Lg Chem, Ltd

Electronics and Telecommunications Research Institute

Lg Nanoh2o, Inc.

Sung Yeol Choi

Duk Hun Jang

Hyung Sam Choi

Sang Gon Kim

Byung Guk Kim

Young Sik Eom

Junhyeong Kim

Il Gyu Kim

Hoon Ki Lee

Hee Sang Chung

Alberto Goenaga

Bing Hui

Hyungsam Choi

Yunah Yu

Christopher James Kurth

Jin Sook Ryu

Brett Anderson Holmberg

Jin Kuk Lee

Jeff Koehler

Robert Leon Burk

Youngsik Eom

Sun Ok Oh

Andrew Ford

Amit Sankhe

The polyamide-imide copolymer according to the present disclosure makes it possible to provide a polyamide-imide film that is excellent in both thermal stability and mechanical properties, and is capable of realizing anisotropy.

Polyamide-imide copolymer and polyamide-imide film comprising the same

The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.

Polyimide-based block copolymer and polyimide-based film comprising the same

The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having a large molecular weight and exhibiting colorless and transparent properties.

Polyimide-based block copolymers and polyimide-based film comprising the same

The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while having a high molecular weight, and being colorless and transparent.

The present disclosure relates to a polyimide-based block copolymer film. The polyimide-based block copolymer film according to the present disclosure exhibits excellent an ultraviolet shielding property to be suitably used for substrates for displays, protective films for displays, touch panels, and the like.

Polyimide-based block copolymer film

The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while being colorless and transparent. The polyimide-based film may be used as a cover film of various flexible or foldable devices.

A transmitting apparatus for modulating data based on a predetermined 2-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2-QAM constellation are same with a gray code of a 2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2-QAM around the x-axis or the y-axis.

Apparatus and method for transmitting and receiving signal based on QAM constellation

Disclosed herein is an adaptive communication method of a base station in a moving wireless backhaul network, including: acquiring frame transmitting/receiving timings of a terminal; periodically searching for a terminal synchronous signal transmitted from the terminal; if the terminal synchronous signal is detected, estimating the frame transmitting/receiving timings of the base station to/from the terminal based on the terminal synchronous signal and the frame transmitting/receiving timings of the terminal; and transmitting the base station synchronous signal to the terminal based on the frame transmitting/receiving timings of the base station.

Method of receiving downlink signal of high speed moving terminal, adaptive communication method and adaptive communication apparatus in mobile wireless backhaul network

Provided is an interfacial polymerization process for preparation of a highly permeable thin film composite membrane, which can be used for nanofiltration, forward osmosis, or reverse osmosis, particularly for use with brackish water or seawater. The process includes contacting a porous support membrane with an aqueous phase containing a polyamine to form a coated support membrane, and applying an organic phase containing a polyfunctional acid halide to the coated support membrane to interfacially polymerize the polyamine and the polyfunctional acid halide to form a discrimination layer of a thin film composite membrane, where the aqueous and/or organic phases include a flux-enhancing additive and a boron rejection-enhancing additive that includes a biguanide compound, dicarbonate compound, pentathiodicarbonate compound, or salts thereof. Also provided are the membranes prepared by the methods and reverse osmosis modules containing the membranes.

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Daejeon, South Korea

Sung Yeol Choi