Abstract: Disclosed are a pearlescent pigment and a preparation method therefor, wherein the pigment has a multilayered structure including a low-refractive index material layer between high-refractive index material layers on a glass flake substrate and thus has high color intensity, various colors depending on the viewing angle, and an improved sparkling effect. The pearlescent pigment according to the present invention comprises: a glass flake substrate having a D10 value of 40-80 ?m, a D50 value of 160-250 ?m, and a D90 value of 350-600 ?m and a thickness of 500 nm or more; and a metal oxide layer coated on the substrate, the metal oxide layer having a structure of a first metal oxide layer/an intermediate oxide layer containing MgO·SiO2/a second metal oxide layer.

Abstract: Traffic control systems, devices, methods, and instructions for an electronic apparatus according to example embodiments may include identifying a traffic session based on QoS characteristics information of a transport layer, generating transmission state information of the traffic session by performing analysis on the traffic session, and generating path state information of the traffic session based on QoS requirements information of the traffic session and routing cost information of a network layer, determining whether the transmission state information and the path state information satisfy a QoS traffic policy, and performing traffic control according to a result of the determination.

Abstract: A current filter externally coupled to a cable includes a coupling portion coupled to a cable portion to surround the cable portion including at least one cable, the coupling portion including a flexible metal, and a ground portion detachably attached to the coupling portion and transmitting a current flowing through the coupling portion to a ground plane.

Abstract: A current filter externally coupled to a cable includes a coupling portion coupled to a cable portion to surround the cable portion including at least one cable, the coupling portion including a flexible metal, and a ground portion detachably attached to the coupling portion and transmitting a current flowing through the coupling portion to a ground plane.