Lg Chem, Ltd

Sungkyunkwan University

Korea Electronics Technology Institute

Lg Electronics Inc.

Hyundai Mobis Co., Ltd.

Korea Advanced Institute of Science and Technology

Korea Institute of Science and Technology

Seoul National University

University-Industry Cooperation Group of Kyung Hee University

Snu Rdb Foundation

Hanwha Corporation

Industry Academic Cooperation Foundation Hallym University

Genesen Co., Ltd.

Sunjin Chemical Co., Ltd

Amos Pharm Co., Ltd.

Sung Ho Lee

Joon Ho Shin

Sang Beom Lee

Sang Ho Lee

Jong Kuk Choi

Nam Jib Park

Soo Min Lee

Ryul Lee

Sung Hwan Lim

Su Kyoung Lee

In Yong Jeong

Sung Kyu Lee

Jae Young Choi

Min Suk Kang

Min Ji Kim

Jang Ho Park

Sung Tae Ahn

Minsuk Kang

Myeung Il Kim

Won Sik Eum

Sangeun Kim

Dae Won Kim

Su Dong Chae

Se Yeong Ju

Min Soo Kim

Yong Chan Kim

Jae Jun Lee

Jong Ku Lee

Joong Jin Han

Jin Soo Park

Min Jung Kim

Chul Han Park

Eung Soo Kim

Young Kwan Kim

Yong Kim

Tae-Wook Kim

Min Goo Lee

Eunju Park

Yong Gi Chun

Sang Wook Nam

Hyeon Don Kim

Deok Jin Kim

Young Ki Hong

Jae Hwan Kim

Jeong Seok Kim

Myong Jo Ham

Han-Ik Joh

Jang Ho Shim

Ki Won Hwang

Deog Kyoon Jeong

Sa Eun Park

Sun Kook Kim

Sun Mo Son

Jae Joon Chang

Jae Hyuk Kim

Hyun Jun Nam

Dae Chul Jung

Won Geun Song

Soo Young Choi

Jinseu Park

Jeongbin Lee

YoungSeok Kim

Tae Moon Park

Hyuk Sang Jung

Si Nae Lee

Yang Bae Yoon

Moon Kyoon Chun

Keunwook Lee

Kyuhyung Han

Jin-Seu Park

Soo-Young Choi

Jong Kook Park

Sunghou Lee

Yeon Joo Choi

Hyun Ju Cha

Eun Jeong Sohn

Hyun Jung Kwon

Soojung Park

Eun Ji Yeo

Min Jea Shin

Hyeon Ji Yeo

Dae Yong Ok

Jong Wan Kim

Min Hee Kim

Brian Wilson

Seung Hee Han

Ha Ram Ju

Yong Hoon Song

Myeongjin Ha

Hyun Jik Yi

Tae Sic Kim

Eun Ii Cho

Yong Hee Jang

Sang Uk Kim

Min Ho Jeong

Seok Jae Yoo

Jong Hyun Lee

Yong Chun

A method is provided for preparing a low temperature thermosetting polyarylene sulfide having significantly low crystallinity while maintaining a low melt flow rate at a high polymerization yield, so as to ensure excellent laser welding property and mechanical properties even when used in a molded product on the transmitting side of laser beam by a laser welding method.

Preparation method of polyarylene sulfide

A method of washing an ion exchange resin, including washing an ion exchange resin with deionized water (DI water) one or more times to prepare a washed ion exchange resin; and storing the washed ion exchange resin in dionized water. A method for producing bisphenol A using the method of washing an ion exchange resin. The resulting bisphenol A has improved purity, thermal stability, color, and the like.

Method for washing ion exchange resin and method for preparing bisphenol A

There is provided a clock and data recovery circuit for a high-speed PAM-4 receiver through statistical learning. A clock and data recovery device according to an embodiment includes: an input unit through which data is inputted; a clock input unit through which a clock is inputted; a sampling unit configured to sample the inputted data by using the inputted clock; a controller configured to combine results of sampling at a plurality of sampling points, to determine a state of the clock based on the combined results, and to generate a control value for controlling the clock; and an adjustment unit configured to adjust the clock applied to the sampling unit, based on the control value generated by the controller. Accordingly, a hardware structure is simplified and energy efficiency is enhanced compared to an exiting oversampling clock and data recovery circuit for a PAM-4 receiver.

PAM-4 Baud-rate clock and data recovery circuit using stochastic phase detection technique

A photodynamic therapy apparatus for local targeting in cancer treatment capable of treating various types of cancers or tumors. An endoscope is placed in the center of an end portion of a probe used in photodynamic therapy and a plurality of optical fibers are arranged along the edge thereof, so that a lesion site is irradiated with a plurality of lights while the plurality of optical fibers of the probe receive lights from individual light sources, respectively, to perform light irradiation individually. An apparatus is disclosed, wherein unnecessary damage to normal tissues is minimized by controlling light irradiation regions, for instance, by defining light irradiation regions encompassing a lesion site from an image provided in real time through an endoscope disposed at an end portion of a probe and allowing only individual light sources irradiating the defined light irradiation regions to emit lights to achieve local light irradiation.

Photodynamic therapy apparatus for local targeting in cancer treatment and control method therefor

A protein transduction domain and a fusion compound, which are more efficient, are proposed. As a result of selecting and testing a number of candidate peptides, the present inventors found that a GK1 peptide comprising 18 amino acids and a modified sequence obtained by replacing, adding, or deleting some sequences are bonded to high-molecular-weight materials such as proteins based on the basic sequence of the peptide, thus enabling the high-molecular-weight materials to smoothly penetrate into living bodies, for example, cells, tissues, or blood. A fusion compound, oligonucleotide, or vector using the same may be applied as a pharmaceutical composition for preventing or treating diseases.

Protein transduction domain, fusion compound containing the same, and pharmaceutical composition containing the fusion compound

A method of decomposing a phenol by-product produced in a phenol preparation process, in which acetophenone separated from a distillation column is mixed with tar separated and collected in a decomposition reactor, thereby significantly decreasing viscosity of tar. The decomposition method according to the present invention allows tar to have sufficient viscosity for flowability even at room temperature, whereby transfer and storage of tar may be more smoothly done without using any heating device for transfer of tar.

Method of decomposing by-product in phenol preparation process

Provided is a blasting system including a first detonator and a second detonator and a user terminal. The user terminal performs wireless communications with the first detonator and wired communications with the second detonator. Each of the first detonator and the second detonator includes an electric detonator storing detonator information, in which the electric detonator ignites an explosive in response to a blasting command, a connector connecting the electric detonator to the user terminal via a wireless or wired communication means, and a wiring portion connecting the electric detonator and the connector.

Blasting system including electric detonator

In a process of decomposing byproducts of a phenol production process using a reactive distillation column in which a reactor and a distillation column are integrated, since acetophenone is mixed with tar recovered to a lower part of the reactive distillation column and transferred, viscosity of the tar may be lowered so that the tar may be transferred at room temperature, and since the reactive distillation column may be operated at 0.5 to 3 bar, an operating temperature of the reactive distillation column is low as compared with a method of separating acetophenone by pressurization with high pressure, significantly reducing an operation cost of a heater required for a reaction. Also, since acetophenone is separately recovered at a position of 25 to 90% of a total number of stages in the reactive distillation column, recovery of an active ingredient may be enhanced.

Method for decomposing byproducts in phenol production process

The present invention provides a device for measuring biological information including a sensor array, wherein the sensor array includes a plurality of sensors that are either sensors for amplifying photoreactivity or sensors forming an island network connected by a plurality of multi-channels and, in the device, the average value of biological information about the skin tissues is measured based on values output from the sensor array, and a method of measuring biological information using the device.

Device for measuring biological information including sensor array and method of measuring biological information using device

A method of preparing hydrophobic porous silica includes reacting a porous silica particle containing a hydrophilic group in a solvent with an organosilane compound under a basic catalyst to form a mixture, drying the mixture comprising the porous silica particle in a vacuum, and condensation reacting the hydrophilic group of the porous silica particle with the organosilane compound on the surface of the porous silica particle to modify the surface of the porous silica particle to be hydrophobic.

Method of preparing hydrophobic porous silica and hydrophobic porous silica

A method of preparing hydrophobic porous silica includes adding an alcohol to a solvent in which a porous silica particle including a hydrophilic group is dispersed and stirring the same to form a mixture, drying the mixture including the porous silica particle in a vacuum, and condensation reacting the hydrophilic group of the porous silica particle with the alcohol on the surface of the porous silica particle to modify the surface of the porous silica particle to be hydrophobic.

Hydrophobic porous silica and method of preparing hydrophobic porous silica

The present invention relates to a method of preparing methyl tert-butyl ether including a reaction step of reacting methanol with iso-butene in the presence of an acid catalyst to generate methyl tert-butyl ether; and a purification step of purify the reaction product obtained by the reaction step by introducing the reaction product into a reaction distillation column including a packing stage containing an acid catalyst, wherein a flow ratio of a recycle to a fresh feed is different per the volume of each reactor. Accordingly, the amount of unreacted iso-butene and the amount of impurities included in the reactor may be reduced, resulting in reduction of the amount of thermal energy used in a reaction distillation column.

Method of preparing methyl tert-butyl ether

By using the distillation device of the present application, energy loss occurring in a purification process of a solution including a waste stripper and a stripped photoresist resin used in a stripping process of a photoresist can be minimized and the installation cost of the distillation device can be reduced compared to the case in which dual distillation columns are used, thereby increasing the economic feasibility of a process.

Distillation method

A system for producing phenol and bisphenol A comprising: a first production unit for producing phenol comprising a decomposition reaction unit and a purification unit; a second production unit for producing bisphenol A comprising a reaction unit and a concentration unit; and a removal unit for removing methanol and acetone during the production of phenol and bisphenol A. The removal unit includes a removal column comprising an overhead purge part, a bottom recirculation part and a supply part. The supply part comprises a purification unit discharge part to supply methanol, acetone, and water discharged from the purification unit to the removal column and a concentration unit discharge part to supply phenol, acetone, and water discharged from the concentration unit to the removal column, and is provided to the midsection of the removal column.

System for producing phenol and bisphenol A including removal unit for removing methanol and acetone

Growing community of inventors

Daejeon, South Korea

Sung Ho Lee