Samsung Sds Co., Ltd.

Hyundai Heavy Industries Co., Ltd.

Daewoong Co., Ltd.

Korea Shipbuilding & Offshore Engineering Co., Ltd.

Sang Beom Shin

Keum Sik Im

Myung Hee Kim

Dong Ju Lee

Byung Kwan Yoo

Se Myeong On

Yong Seek Choi

Dae Soon Kim

Min Chul Shin

Dong Kyu Shin

Jong Jun Kim

Bo Gyu Kim

Hae Won Jeong

Se Hwan Jeong

Min Chui Shin

Hyun Soo Kim

Hyung Kook Jin

Dong Gi Lee

Hyung Woo Kim

Ha Geun Kim

In Wan Park

Joong Geun Youn

In Soo Chun

Byeong Jae Noh

Sung Pil Kang

Do Hyun Kim

Dae Young Kim

Wha Soo Kim

Myung Sub Lee

A method for authentication, a user terminal and an authentication server for executing the same are disclosed. An authentication server according to an embodiment disclosed includes a number receiver that receives a number of a user terminal from a callee who has received a call originated from the user terminal, a device authenticator that determines whether to generate an authentication key based on the number of the user terminal received from the callee and a caller number received from the user terminal, and generates the authentication key when it is determined to generate the authentication key, and an authentication key transmitter that transmits the authentication key to the user terminal.

Method for authentication, user terminal and authentication server for executing the same

An authentication server according to an embodiment disclosed includes a number receiver that receives a number of a user terminal from a callee who has received a call originated from the user terminal, an device authenticator that determines whether to generate an authentication key based on the number of the user terminal received from the callee and a caller number received from the user terminal, and generates the authentication key when it is determined to generate the authentication key, and an authentication key transmitter that transmits the authentication key to the user terminal.

The present invention includes: an independent tank constituting an inner tank to store a storage material therein; at least one sandwich plate modularized and manufactured include a metal plate provided in a pair opposite to each other, the metal plates having a reinforcing material formed therebetween, and a filler filled between the metal plates, the at least one sandwich plate surrounding the outer surface of the independent tank to constitute an outer tank; and an external reinforcing member formed on the outer surface of the sandwich plate.

Ground liquefied natural gas storage tank and method for manufacturing the same

A cargo tank for an extremely low temperature substance carrier according to the present invention arranges a first cargo tank wall having a primary corrugated panel to prevent cracks caused by contraction and easily absorb impact caused by liquefied gas sloshing to prevent defects occurring in the cargo tank, forms auxiliary corrugation on each of the first, second and third cargo tank walls to prevent defects caused by contraction and more easily absorb impact caused by liquefied gas sloshing, and selectively applies the first to third cargo tank walls having different structures to respective parts of the cargo tank where different sloshing phenomena occur to improve reliability of the cargo tank.

Cargo tank for extremely low temperature substance carrier

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Seoul, South Korea

Sang Beom Shin