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Ga-Heon Jin,Min Woong Lee,Kyung Hoan Im,Tae Soo Lee 한국버섯학회 2014 한국버섯학회지 Vol.12 No.1
This study was initiated to investigate antioxidant, anti-acetylcholinesterase, and xanthine oxidase inhibitory activities and properties of fruiting bodies, mycelia, and fermentation culture filtrates from Phellinus igniarius. The contents of total phenols and flavonoid of fruit bodies, mycelia, and culture filtrate were 15.35-1.36 mg/g, 10.35-7.85 mg/g, and 8.25-5.36 mg/g. The 1,1- diphenyl-1-picrylhydrazyl (DPPH) radical scavenging abilities of the extracts from the fruiting bodies, mycelia, and culture filtrates were 90.25-95.60%, 78.82-85.24%, and 76.32-82.50% at 50-400 μg/mL, respectively. The chelating ability of fruiting body extract on ferrous ions was higher than those of mycelia and culture filtrates tested. The anti-acetylcholinesterase inhibitory activity of the fruiting body extract at 400 μg/mg exhibited 91.10% on AChE, which is lower than that of positive control, galanthamine (94.82%). The xanthine oxidase inhibitory activities of the fruiting bodies, mycelia, and culture extract were 85.47%, 78.13%, and 72.49% at 400 μg/mL, respectively. Overall, the fruiting body extract has better anti-acetylcholinesterase, antioxidant and xanthine oxidase inhibitory activities than those from mycelia and culture filtrate.
Jin, Ga-Heon,Lee, Min Woong,Im, Kyung Hoan,Lee, Tae Soo The Korean Society of Mushroom Science 2014 한국버섯학회지 Vol.12 No.1
This study was initiated to investigate antioxidant, anti-acetylcholinesterase, and xanthine oxidase inhibitory activities and properties of fruiting bodies, mycelia, and fermentation culture filtrates from Phellinus igniarius. The contents of total phenols and flavonoid of fruit bodies, mycelia, and culture filtrate were 15.35-1.36 mg/g, 10.35-7.85 mg/g, and 8.25-5.36 mg/g. The 1,1-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging abilities of the extracts from the fruiting bodies, mycelia, and culture filtrates were 90.25-95.60%, 78.82-85.24%, and 76.32-82.50% at $50-400{\mu}g/mL$, respectively. The chelating ability of fruiting body extract on ferrous ions was higher than those of mycelia and culture filtrates tested. The anti-acetylcholinesterase inhibitory activity of the fruiting body extract at 400 ${mu}g/mg$ exhibited 91.10% on AChE, which is lower than that of positive control, galanthamine (94.82%). The xanthine oxidase inhibitory activities of the fruiting bodies, mycelia, and culture extract were 85.47%, 78.13%, and 72.49% at 400 ${\mu}g/mL$, respectively. Overall, the fruiting body extract has better anti-acetylcholinesterase, antioxidant and xanthine oxidase inhibitory activities than those from mycelia and culture filtrate.
제조업에서의 실시간 Business Intelligence 활용사례 연구
김가회 ( Ga Hoe Kim ),박인경 ( In Kyeong Park ),박진원 ( Jin Won Park ),백헌 ( Heon Baek ),최홍용 ( Hong Yong Choi ),김진화 ( Jin Hwa Kim ) (주)엘지씨엔에스(구 LGCNS 엔트루정보기술연구소) 2014 Entrue Journal of Information Technology Vol.13 No.3
데이터 기반의 기업 의사결정에 대한 의식이 변화하면서 점차 Business Intelligence(BI)가 ERP와 같은 기본 솔루션으로 인식되고 있다. 제조업에서는 BI와 핵심 정보시스템인 ERP, CRM, SCM등이 연계된 통합구축사례가 늘어나고 있으며 기업간 경쟁력 우위 요소로 BI 솔루션을 활용하고자 하는 움직임이 활발하다. 인메모리DB 기술의 발달로 대용량 데이터의 실시간에 가깝게 빠른 처리가 가능해 짐에 따라 다양한 소스를 통해 수집된 데이터를 실시간으로 분석하고, 웹 및 모바일을 통해 신속한 전달이 가능해져 비즈니스 효율성 증대로 이어질 전망이다. 본 연구에서는 제조업 분야에 실시간 BI를 도입 및 활용 사례 연구를 통하여, 실시간 BI구축시의 방법론 및 실시간 BI 주제 선정, 구축과정을 제시하였다. 또한, 실제 구축 후의 성과를 제시하고, 더 나아가 실시간으로 월말 결산시의 매출 및 손익을 예측해 보는 손익 예측모형을 Pilot으로 검증 함으로써, 기업에서 실시간 BI 도입으로 가능한 분석업무의 확대 방향성을 제시하였다. Since the change of the enterprise decision making based on the data has been growing, BI(Business Intelligence) has been recognized as the fundamental solution such as ERP. The business cases of implementing BI integrated with systems related to core information systems such as ERP, CRM and SCM have been increased among manufacturing companies. The active trend is to recognize BI solutions as the element of competitive advantage for companies. Due to the growth of in-memory database technology, it is possible to do faster processing of big data in near real-time and to analyze the collected data from various sources in real-time. It enables that the data can be efficiently accessable by the web and mobile devices. Therefore, it is expected that the level of business efficiency will be increased into higher level. This research conducts the case study to adopt a realtime BI in manufacturing industry. It describes the methodology, subject selection in real-time BI and its building process. This study also shows the result of building BI and proves a profit and loss predictive model in generating the expected revenues, profits, and losses during monthly accounting period in real-time basis with a pilot project.
Park, Jin-Hee,Williams, Darren R.,Lee, Ji-Hyung,Lee, So-Deok,Lee, Je-Heon,Ko, Hyojin,Lee, Ga-Eun,Kim, Sujin,Lee, Jeong-Min,Abdelrahman, Aliaa,Mü,ller, Christa E.,Jung, Da-Woon,Kim, Yong-Chul American Chemical Society 2016 Journal of medicinal chemistry Vol.59 No.16
<P>The P2X7 receptor (P2X7R) has been reported as a key mediator in inflammatory processes and cancer invasion/metastasis. In this study, we report the discovery of novel P2X7R antagonists and their functional activities as potential antimetastatic agents. Modifications of the hydantoin core-skeleton and the side chain substituents of the P2X7R antagonist 7 were performed. The structure activity relationships (SAR) and optimization demonstrated the importance of the sulfonyl group at the R-1 position and the substituted position and overall size of R-2 for P2X7R antagonism. The optimized novel analogues displayed potent P2X7 receptor antagonism (IC50 = 0.11-112 nM) along with significant suppressive effects on IL-1 beta release (IC50 = 0.32-210 nM). Moreover, representative antagonists (12g, 13k, and 17d) with imidazole and uracil core skeletons significantly inhibited the invasion of MDA-MB-231 triple negative breast cancer cells and cancer cell migration in a zebrafish xenograft model, suggesting the potential therapeutic application of these novel P2X7 antagonists to block metastatic cancer.</P>
딥 러닝 시각 지능과 경로 탐색을 통한 사람형 로봇손의 목표 물체 파지 시스템
류가현(Ga Hyeon Ryu),오지헌(Ji-Heon Oh),정진균(Jin Gyun Jeong),정환석(Hwanseok Jung),이진혁(Jin Hyuk Lee),Patricio Rivera Lopez,김태성(Tae-Seong Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
다중 물체 환경에서 사람형 로봇손이 목표 물체를 파지하기 위해서는 목표 물체 인식, 충돌 없는 경로 설정, 사람형 로봇손의 물체 파지 지능이 필요하다. 본 논문에서는 딥 러닝 Mask R-CNN 을 통해 물체를 검출하고 3D 정보를 인식한 후, RRT-Connect 경로 탐색 알고리즘으로 충돌 회피 경로를 파악하고, 최종적으로 사람형 로봇손이 다중 물체 속에서 목표 물체를 파지하고 이동하는 하드웨어 시스템을 구현한다.
행동 복제 강화학습 및 딥러닝 사물 부분 검출 기술에 기반한 사람형 로봇손의 사물 조작
오지헌 ( Ji Heon Oh ),류가현 ( Ga Hyun Ryu ),박나현 ( Na Hyeon Park ),( Edwin Valarezo Añazco ),( Patricio Rivera Lopez ),원다슬 ( Da Seul Won ),정진균 ( Jin Gyun Jeong ),장윤정 ( Yun Jung Chang ),김태성 ( Tae-seong Kim ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.2
최근 사람형(Anthropomorphic)로봇손의 사물조작 지능을 개발하기 위하여 행동복제(Behavior Cloning) Deep Reinforcement Learning(DRL) 연구가 진행중이다. 자유도(Degree of Freedom, DOF)가 높은 사람형 로봇손의 학습 문제점을 개선하기 위하여, 행동 복제를 통한 Human Demonstration Augmented(DA)강화 학습을 통하여 사람처럼 사물을 조작하는 지능을 학습시킬 수 있다. 그러나 사물 조작에 있어, 의미 있는 파지를 위해서는 사물의 특정 부위를 인식하고 파지하는 방법이 필수적이다. 본 연구에서는 딥러닝 YOLO 기술을 적용하여 사물의 특정 부위를 인식하고, DA-DRL 을 적용하여, 사물의 특정 부분을 파지하는 딥러닝 학습 기술을 제안하고, 2 종 사물(망치 및 칼)의 손잡이 부분을 인식하고 파지하여 검증한다. 본 연구에서 제안하는 학습방법은 사람과 상호작용하거나 도구를 용도에 맞게 사용해야하는 분야에서 유용할 것이다.
국내산 대두(Glycine max. Merr)자원의 플라보노이드 대사체 동정 및 열처리 효과
신재형 ( Jae Hyeong Shin ),김헌웅 ( Heon Woong Kim ),이민기 ( Min Ki Lee ),장가희 ( Ga Hee Jang ),이성현 ( Sung Hyen Lee ),장환희 ( Hwan Hee Jang ),황유진 ( Yu Jin Hwang ),박금룡 ( Keum Yong Park ),송범헌 ( Beom Heon Song ),김정봉 한국환경농학회 2015 한국환경농학회지 Vol.34 No.2
BACKGROUND: Soy isoflavones, structurally similar to endogenous estrogens, may affect human body through both hormonally mediated and non-hormonally related mechanisms. Heat processing could change chemical compositions. The effects of different thermal processes, boiling and HTHP(high temperature and high pressure) on the composition of isoflavone compounds and total amount of domestic soybeans were investigated in this study. METHOD AND RESULTS: Three different kinds of soybean samples were collected from RDA-Genebank. The samples were extracted using methanol, distilled water, and formic acid based solvent. Also the same solvents were used for mobile phase in UPLC/ToF/MS. All of the isoflavone compounds were analyzed based on the aglycone type of external standard for quantification. The standard calibration curve presented linearity with the correlation coefficient R2 > 0.98, analysed from 1 to 50 ppm concentration. The total isoflavone contents does not change by treatment within the same breed. While “boiling” and “HTHP” processes tend to increase the contents of aglycone and β-glucosides, “fresh” soybeans retained the high concentration of malonylglucosides. CONCLUSION: These results have to be considered while developing an effective functional food, from the health while point of view using soybeans.