북미자유무역협정 국가들에 대한 구매력평가 실증분석

민대홍,제상영,윤종철 한국산업경제학회 2018 한국산업경제학회 정기학술발표대회 논문집 Vol.2018 No.5

생분해성 고분자 조성에 따른 스텐트 코팅용 필름의 약물 방출 특성 및 평활근세포 증식 억제 효율 분석

민대홍,박태현,이동기,나건 한국생체재료학회 2013 생체재료학회지 Vol.17 No.1

The drug-eluting stent coating film (PTX-Eluting PTFE film) was investigated by using poly(lactic-co-glycolic acid) (PLGA) and poly L-lactic acid (PLLA) via dip coating technique and characterized by thickness, drug eluting test, contact angle, proliferation of smooth muscle cell (SMC). The thickness of the films in ranged from 0.039 μm to 0.045 μm according to the composition of PLGA and PLLA. The sustained release behavior of paclitaxel (PTX) was observed for 65 days at PLGA:PLLA (3:7) film. The surface degradation behavior of the film exposed for 65 days in PBS buffer depends on the ration of PLLA. For monitoring of restenosis, the attachment and proliferation of SMC on the film was observed by fluorescence microscopy. The attachment and proliferation of SMC increase with increasing of PLLA content. It means that the hydrophilic property of the film surface leads to suppress the attachment and proliferation of SMC.

花崗岩土 開田地의 浸蝕-堆砂實態와 土砂收支에 對한 考察

閔大泓 公州大學校 資源科學硏究所 1994 資源科學硏究論文集 Vol.2 No.-

In this study, gully erosion and sedimentation on reclaimed land of decomposed granite soil were surveyed. The results were as follows. It was observed that sedimentation form of washed soil is different each other according to the layout and gradient of drainage channel or the structure and capaciety of sedimentation facilities. The efficient method to control soil which is washed out from the field is to construct the catch channel and use it as a sedimentation space. Constructing the horizontal channel crossing the field, the amount of gully erosion was decreased and washed soil was also decreased. It is effective method that the soil sedimentation facilities is constructed as a shape of rectangle, and sedimentation basin must be constructed in order that soil gravel is sedimented very well and washed water do not flow to the direction of spillway. The data of soil erosion and sedimentation in short time is necessary to solve the problem of reclaimed land in the granite soil zone.

SDx 산업 생태계 동향

민대홍,안지영,Min, D.H.,Ahn, J.Y. 한국전자통신연구원 2018 전자통신동향분석 Vol.33 No.2

Software defined technology (SDx), which defines the IT infrastructure based on software and controls that are not dependent on a specific hardware, and provides a rapid and flexible IT infrastructure, is increasing. SDx features centralized control, a common commercial product infrastructure, hardware-software dualization, and programmability. With the advent of the fourth industrial revolution, in which various application services are emerging based on IT infrastructure, interest in SDx is gradually increasing as the need for infrastructure flexibility and an agile business environment is increasing. This paper reviews the market trends of software defined anything using SDx and the trends of major vendors.

해외 주요국의 Private 5G 도입 동향

민대홍,신용희,안지영,Min, Dae Hong,Shin, Yong Hee,Ahn, Jee Young 한국전자통신연구원 2020 전자통신동향분석 Vol.35 No.5

Fifth-generation (5G) wireless communication supports low latency of up to 1 ms or less, 20 Gbps of data rate, and more than 1 million connections. With these technical advantages, machines and equipment can be precisely adjusted, allowing 5G to be applied to industrial applications. To expand the industrial application of 5G wireless communications, major countries have introduced dedicated 5G, allowing specific companies to build and use 5G directly. Germany, UK, and Japan allocate 100 MHz, 416 MHz, and 1,200 MHz, respectively, of bandwidth dedicated to 5G. Companies with local licenses from the government are expected to accelerate the application of 5G at a low cost and low-frequency range. Therefore, Korea should introduce private 5G to foster 5G-related industrial ecosystems and successfully implement the fourth industrial revolution.

家免 賢血流量의 自動調節에 關한 實驗的 硏究

閔大弘 大韓成形外科學會 1994 Archives of Plastic Surgery Vol.21 No.1

In order to observe the mechanism of autoregulation of blood flow in the isolated rabbit kidneys, 20 rabbits served as the normal control of which kidneys were perfused with blood obtained from donor rabbits. In 18 rabbits kidneys were decapsulated and perfused with blood, In 5 rabbits intact kidneys were perfused with a balanced perfusate. From the perfusion studies in earth group, phenomenon of autoregulation was observed were as follows. 1) The autoregulation was maintained for 30 min, from the onset of perfusion, thereafter deterioration rapidly. Data cited in this article were those obtained at 30 minutes. from onset of perfusion. 2) The weight of kidney after perfusion experienment increased about 3.2% in the group, 6.6% in the second group. But there were no increase in the third group. 3) The autoregulation of renal flow was observed in every group and autoregulation zone was ranged between 110 and 190 mmHg. 4) The mean renal flows at autoregulation zone were about 1.25ml/min/gm in the first and second group and about 6.0ml/min/gm in the third group. 5) Intra renal vascular resistance increased proportionately as perfusion pressure was increased within therange of autoregulation in every group but rather decreased at the out of range of autoregulation. From the above data, nechanism of autoregulation in the rabbit kidney was discussed.

SDN/NFV 공급 및 수요시장 동향

민대홍,안지영,Hong, M.D.,Young, A.J. 한국전자통신연구원 2016 전자통신동향분석 Vol.31 No.2

Software Defined Network(SDN)/Network Function Virtualization(NFV) 기술은 기존 하드웨어 기반의 경직된 네트워크의 구조를 소프트웨어, 가상화 기반의 유연한 네트워크 구조로 전환함으로써 미래의 다양한 융 복합 산업과 4차 산업혁명에 대응할 수 있는 네트워크 아키텍처 기술로 주목받고 있다. 현재 SDN/NFV기술이 네트워크 산업에서 주요 이슈가 되고, 이를 활용하여 성과가 소개되면서 네트워크장비 벤더들은 다양한 SDN/NFV 제품 및 솔루션을 출시하고 있다. 시장정체에 고심하던 통신사들도 SDN/NFV를 활용한 네트워크 인프라 전환을 모색하고 있다. 이에 본고는 주요 SDN/NFV 장비 벤더들의 동향과 SDN/NFV 도입사례를 살펴보고자 한다.

중국의 경제권역별 교통인프라 투자와 경제성장 간의 인과성 분석

민대홍 순천향대학교 공자아카데미 중국학연구소 2020 沽山中國學報 Vol.2 No.-

중국의 개혁·개방 정책은 중국의 급속한 성장과 경제적 격차의 심화와 같은 사 회적 문제를 동시에 발생시켰다. 최근, 중국 정부는 급속한 경제성장으로 인해 야 기된 문제들을 해결하고자 다양한 정책을 시행하고 있다. 본 연구는 균형성장의 일환으로 시행되고 있는 교통에 대한 투자와 경제성장 간의 인과성을 분석함으로 써 정책방향을 평가한다. 1차 적분된 패널자료인 교통에 대한 투자와 경제성장 간의 인과성을 분석하기 위해, 본 연구는 패널 단위근 검정, 패널 공적분 모형, 패널 벡터오차수정모형을 적용하였다. 그 결과, 모든 변수들은 적분된 패널자료 였으나, 중앙지역은 공적분 관계가 존재하지 않았다. 따라서 차분변수로 패널 벡터자기회귀 모형을 적용하였으며, 단기적으로 교통부문의 투자가 경제성장에 긍 정적인 영향을 주는 것으로 나타났다. 반면, 동부해안지역, 동북지역, 서부지역은 변수 간의 유의미한 장기적 인과관계가 확인되었다. 세 권역은 단기적으로 ‘1인당 실질 교통투자액이 1인당 실질 지역내총생산의 원인이다’라는 가설의 통계적 유 의성을 확보하였지만, ‘1인당 실질 지역내총생산이 1인당 실질 교통투자액의 원 인이다’라는 가설은 통계적 유의성을 확보하지 못했다. 장기적인 관점에서는 세 권역에서 모두 양방향적인 인과관계가 포착되었다. 이는 ‘1인당 실질 교통투자액 이 1인당 실질 지역내총생산의 원인임과 동시에 결과이다’라는 가설이 통계적으 로 유의미함을 의미한다. 그러나, 장기적인 관점에서 정부주도 하의 교통투자가 중앙지역의 경제성장에 효과를 주지 못하고 있음은 지속적인 경제성장을 위해 각 권역별 특성을 고려한 상향식 투자형태도 적극적으로 시행되어야 함을 의미한다. China's reform and opening-up has simultaneously generated rapid economic growth and economic disparity. Recently, the Chinese government has implemented various policies to solve problems caused by quantitative growth. This study has evaluated the direction of policy, which is being implemented as part of balanced growth, by applying the causality method between investment in transport and economic growth. To analyze the causality between the two integrated variables, this study applied panel cointegration, panel vector error correction model and panel vector autoregression model. As a result, in the central area, there is no long-run equilibrium and investment in transport affects economic growth positively, but significant causal relation was identified in eastern coastal, northeast and western area. This indicates that government-led public investment to solve economic disparity is having a positive effect through improved accessibility and redistribution of resources in some areas, but it has no effect in the other area. Thus, to get more efficient results, not only top-down investment policies, but bottom-up investment policies that take into account the characteristics of each areas should be actively considered.

함 석헌의 씨알, 권리를 찾는 생각의 주체

민대홍 한국인문사회과학회 2015 현상과 인식 Vol.39 No.1, 2

사회 비평가이자 사상가인 함 석헌은 한국의 해방공간과 6.25전쟁 이후 정치·사회적인 불안이 고조되고 삶이 피폐해진 원인을 나라의 주인이 ‘사람’이 아니라 ‘돈과 권력’이 되었기 때문이라고 본다. 정치인, 종교인, 경제인 할 것 없이 모두가 ‘패권’을 쥐기 위해 안간힘을 쓰는 동안, 많은 사람들이 사람답게 살 권리를 빼앗기거나 무시당했다는 것이다. 이런 상황 속에서 함 석헌은 ‘생각하는 주체’를 이야기한다. ‘생각하는 주체’란 인간답게 살 권리를찾고자 주체적이고 자발적으로 삶을 꾸려나가는 사람이다. 한편, 이 글은 한국 기독교가 여러 사회 문제 해결에 대해 관심을 접고 ‘내면화’된 종교 공동체가 된 배경을 연구한다. 지금의 교회는 ‘교회 안’과 개인구원으로 기독교적가치와 목표를 축소시키고, 개인적, 내부적 문제에만 집중함으로써 생각하는 주체로서의 기능을 상실하고 있다. 이 글은 이러한 교회가 개혁되어야 한다는 것을 논증한다. 기독교는 내면화된 사람들을 생각하는 주체로 깨우는 종교 공동체, 교회 밖 다양한사회적 문제들에 관심을 갖는 종교 공동체가 되어야 한다. 이에 대해 함 석헌의 ‘생각하는 주체’ 개념이 중요한 역할을 할 수 있다. A social critic and thinker, Ham Sok Hon finds the reason for the socio-political instability and unrests since liberation of 1945 in the fact that the sovereignty of the nation has been 'money and power', not the people. All political, business and even religious leaders, who were striving for their hegemony, ignored or deprived the people's (human) rights, with which they could live like a human. In this context, Ham proposes the concept of 'thinking subject'. The thinking subject is the one who looks for his/her rights to live as a human. This article examines the background that the Korean church came to ignore a variety of social issues the society faced to solve and became an internalized religious community. Now the church came to limit its role and function to individual salvation and 'in-church' affairs. The church, this article argues, should be reformed. Here, Ham's concept of the thinking subject could play an important role. The church ought to be a religious community, where the internalized members can be awakened to be the thinking subjects and its awakened members come to be concerned with various social issues outside the church.

문화적 폭력과 비폭력 저항 - 함석헌의 비폭력 저항운동의 평화적 함의

민대홍 숭실대학교 한국기독교문화연구원 2014 한국기독교문화연구 Vol.6 No.-