Abstract: Disclosed is an apparatus and method for controlling an operation of a secondary battery using a relative deterioration degree of an electrode. The method includes determining a SOC of the secondary battery whenever a pulse current flows through the secondary battery; determining an electrochemical reaction resistance from a voltage change amount measured during a preset initial time in each pulse current section and determining a lithium ion diffusion resistance from a voltage change amount measured during a remaining time except for the initial time; determining a deterioration-biased electrode by comparing a deterioration diagnosing resistance ratio, which is a relative ratio of the lithium ion diffusion resistance to the electrochemical reaction resistance, with a preset reference deterioration diagnosing resistance ratio; and adaptively adjusting an operation condition of a next charging/discharging cycle according to the type of the deterioration-biased electrode.

Abstract: A member for a metal oxide nanofiber based gas sensor can include a metal nanoparticle catalyst and can be formed to be functionalized by binding the metal nanoparticle catalyst and an alkali or alkaline earth metal through electrospinning and heat treatment processes. The member can detect a trace amount of a gas with high selectivity and ultra-high sensitivity by uniformly binding the alkali or alkaline earth metal and the metal nanoparticle catalyst through electrospinning and high-temperature heat treatment.

Abstract: A light emitting diode (LED) assembly includes an LED light source having a first light output with a characteristic spectrum and at least one phosphor through which the first light output passes. The phosphor includes the quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.

Abstract: A member for a metal oxide nanofiber based gas sensor can include a metal nanoparticle catalyst and can be formed to be functionalized by binding the metal nanoparticle catalyst and an alkali or alkaline earth metal through electrospinning and heat treatment processes. The member can detect a trace amount of a gas with high selectivity and ultra-high sensitivity by uniformly binding the alkali or alkaline earth metal and the metal nanoparticle catalyst through electrospinning and high-temperature heat treatment.

Abstract: A light emitting diode (LED) assembly includes an LED light source having a first light output with a characteristic spectrum and at least one phosphor through which the first light output passes. The phosphor includes the quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.

Abstract: A phosphor of a chemically stable inorganic luminescent material having a NASICON structure and an application product including the phosphor, such as a light-emitting device. A phosphor having the formula of A1+xBxC2?xD3X12:AEy where A is one or two types of elements of monovalent metal cations, B is one or two types of elements of trivalent cations, C is one or two types of elements of tetravalent cations, D is one or two types of elements of pentavalent cations, X is one or two types of elements of N, O, F, P, S, O, Cl, and Br, AE is one or two types of elements of Mn, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Th, U, and Bi, 0?x?2, and 0?y?0.1.

Abstract: An image board for a rotary wheel which is mounted on a rotary wheel of a vehicle and displays a stationary image regardless of the rotation of the rotary wheel, the image board including: a base plate which is uprightly arranged on the outer portion or the inside of a wheel frame provided on the rotary wheel and mounted to be independently rotatable with respect to the wheel frame, and on one side or both sides of which a predetermined image is arranged, the base plate including a chamber on which a space is formed to be extended along the circumferential direction with respect to a rotational axis; a main weight which is fixedly mounted on the bottom of the base plate and applies a load to the bottom of the base plate; and a compensation weight which moves within the space as the main weight rotates in any direction and applies a load to the main weight so that the main weight returns to the original position thereof, the compensation weight being arranged within the space.

Abstract: A phosphor of a chemically stable inorganic luminescent material having a NASICON structure and an application product including the phosphor, such as a light-emitting device. A phosphor having the formula of A1+xBxC2?xD3X12:AEy where A is one or two types of elements of monovalent metal cations, B is one or two types of elements of trivalent cations, C is one or two types of elements of tetravalent cations, D is one or two types of elements of pentavalent cations, X is one or two types of elements of N, O, F, P, S, O, Cl, and Br, AE is one or two types of elements of Mn, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Th, U, and Bi, 0?x?2, and 0?y?0.1.

Abstract: An image board for a rotary wheel which is mounted on a rotary wheel of a vehicle and displays a stationary image regardless of the rotation of the rotary wheel, the image board including: a base plate which is uprightly arranged on the outer portion or the inside of a wheel frame provided on the rotary wheel and mounted to be independently rotatable with respect to the wheel frame, and on one side or both sides of which a predetermined image is arranged, the base plate including a chamber on which a space is formed to be extended along the circumferential direction with respect to a rotational axis; a main weight which is fixedly mounted on the bottom of the base plate and applies a load to the bottom of the base plate; and a compensation weight which moves within the space as the main weight rotates in any direction and applies a load to the main weight so that the main weight returns to the original position thereof, the compensation weight being arranged within the space.