유선망에서의 RTP/UDP/IP 헤더 압축 설계

김민영,홍고르촐,신병철,이인성,Kim Min-Yeong,Khongorzul D.,Shinn Byung-Cheol,Lee Insung 한국정보통신학회 2005 한국정보통신학회논문지 Vol.9 No.8

RTP(Real-Time Transport Protocol)는 실시간 데이터인 오디오/비디오나 IP 텔레포니, 멀티미디어 서비스 등을 위한 인터넷 표준 프로토콜이다. 20 ms 프레임 단위로 코팅하는 8kbps(또는 1K bytes/sec) 음성 코덱의 경우 패킷당 데이터 크기는 20바이트가 되며 RTP/UDP/IP 계층을 거치면서 각 계층의 헤더가 추가되어 전체 헤더 크기는 최소한 40 바이트나 되어 많은 부담이 된다. 이를 해결하기 위하여 point-to-point 상에서 여러가지 압축방법이 제시되었으며, 이 방법에서는 IP계층까지 헤더 압축을 하기 때문에 end-to-end 방식에서는 사용을 할 수 없다. 본 논문은 현재 라우터 기반의 유선망에 헤더 압축 기술을 적용할 수 있도록 기존에 설계된 헤더 압축기법을 수정하여 성능을 분석하였다. Real Time Transport Protocol (RTP) is the Internet standard protocol for transport of real time data audio/video IP Telephony, Multimedia Seivece. In case of 8kbps voice codec, the size of packet per data is 20bytes and become more large to minimal 40bytes with adding each layer's header in RTP/UDP/IP. To solve this problem, various header compression skill were suggested on point-to-point networks. But it compress even IP header and cannot be suitable to apply to end-to-end network Thus, We will renew header compression protocol to apply wired router-based network.

태양광 산업 시장동향 및 전망

김민영,임동건,Kim, Min-Yeong,Im, Dong-Geon 한국전기전자재료학회 2015 전기전자재료 Vol.28 No.3

한방 치료와 자하거약침을 병행하여 치료한 극상근건염 및 삼각근하 점액낭염 환자 4례 증례보고

김민영,최영일,최희승,정윤규,추원정,이차로,남항우,Kim, Min-Yeong,Choi, Young-Il,Choi, Hee-Seung,Jung, Yoon-Gyoo,Choo, Won-Jung,Lee, Cha-Ro,Nam, Hang-Woo 대한한의정보학회 2011 大韓韓醫情報學會誌 Vol.17 No.2

Objectives : The purpose of this case series is to investigate and report the effectiveness of oriental medicine treatment and Hominis placenta pharmacopuncture treatment for supraspinatus tendinosis and subdeltoid bursitis. Methods : 4 patients are admitted at Dept. of Oriental Rehabilitation Medicine, Bu-Cheon Jaseng Oriental Medicine Hospital, diagnosed as supraspinatus tendinosis and subdeltoid bursitis and treated with oriental medicine treatment and Hominis placenta pharmacopuncture. Each case is measured and assessed daily by NRS(Numeric Rating Scale) score and shoulder physical exam. Results : After treatment, patients' shoulder pain are decreased and they showed nearly full ROM(range of movement). In patients with supraspinatus tendinosis and subdeltoid bursitis, oriental medicine treatment and Hominis placenta is good method for pain relief and better movement. Conclusions : As seen in these 4 cases of supraspinatus tendinosis and subdeltoid bursitis, oriental medicine treatment and Hominis placenta pharmacopuncture appears to be effective. 극상근건염 및 삼각근하 점액낭염으로 견관절의 통증과 이학적 검사 양성반응 및 ROM 제한을 호소하는 환자 4례에 대하여 한방 치료와 자하거약침 치료를 병행하였으며 그 결과 통증의 감소, 이학적 검사 소견의 개선 및 ROM 호전을 확인하였다.

한국 문학 아카이브의 현황과 전망: 근대문학정보센터와 국립한국문학관 설립을 중심으로

김민영,Kim, Min-yeong 한국기록관리학회 2019 한국기록관리학회지 Vol.19 No.4

본 논문은 한국 문학 아카이브의 미래를 탐색하기 위하여, 국립중앙도서관의 근대문학 아카이브를 소개하고 국립한국문학관의 아카이브 추진 방향에 대하여 논의하는 글이다. 국립중앙도서관의 근대문학 아카이브는 근대문학자료 원문 디지털화 및 전문적인 해제 정보 제공, 근대작가 및 근대문학사 관련 콘텐츠 구축 등을 중심으로 운영되고 있다. 2022년 개관을 목표로 하는 국립한국문학관의 문학자료 아카이브는 국립중앙도서관의 사례를 참고하되 보다 전문적인 큐레이션을 도입할 필요가 있다. 즉 아카이브된 자료를 바탕으로 문학의 창조적인 재생산이 가능하도록 기록의 맥락(context)을 기록하는 아키비스트의 태도를 가지고, 자료의 활용성을 확대할 수 있는 적극적인 아카이브 정책을 펼쳐야 할 것이다. To research the directionality of Korean literary archives, this paper introduces the modern literature archive of the National Library of Korea and discusses the future direction of the archive of the National Museum of Korean Literature. The modern literature archive of the National Library of Korea is operated with focus on digitizing the original text of modern literature, providing professional release information, and constructing contents related to modern writers and literary history. As such, the National Museum of Korean Literature, which aims to open in 2023, needs to refer to the case of the National Library of Korea but introduce more professional curating. In other words, the archivist should have the initiative to document the context of the records so that literature can be reproduced creatively based on the archived data. Moreover, he/she should actively implement archive policies to expand the availability of materials.

고압처리에 의한 발아팥의 기능성 향상 효과

김민영,장귀영,이윤정,김경미,강태수,이준수,정헌상,Kim, Min Young,Jang, Gwi Yeong,Lee, Yoonjeong,Kim, Kyung Mi,Kang, Tae Su,Lee, Junsoo,Jeong, Heon Sang 한국식품영양학회 2018 韓國食品營養學會誌 Vol.31 No.1

We investigated the influence of germination and high hydrostatic pressure (HHP) treatment conditions on the conversion of functional compounds and antioxidant activity in adzuki bean. The adzuki bean germinated at $25^{\circ}C$ for three- or six-days, and was later subjected to HHP at 0.1, 50, 100, or 150 MPa for 24 h. The highest polyphenol content (5.36 mg gallic acid equivalents (GAE)/g) and flavonoid content (0.91 mg catechin equivalents (CE)/g) were observed after germination for six days and HHP treatment at 100 MPa for 24 h, respectively. The total phenolic acid contents increased with increasing applied pressure from 88.86 to $208.26{\mu}g/g$ (100MPa, 24h). Phenolic acids are divided into two categories; those that exhibit increased content upon HHP treatment, and those that exhibit decreased content. The increasing phenolic acids were gallic acid, chlorogenic acid, (+)-catechin, ${\rho}-coumaric$ acid, ferulic acid, heperidin, salicylic acid, protocatechuic acid, cinnamic acid, naringenin. The total anthocyanin content decreased with increasing applied pressure from 22.42 mg/100 g to 6.28 mg/100 g (150 MPa, 24 h). The highest ABTS radical scavenging activity (8.02 mg eq AA/g) and DPPH radical scavenging activity (1.22 eq Trolox/g) were observed after germination for six days and HHP treatment at 100MPa for 24h, respectively. These results suggested that the combination of HHP and germination can lead to improved functionality in adzuki bean.

알칼리 수용액에서 산소환원반응에 대한 다공성 AuCu 덴드라이트 표면의 전기화학적 특성 평가

김민영(Min-Yeong Kim),이종원(Jong Won Lee),조수연(Soo Yeon Cho),박다정(Da Jung Park),정현민(Hyun Min Jung),이주열(Joo Yul Lee),이규환(Kyu Hwan Lee) 한국표면공학회 2021 한국표면공학회지 Vol.54 No.1

Porous dendrite structure AuCu alloy was formed using a hydrogen bubble template (HBT) technique by electroplating to improve the catalytic performance of gold, known as an excellent oxygen reduction reaction (ORR) catalyst in alkaline medium. The rich Au surface was maximized by selectively electrochemical etching Cu on the AuCu dendrite surface well formed in a leaf shape. The catalytic activity is mainly due to the synergistic effect of Au and Cu existing on the surface and inside of the particle. Au helps desorption of OH<SUP>-</SUP> and Cu contributes to the activation of O₂ molecule. Therefore, the porous AuCu dendrite alloy catalyst showed markedly improved catalytic activity compared to the monometallic system. The porous structure AuCu formed by the hydrogen bubble template was able to control the size of the pores according to the formation time and applied current. In addition, the Au-rich surface area increased by selectively removing Cu through electrochemical etching was measured using an electrochemical calculation method (ECSA). The results of this study suggest that the alloying of porous AuCu dendrites and selective Cu dissolution treatment induces an internal alloying effect and a large specific surface area to improve catalyst performance.

산수유 추출물에 의한 LNCaP 전립선 세포의 증식 억제 및 양성 전립선 비대증 유발 인자의 발현에 미치는 영향

김민영(Min Yeong Kim),지선영(Seon Yeong Ji),황보현(Hyun Hwangbo),이혜숙(Hyesook Lee),홍수현(Su Hyun Hong),최영현(Yung Hyun Choi) 한방비만학회 2021 한방비만학회지 Vol.21 No.1

Objectives: Benign prostatic hyperplasia (BPH) is a progressive pathological condition characterized by excessive proliferation of the prostate. In this study, we evaluated the effect of Corni Fructus water extract (CF) on the promotion of prostate cell proliferation by dihydrotestosterone (DHT). Methods: The effect of CF on the proliferation of LNCaP prostate cells was evaluated, and DHT was treated to induce an in vitro BPH model. To study the mechanism of inhibition of cell proliferation and BPH by CF, changes in the expression of key factors related to cell cycle and BPH were investigated. We further investigated the effect on the production of reactive oxygen species (ROS) and nitric oxide (NO) to evaluate the antioxidant and anti-inflammatory efficacy of CF. Results: Inhibition of LNCaP cell proliferation by CF was associated with decreased expression of cyclin D1 and cyclin A and increased expression of cyclin-dependent kinase inhibitor p21. CF also suppressed expression of BPH inducing factors such as 5α-reductase type 2 and androgen receptor (AR) as well as prostate specific antigen (PSA). Furthermore, CF significantly blocked DHT-induced LNCaP cell proliferation and effectively attenuated DHT-induced expression of BPH mediators and cyclins. In addition, CF inhibited DHT-induced oxidative and inflammatory reactions by inhibiting production of ROS and NO. Conclusion: Our results demonstrated that CF probably acted as 5α-reductase type 2 inhibitor, preventing the 5α-reductase type 2-AR signaling pathway, thereby reducing the conversion of testosterone to DHT and the expression of PSA, which is at least correlated with the antioxidant and anti-inflammatory activities of CF.

2015 대한토목학회 학생지회 현장견학 “토목공학과 학생들의 1박 2일 여행”

김민영(Min-yeong Kim) 대한토목학회 2015 대한토목학회지 Vol.63 No.9

Relationship between Reactive Oxygen Species and Adenosine Monophosphate-activated Protein Kinase Signaling in Apoptosis Induction of Human Breast Adenocarcinoma MDA-MB-231 Cells by Ethanol Extract of Citrus unshiu Peel

Min Yeong Kim(김민영),Hyun HwangBo(황보현),Seon Yeong Ji(지선영),Su-Hyun Hong(홍수현),Sung Hyun Choi(최성현),Sung Ok Kim(김성옥),Cheol Park(박철),Yung Hyun Choi(최영현) 한국생명과학회 2019 생명과학회지 Vol.29 No.4

한의학에서는 진피(陳皮)라고 칭하는 귤의 껍질(Citrus unshiu peel) 추출물은 항산화, 항염증 및 항균 특성을 포함한 다양한 약리학적 효능을 갖는 것으로 알려져 있다. 최근 그들의 항암 활성에 대한 가능성이 보고되었지만 정확한 기전 연구는 여전히 미비한 실정이다. 본 연구에서는 인간 유방암 MDA-MB-231 세포를 대상으로 진피에탄올(EECU, ethanol extract of C. unshiu peel) 추출물의 항암 효능을 평가하고 그에 따른 기전 연구를 수행하였다. 본 연구의 결과에 의하면 EECU에 의한 MDA-MB-231 세포의 증식억제는 세포사멸(apoptosis) 유도와 관련이 있었다. EECU에 의한 apoptosis는 caspase-8, -9 및 -3의 활성화와 IAPs 계열의 발현 감소에 따른 PARP의 분해와 Bax : Bcl-2 비율의 증가와 연관이 있었다. 또한 EECU는 Bid의 truncation과 함께 미토콘드리아 막 잠재력의 감소와 세포질로 cytochrome c의 이동을 촉진시켰다. 아울러 EECU는 AMPK 및 ACC의 인산화를 촉진시켰으나, AMPK 효소 활성의 저해제는 EECU에 의한 apoptosis 유도와 생존력 저하를 현저하게 억제하였다. 부가적으로 EECU는 AMPK 활성화의 상류 신호로 작용하는 활성산소종(ROS)의 생성을 촉진시켰으며, 강력한 항산화제인 NAC는 EECU에 의한 AMPK의 활성화와 apoptosis를 역전시켰다. 결론적으로 EECU는 ROS/AMPK 의존적인 내인성 및 외인성 apoptosis 경로를 활성화시킴으로써 MDA-MB-231 세포 증식을 억제하였음을 알 수 있었다. Citrus unshiu peel extracts possess a variety of beneficial effects, and studies on their anticancer activity have been reported. However, the exact mechanisms underlying this activity remain unclear. In the current study, the apoptotic effect of ethanol extract of C. unshiu peel (EECU) on human breast adenocarcinoma MDA-MB-231 cells and related mechanisms were investigated. The results showed that the survival rate of MDA-MB-231 cells treated with EECU was significantly inhibited in a concentration-dependent manner, which was associated with the induction of apoptosis. EECU-induced apoptosis was associated with the activation of caspase-8 and caspase-9, which initiate extrinsic and intrinsic apoptosis pathways, respectively, and caspase-3, a representative effect caspase. EECU suppressed the expression of the inhibitor of apoptosis family of proteins, leading to an increased Bax/Bcl-2 ratio and proteolytic degradation of poly (ADP-ribose) polymerase. EECU also enhanced the loss of the mitochondrial membrane potential and cytochrome c release from the mitochondria to the cytosol, along with truncation of Bid. In addition, EECU activated AMP-activated protein kinase (AMPK), and compound C, an AMPK inhibitor, significantly weakened EECU-induced apoptosis and cell viability reduction. Furthermore, EECU promoted the generation of reactive oxygen species (ROS), which acted as upstream signals for AMPK activation as pretreatment of cells, with the antioxidant N-acetyl cysteine reversing both EECU-induced AMPK activation and apoptosis. Collectively, these findings suggest that EECU inhibits MDA-MB-231 adenocarcinoma cell proliferation by activating intrinsic and extrinsic apoptotic pathways, which was mediated through ROS/AMPK-dependent pathways.

우회도로 신설에 따른 지역의 경제적 파급효과

김민영(Kim, Min-Yeong),강경우,국우각(Guk, U-Gak) 대한교통학회 2003 대한교통학회 학술대회지 Vol.44 No.-

우회도로는 도시의 중심업무지역(Central Business District)의 주변을 돌아서 통행하도록 만들어 놓은 도로를 말한다. 우회도로의 건설로 도로 통행자는 통 행 시간 및 비용을 절약하고, 안전성도 향상된다. 예 를 들어, 우회도로를 이용할 경우 기존의 도심이 조용 해지고 소음이 줄어들고, 안전이 향상되어 쾌적해지 고, 혼잡을 완화시킬 수 있다. 또한 우회도로 이용자 도 속도가 향상되는 효과를 볼 수 있다. 그러나 이러 한 우회도로의 신설은 기존의 도심으로 지나다니던 교통량이 새로운 도로로 전환됨으로써 기존 도심을 지나며 이용하던 서비스 시설의 이용 감소로 인해 지 역경제에 부정적인 영향을 미칠 것으로 예상된다.