Electronics and Telecommunications Research Institute

Sk Innovation Co., Ltd.

Kt Corporation

Sk Global Chemical Co., Ltd.

Sk Geo Centric Co., Ltd.

Ilgu Jung

Byung Sun Lee

Ho Young Song

Jisu Jeong

Hyun Chul Kang

Chansaem Park

Inhyoup Song

Byung Yun Lee

Hyoseung Park

Woosung Jung

So Hee Sim

Eunjin Ko

Lim Ok Pyun

Jongho Choi

Junga Lee

Myungjin Kim

Byul Ha Na Min

Provided are a carbon dioxide absorbent including an ionic liquid including a choline-based cation and a phenolate-based anion, and an aliphatic alcohol, and a method of separating carbon dioxide using the same. Since the carbon dioxide absorbent of the present disclosure is thermally and chemically stable, it may decrease by-products released into the atmosphere and thus, is environmentally friendly. The method of separating carbon dioxide using the absorbent is an economical method which allows energy saving with low renewable energy.

Carbon dioxide absorbent including phenolate-based ionic liquid and aliphatic alcohol and method of separating carbon dioxide using the same

The present invention provides a fouling prevention method and a method for olefin oligomerization, wherein in the method for olefin oligomerization, a predetermined anti-fouling agent is added, thereby minimizing the production of sticking byproducts generated during the reaction and fundamentally preventing the fouling of the byproducts, generated during the reaction, on an inner wall of a reactor.

Fouling prevention method and method for olefin oligomerization

Provided are a system and a method for measurement voice over Internet protocol (VoIP) quality of experience (QoE), and a compensation method, a method for measuring QoE for a VoIP telephone service in real time, and claiming after-treatment on the basis of the measurement quality. The present invention measures subjective or objective quality for an actually generated call, and allows the subjective or objective quality to be linked with after-treatment such as compensation.

System and method for measurement of VoIP QoE and compensation method

A communication server in cooperation with a telematics center receives a result message for condition guidance service selection result information from the telematics center to control a driver terminal according to traveling condition recognition of a vehicle, stores a driver terminal number, call control request information during traveling, and condition notice information during traveling included in the result message, sets a condition guidance service, and controls call connection with a call connection attempting terminal for attempting a call connection to the driver terminal according to a type of the result message.

Method and device for controlling terminal based on recognition of vehicle driving condition

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Daejeon, South Korea

Ilgu Jung