Abstract: This base station has: a control unit that determines, on the basis of information shown by the movement of a terminal, a linking method for signal transmission by a plurality of wireless stations, and the number of streams of each wireless station; and a transmission unit that links the plurality of wireless stations according to the determined linking method, and transmits a signal to a terminal using the streams.

Abstract: A surface-coated cutting tool with a hard coating layer exhibits excellent chipping resistance and wear resistance in a high-speed cutting process. The surface-coated cutting tool comprises a lower layer consisting of a titanium compound layer and an upper layer consisting of an aluminum oxide layer deposited on a surface of a tool substrate constituted of a tungsten carbide-based cemented carbide as a hard coating layer. In the upper layer, a (006) plane texture coefficient TC(006) is 1.8 or more, a ratio I(104)/I(110) of a peak intensity I(104) of an (104) plane to a peak intensity I(110) of an (110) plane is in a range of 0.5 to 2.0, and furthermore, an absolute value of a residual stress in the aluminum oxide layer is 100 MPa or less.

Abstract: A surface-coated cutting tool with a hard coating layer exhibits excellent chipping resistance and wear resistance in a high-speed cutting process. The surface-coated cutting tool comprises a lower layer consisting of a titanium compound layer and an upper layer consisting of an aluminum oxide layer deposited on a surface of a tool substrate constituted of a tungsten carbide-based cemented carbide as a hard coating layer. In the upper layer, a (006) plane texture coefficient TC(006) is 1.8 or more, a ratio I(104)/I(110) of a peak intensity I(104) of an (104) plane to a peak intensity I(110) of an (110) plane is in a range of 0.5 to 2.0, and furthermore, an absolute value of a residual stress in the aluminum oxide layer is 100 MPa or less.

Abstract: The present invention mainly relates to non-aqueous electrolyte secondary batteries. The present invention intends to provide a non-aqueous electrolyte secondary battery having excellent cycle characteristics and excellent storage characteristics. The non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The positive electrode active material includes secondary particles each being an aggregate of a plurality of primary particles, and the primary particles have an average particle diameter of 0.8 ?m or less. The secondary particles each contain aluminum atoms, and the content of the aluminum atoms is larger in a portion near the surface of each of the secondary particles than in a portion near the center of each of the secondary particles.

Abstract: A Ni-containing positive electrode active material for a nonaqueous electrolyte secondary battery is formed of secondary particles each constituted by aggregated primary particles. In cross sections of the secondary particles, a total cross-sectional area of part of the primary particles at least partially exposed at the surfaces of the secondary particles is at least 40% of a total cross-sectional area of the primary particles constituting the secondary particles.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery includes a particle of a composite oxide which contains Li and Co, wherein: the composite oxide further contains an element M1 and an element M2; the element M1 is at least one selected from the group consisting of Mg, Cu and Zn; the element M2 is at least one selected from the group consisting of Al, Ca, Ba, Sr, Y and Zr; the element M1 is uniformly distributed in the particle; and the element M2 is distributed in the surface portion of the particle more than in the inside thereof.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery includes a particle of a composite oxide which contains Li and Co, wherein: the composite oxide further contains an element M1 and an element M2; the element M1 is at least one selected from the group consisting of Mg, Cu and Zn; the element M2 is at least one selected from the group consisting of Al, Ca, Ba, Sr, Y and Zr; the element M1 is uniformly distributed in the particle; and the element M2 is distributed in the surface portion of the particle more than in the inside thereof.

Abstract: In a valve operating system designed to open and close intake valves of an internal combustion engine by an electromagnetic force, a first electromagnetic driving device for electromagnetically driving a first intake valve capable of opening and closing a first intake valve bore and a second electromagnetic driving device for electromagnetically driving a second intake valve capable of opening and closing a second intake valve bore are controlled by a control device in a manner so that when the engine is in a predetermined operational state, the first intake valve is opened and closed in a condition in which the second intake valve has been closed and stopped. Thus, it is possible to produce a swirl equivalent to that produced by changing of the lift amount, to provide a reduction in consumed electric power and to achieve a reliable engine operation, e.g., starting.

Abstract: A supporting structure for rocker arms for engine valves includes an engine having a cylinder head, a valve provided on the cylinder head and adapted for either of intake and exhaust purposes, a valve-operating mechanism for operating the valve, the valve-operating mechanism including a rocker arm abutting on the top of the valve, to thereby operate the valve, and a pivotal structure for pivotably supporting one end of the rocker arm. The pivotal structure comprises a ball-like portion, a spherical concave portion shaped in a form substantially correspondent to the ball-like portion and engaged with the ball-like portion, and an elastic member disposed at an aperture end of the spherical concave portion and adapted to hold the ball-like portion in the spherical concave portion.

Abstract: A cylinder head for DOHC type internal combustion engine with a center block integrally formed over each cylinder with portions for supporting the rocker arm bearings and a central hole for receiving the ignition plug. Two main oil supply passages are integrally formed in the head and extending longitudinally on either side of the plug holes for supplying lubricant to the rocker arm bearings and the camshaft bearings on each side.

Abstract: The curved surface of the semi-spherical recess is defined such that a center of the curvature of the semi-spherical recess in a longitudinal section including a center line of the semi-spherical recess deviates from the center line, and a radius of curvature of the recess is greater than a radius of curvature of the spherical fitting portion.