摘要:
A road surface specially designed to enhance skidding includes an asphalt mixture containing a plurality of substantially spherical coarse aggregates, said aggregates having a randomly continuous shape on their upper surface. A method to provide this surface involves replacing a road having an asphalt coating with the road surface of the present invention.
摘要:
A method of supplying cartons to a carton-packaging machine, comprising the steps of providing flattened cartons stacked in a line in a container package so that two cutouts on the cartons are lined to form two grooves on two parallel sides of the cartons; inserting two bar-shaped forks into the grooves respectively in the stacking direction of the cartons; pressing the cartons to be together along the inserting direction of the bar-shaped forks by pressers, which are adjustable for a different stacking amount of the cartons, so that the cartons are placed at the central portion of the bar-shaped forks; pulling out the cartons from the package with the bar-shaped forks; and supplying the cartons to the carton-packaging machine with the bar-shaped forks.
摘要:
A negatively chargeable toner for use in dry electrophotography, said toner comprising (A) a resinous binder composed of at least one resin selected from copolymers of styrene and/or alpha-methylstyrene with alkyl (meth)acrylates, (B) 2 to 10 parts by weight, per 100 parts by weight of the resinous binder, of a copolymer containing a sulfonic acid group, said copolymer having a weight average molecular weight of from 2,000 to 15,000 and composed of 80 to 98% by weight of recurring units represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, and 20 to 2% by weight of recurring units represented by the formula ##STR2## and (C) a coloring agent.
摘要:
A webbing for a safety belt includes a main part and selvedges extending along both sides of the main part. The denier size of warp threads in at least one of the selvedges is smaller than the denier size of warp threads in the main part and decreases stepwise toward the outermost warp thread in the selvedge. The outermost warp thread has a denier size either equal to or smaller than the denier size of weft threads. The weft threads are made of threads having a higher heat shrinkage percentage than the warp threads in the main part.
摘要:
A method for the treatment of rubber and plastic wastes, comprising in series the steps of1. heating and melting rubber and plastic wastes at a temperature (T.sub.1) to extrude the molten wastes with one or a plurality of extruders into one or a plurality of decomposing zones,2. heating the molten wastes in the decomposing zone at a higher temperature (T.sub.2) than the heating temperature (T.sub.1) in the extruder to prepare decomposed products while optionally separating residues therefrom,3. introducing the decomposed products into a dry-distilling zone while optionally heating the separated residues in a residue removal zone at an even higher temperature (T.sub.3) than the heating temperature (T.sub.2) in the decomposing zone to remove the residues from the residue removal zone when residues are separated in the decomposing zone,4. heating the decomposed products in the dry-distilling zone at a lower temperature (T.sub.4) than the heating temperature (T.sub.2) in the decomposing zone to gasify the products by dry-distillation, and5. cooling the dry-distilled products in a cooling zone to separate liquid materials from gaseous materials; and an apparatus for treatment of rubber and plastic wastes, comprising in series1. an extruder or a plurality of extruders for heating and melting rubber and plastic wastes to extrude the molten wastes, each extruder being connected with a decomposing means in series,2. a decomposing means or a plurality of decomposing means for heating the molten wastes to prepare decomposed products while optionally separating residues therefrom, each decomposing means being connected with the above extruders in series,3. a dry-distilling means for gasifying the decomposed products by dry-distillation, and4. a cooling means for cooling the dry-distilled products to separate gaseous materials from liquid materials, the decomposing means being optionally provided with a residue removal means as a ranch at the outlet thereof, for removing the residues from the decomposing means after the decomposed products contained in the residues have been separated therefrom, with the temperatures of each of the extruders, the decomposing means, the dry-distilling means and the residue removal means being controllable individually.
摘要:
An exhaust gas controlling catalyst includes zirconia particles; ceria particles which contact the zirconia particles, of which a mean particle size is smaller than a mean particle size of the zirconia particles; and an active metal that is supported on at least the ceria particles in a dispersed manner.
摘要:
Provided is a step-shaped drill bit including at least two stepped cutting edges that are axially provided. A cutting edge of a first step from a tip is formed so as to satisfy at least one of the following conditions. That is, a number of blades is smaller, a point angle of the cutting edge is larger, or a clearance angle of the cutting edge is larger than that of cutting edges of a second and subsequent step(s). As a result, a thrust resistance during a perforation can be reduced compared with a case in which the first step cutting edge is formed such that the number of blades, the point angle of the cutting edge and the clearance angle of the cutting edge are the same as those of the second and subsequent step(s).
摘要:
An exhaust gas control apparatus for an internal combustion engine includes: a NOx purification catalyst arranged in an exhaust passage of the internal combustion engine; a degradation degree estimating unit estimating a degradation degree of the NOx purification catalyst; and an air-fuel ratio control unit adjusting an air-fuel ratio of exhaust gas flowing into the NOx purification catalyst, wherein, until the estimated degradation degree of the NOx purification catalyst reaches a predetermined degradation degree, the air-fuel ratio control unit adjusts the air-fuel ratio of the exhaust gas to a rich air-fuel ratio, and, when the estimated degradation degree of the NOx purification catalyst exceeds the predetermined degradation degree, the air-fuel ratio control unit changes the air-fuel ratio of the exhaust gas from the rich air-fuel ratio to a lean air-fuel ratio so that the NOx purification catalyst is regenerated.
摘要:
The invention relates to an exhaust gas purification device of an internal combustion engine comprising a catalyst (45) having an active element and a composite oxidation which carries the active element in an exhaust passage (40), the active element transforming into the composite oxide as a solid solution when the catalyst temperature is higher than or equal to a predetermined solid solution temperature and the atmosphere of the interior of the catalyst is an oxidation atmosphere and the active element precipitating from the composite oxide when the catalyst temperature is higher than or equal to a predetermined precipitation temperature and the atmosphere of the interior of the catalyst is a reduction atmosphere. According to the invention, in case that the performance of the fuel supply stop control is inhibited when the catalyst temperature is higher than or equal to the performance inhibiting temperature, a temperature lower than a base temperature of the performance inhibiting temperature is set as the performance inhibiting temperature while the use degree of the catalyst is lower than or equal to a predetermined degree and in case that the performance of the fuel supply amount increase control is permitted when the catalyst temperature is higher than or equal to a performance permitting temperature, a temperature higher than a base temperature of the performance permitting temperature is set as the performance permitting temperature while the use degree of the catalyst is smaller than or equal to the predetermined degree.