Abstract: A driving force control device for an electric vehicle in which a left wheel is driven by a left in-wheel motor and a right wheel is driven by a right in-wheel motor includes a driving force difference setting section. The driving force difference setting section is configured to set a driving force difference between a driving force outputted from the left in-wheel motor and a driving force outputted from the right in-wheel motor when a lateral acceleration is detected acting on the vehicle, the driving force difference being set to generate a restoring moment against the vehicle corresponding to the lateral acceleration.

Abstract: A driving force control device for an electric vehicle in which a left wheel is driven by a left in-wheel motor and a right wheel is driven by a right in-wheel motor includes a driving force difference setting section. The driving force difference setting section is configured to set a driving force difference between a driving force outputted from the left in-wheel motor and a driving force outputted from the right in-wheel motor when a lateral acceleration is detected acting on the vehicle, the driving force difference being set to generate a restoring moment against the vehicle corresponding to the lateral acceleration.

Abstract: The phosphor and the X-rays intensifing screen according to the present inventin emit light by the excitation of X-ray, and they are used for medical and industrial radiography. In addition to the conventional contents of rare earth tantalate and/or rare earth niobate, the phosphor according to the present invention contains a determined quantity of divalent metal. This divalent metal content can make the improvement of the afterglow characteristic and the light emission characteristic of the phosphor. The phosphor according to the present invention is represented by the general formula (I) MyLn.sub.1 -x-(2/3)yDO.sub.4 : xR.sup.3+ (I).

Abstract: This invention relates to rare earth tantalate and/or niobate phosphors which emit light under X-ray excitation, and an X-ray intensifing screen which utilizes these phosphors. The phosphor is represented by the general formula (I);.sup.Ln 1-x-(2/3)y-(1/3)z.sup.M" y.sup.M' z.sup.DO 4:xR.sup.3+(I)In this formula, M" is at least one kind of divalent metal selected from the group consisting of Be, Mg, Ca, Sr, Zn and Cd, M' is at least one kind of alkali metal selected from the group consisting of Li, Na, Ba and K, Ln is at least one kind of element selected from the group consisting of Y, Gd, La and Lu, D consists of Ta and/or Nb, and R is at least one selected from the group conssiting of Tm, Pr, Sm, Eu, Tb, Dy and Yb, y is a value in the range 1.times.10.sup.-5 .ltoreq.y.ltoreq.1, z is a value in range 1.times.10.sup.-4 .ltoreq.z.ltoreq.0.1, and x is a numerical value in the range 0.ltoreq..times..ltoreq.0.05.

Abstract: The phosphor and the X-ray intensifying screen according to the present invention emit light by the excitation of X-rays and they are used for medical and industrial radiography. In addition to the conventional contents of rare earth tantalate and/or rare earth niobate, the phosphor according to the present invention contains a determined quantity of divalent metal. This divalent metal content can make the improvement of the afterglow characteristic and the light emission characteristic of the phosphor.The phosphor according to the present invention is represented by the general formula (I)MyLn.sub.1 -X-.sub.(2/3) yDO.sub.4 : xR.sup.3+ (I).

Abstract: An ultraviolet fluorescent lamp for accelerated artificial test on polymer is disclosed, which comprises a bulb consisting of an ultraviolet-ray-transmitting glass with the absorbance thereof having a wavelength of 280 nm being 1 to 3 with respect to ultraviolet rays, the inner surface of the bulb being provided with a phosphor having a characteristic that causes radiant energy transmitted through the bulb to increase by 5 to 17 times for every wavelength increase of 5 nm in a wavelength range of 295 to 310 nm, and that it has a radiant energy peak in a wavelength of 305 to 325 nm.

Abstract: A green light-emitting fluorescent material prepared from terbium-activated lanthanum cerium orthophosphate expressed by the structural formula:La.sub.x Tb.sub.y Ce.sub.z PO.sub.4where:x+y+z=10.05<x<0.350.05<y<0.30.6<z<0.9and a fluorescent lamp comprising said green light-emitting fluorescent material used alone or in combination with any other form of fluorescent material.