Abstract:
Provided is a pneumatic tire having a tread surface in which two circumferential direction main grooves continuous in a tire circumferential direction are arranged on left and right sides of a tire center, and land portions are defined by the circumferential direction main grooves as ribs or blocks having lug grooves. Multiple fine grooves are provided in each of right and left walls of the circumferential direction main groove, the fine grooves being inclined to the tire circumferential direction and provided in regions along the circumferential direction main groove, covering at least 50% of the entire circumference thereof in total. In each of the two circumferential direction main grooves on corresponding tire shoulder sides, the fine grooves in the right and left walls are inclined to the tire circumferential direction in the same direction in a plan view in a tire radial direction. In each of the two circumferential direction main grooves on a tire center side, the fine grooves in the right wall and those in the left wall are inclined to the tire circumferential direction in directions opposite to each other in a plan view in the tire radial direction.
Abstract:
In a pneumatic run flat tire in which an inner side reinforcing rubber layer having a falcated cross-section is disposed in a side wall portion, dynamic elastic moduli E′10A, E′10B, and E′10C and values T10A, T10B, and T10C of a tan δ at 60° C. of rubber compositions of each region of the inner side reinforcing rubber layer are configured so as to satisfy the relationships E′10A
Abstract:
A side wall reinforced run flat tire, wherein a second carcass layer that does not reach a bead core is disposed along the outer peripheral surface of a carcass layer. A position of an outer peripheral edge of a bead filler, a relationship between a rubber thickness Gc of the inner side and a rubber thickness Ga of an outer side taken on the line X normal to the rim line and centered on the carcass layer, a relationship between the rubber thicknesses Ga and Gb of the side wall rubber in an upper region of a bead portion, and a position of a folded up end of the carcass layer are each stipulated.
Abstract:
A current injection-type diamond ultraviolet light-emitting device is provided that achieves the diamond free exciton recombination radiation by forming electrodes on a high-quality diamond crystal and applying a DC voltage between electrodes to inject carriers. A diamond crystal can be selected in terms of photoluminescent spectrum at room temperature and the half width of the Raman scattering peak intrinsic to the diamond.
Abstract:
A run flat tire where: the ratio of the cross-sectional height on the inner side in the radial direction to the cross-sectional height on the outer side in the radial direction, having the maximum tire width in a state inflated to an air pressure as a boundary; the inclination angle of the outer wall in the upper region of the side wall portion; the curving form of the tread surface; the position of the carcass folded over end; the height of the bead filler; the relationship between the thickness of the outer side rubber taken on a line normal to the rim line and the maximum thickness of the outer side rubber in an upper region of the bead portion; and the relationship of the thickness of the inner side rubber and the thickness of the outer side rubber taken on a line normal to the rim line are stipulated.
Abstract:
A run flat tire with reinforced sides, wherein inner and outer rubber thickness ratios centered on a carcass layer in a side wall portion are stipulated and a side filler extending in the tire radial direction is embedded on the outer wall surface side of the side wail portion. In this run flat tire, the modulus of the side filler/modulus of a side reinforcing layer, the modulus of a rim cushion/a modulus of the side filler, the cross-sectional area of a bead filler/cross-sectional area of the side filler, the cross-sectional area of the side filler/cross-sectional area of the side reinforcing layer, the rubber hardness of the side reinforcing layer, and the material of belt cover layers are each stipulated.
Abstract:
A run flat tire where: the ratio of the cross-sectional height on the inner side in the radial direction to the cross-sectional height on the outer side in the radial direction, having the maximum tire width in a state inflated to an air pressure as a boundary; the inclination angle of the outer wall in the upper region of the side wall portion; the curving form of the tread surface; the position of the carcass folded over end; the height of the bead filler; the relationship between the thickness of the outer side rubber taken on a line normal to the rim line and the maximum thickness of the outer side rubber in an upper region of the bead portion; and the relationship of the thickness of the inner side rubber and the thickness of the outer side rubber taken on a line normal to the rim line are stipulated.
Abstract:
A run flat tire in which the maximum tire width position when the tire is in an inflated state, the inclination angle formed by the line S′ tangent to the tire outer wall in the tire shoulder region, the curving form of the tread surface, the relationship between the thickness Ga of the outer side rubber taken on a line X normal to the rim line and centered on the carcass layer 5 and the maximum thickness Gb of the outer side rubber in an upper region of the bead portion 2, the relationship of the thickness Gc of the inner side rubber taken on a line X normal to the rim line and centered on the carcass layer 5 and the thickness Ga of the outer side rubber are each stipulated.
Abstract:
Provided is a pneumatic tire having a tread surface in which two circumferential direction main grooves continuous in a tire circumferential direction are arranged on left and right sides of a tire center, and land portions are defined by the circumferential direction main grooves as ribs or blocks having lug grooves. Multiple fine grooves are provided in each of right and left walls of the circumferential direction main groove, the fine grooves being inclined to the tire circumferential direction and provided in regions along the circumferential direction main groove, covering at least 50% of the entire circumference thereof in total. In each of the two circumferential direction main grooves on corresponding tire shoulder sides, the fine grooves in the right and left walls are inclined to the tire circumferential direction in the same direction in a plan view in a tire radial direction. In each of the two circumferential direction main grooves on a tire center side, the fine grooves in the right wall and those in the left wall are inclined to the tire circumferential direction in directions opposite to each other in a plan view in the tire radial direction.
Abstract:
An N-heteroaryl-N'-phenylurea derivative represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are as defined in the description of the specification which is useful as a prophylactic and therapeutic agent for hypercholesterolemia, atherosclerosis and diseases caused by them.