Electronics and Telecommunications Research Institute

Sk Innovation Co., Ltd.

Sk Energy Co., Ltd.

Bonwook Koo

Taewan Kim

Daesung Kwon

Minsu Koo

Dongyoung Roh

Donghyun Kim

Jung Keun Lee

Woo-Hwan Kim

Taeseung Kim

Minji Sung

Younghwan Chu

An apparatus comprises: a hopper for feeding biomass; a horizontal extruder comprising a cylindrical housing and a rotatable screw mounted in the housing, in which one side of the housing is connected to the hopper, and an outlet provided at the other side of the housing is connected to an inlet for feeding biomass into a refiner; and a refiner comprising a stator disc having a cooling water space formed on the outer peripheral surface thereof, one or more enzyme feeding holes provided in a refining region adjacent to the circumference of the stator disc, and a biomass inlet provided at the central portion thereof, and a refining disc which is disposed so as to form a gap with the inner surface of the stator disc and to have a refining region opposite to that of the stator disc and is rotated by a separate motor.

Apparatus and method for simultaneous operation of refining cellulosic biomass and mixing enzymes

An apparatus and method for providing a Feistel-based variable length block cipher, which are configured to, when plaintext having a certain bit length is encrypted, generate ciphertext having the same bit length as plaintext, and to decrypt ciphertext into plaintext having the same bit length. The apparatus includes an encryption/decryption key generation unit for generating a number of encryption/decryption keys corresponding to a preset number of rounds, based on a secret key, the length of the secret key, the length of plaintext, and a round constant; an encryption/decryption tweak generation unit for generating an encryption/decryption tweak based on a tweak, a length of tweak, and the length of plaintext; and a ciphertext output unit for outputting ciphertext having length identical to that of plaintext, based on plaintext, the length of the plaintext, the length of the secret key, the encryption/decryption keys, and the encryption/decryption tweak.

Apparatus and method for providing Feistel-based variable length block cipher

A reactor for continuous saccharification of biomass having a high solid content comprises perforated plates and stirring means, in which the perforated plates includes nozzles for feeding additives, including a saccharification enzyme, and a sensor, which communicate with the holes of the perforated plates.

Reactor for continuous saccharification of high-solid biomass

An apparatus and method for converting a random binary sequence into a random integer is provided. The present invention converts a random binary sequence into a random integer, and determines whether the corresponding random integer falls within a preset integer interval. Further, if it is determined that the random integer generated from the random binary sequence does not fall within the preset integer interval, the present invention repeatedly updates a random binary sequence until a random integer falling within the corresponding integer interval is obtained, thus outputting uniformly distributed random integers which fall within the preset integer interval.

Apparatus and method for converting random binary sequence into random integer

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Daejeon, South Korea

Bonwook Koo