to be at a right angle to the first cut surface to a second cut surface The obtained slope material 10 has the first cut surface which is a contact area 11 coming into contact with a construction surface, the surface of the slope material which is an inclined plane 12, and the second cut surface which is a rear end face 13, thus having an approximately triangular cross-sectional shape as a whole The tongue (16) is formed at one end edge of the slope material 10 in the longitudinal direction, while the female tongue (17) is formed at the other end edge of the slope material 10 in the longitudinal direction, and two slope materials can be connected with each other in a longitudinal direction by fitting the tongue and the female tongue together

Manufacturing method for slope material, and barrier-free floor structure using slope material obtained by the manufacturing method

PURPOSE:To purify HC, CO and SOF, to reduce not only the discharge amount of a diesel particulate but also the discharge amount of sulfate and to prevent the poisoning of a catalytic metal. CONSTITUTION:A catalyst consists of a carrier base material 1, the activated alumina layer 2 formed to the surface of the carrier base material, the catalytic metal 3 supported on the activated alumina layer 2 and the coating layer 4 formed to the surface of the activated alumina layer 2 and composed of at least one component selected from alumina, titania and silica and oxide of at least one kind of a metal selected from Mn, Co, Sn, Fe, Ca, Ni, Ce, Zr, Mg and Cu is added to the coating layer 4.

ゆかり伊藤

Papers

Catalyst for purifying exhaust gas of diesel engine

ゆかり 伊藤

Papers

Catalyst for purifying exhaust gas of diesel engine

ゆかり伊藤