포항 분지 제3기층 시추코아 유기물의 석유 지화학적 특성

이영주,곽영훈,윤혜수,정태진,오재호,김학주,강무희,Lee Youngjoo,Kwak Young Hoon,Yun Hye Su,Cheong Tae Jin,Oh Jae Ho,Kim Hagju,Kang Moohee 한국석유지질학회 1997 한국석유지질학회지 Vol.5 No.1

Core samples from the B, E, F, H wells in the Tertiary Pohang Basin were analysed for total organic carbon (TOC) content and subject to Rock-Eval pyrolysis in order to assess petroleum geochemical characteristics of organic matter. Following geochemical screening, we selected samples from each well for the study of bitumen and kerogens such as optical observation, infra-red spectroscopy and biomarker analyses. Sediments of the Tertiary Yonil Group contain total organic carbon ranging from $0.55{\%} to 3.74{\%}$ with S1+S2 values higher than 2mgHC/g Rock in B, E and F wells, which indicates fair hydrocarbon generation potential. Most organic matter in the B, E, F wells is compared to type II based on the Rock-Eval pyrolysis, infra-red spectroscopy and optical observation. However, organic matter in the H well is compared to type III because the well is located at the margin of the basin where the preservation of terrestrial material is dominant. Geochemical analyses show that organic matter in the Yonil Group is thermally immature although thermal maturity slightly increases with depth. Maturity levels of the extracted kerogens are similar to those of bulk samples ($Tmax<435^{\circ}C$. Petroleum geochemical charateristics of the sediments in the Tertairy Yonil Group is fair in terms of the organic richness and hydrocarbon genetic potential, but organic matter is thermally immature due to the shallow burial depth. Optical observation of the kerogens and biomarker analysis show that organic matter in the Yonil Group is both marine and terrestrial origin, although it was deposited in marine environment. Pristane/phytane ratio suggests rather anoxic depositional environment. Transitional characteristics of organic matter indicate that the marine Yonil Group was deposited near the terrestrial environments. Input of terrestrial organic matter is more prevalent in the samples recovered from the lowermost horizon in the wells due to the terrestrial environment at the time of basin formation.

대륙붕 한일공동광구에 분포하는 제 3기 시추 시료 유기물의 지화학적 특성

이영주,윤혜수,정태진,곽영훈,오재호,Lee Youngjoo,Yun Hyesu,Cheong Taejin,Kwak Younghoon,Oh Jaeho 한국석유지질학회 1998 한국석유지질학회지 Vol.6 No.1

Organic geochemical analyses were carried out in order to characterize organic matter (OM) in the sediments recovered from Korea/japan Joint Development Zone (JDZ V-1, V-3, VII-1 and VII-2) which is located in the northern end of the East China Sea Shelf Basin. Late Miocene sediments from the JDZ V-1 and V-3 wells generally contain less than $0.5\%$ of total organic carbon (TOC). However, early Miocene and Oligocene sediments show TOC values of $0.6-0.8\%$. Middle to late Miocene sediments are rich in TOC up to $20\%$ from JDZ VII-1 and JDZ VII-2 wells. The reason for this rich TOC might be attributed to the presence of coaly shales. Kerogens in the Tertiary sediments from the JDZ series wells are mainly composed of terrestrially derived woody organic matter. Elemental analyses indicate that OM from these wells can be compared to type III. Low hydrocarbon potential and hydrogen index reflect the type of OM. According to the biomarker analyses, the input of the terrestrial OM is prevalent. Oxidizing condition is also indicated by Pristane/Phytane ratio. Samples from the JDZ V-1 and V-3 wells obtain maturities equivalent to the oil generation zone around total depth, and organic matter below 3600 m from JDZ VII-1 and VII-2 wells reached dry gas generation stage. Oligocene sediments below 3500 m in the JDZ VII-1 and JDZ VII-2 wells may have generated limited amount of hydrocarbons, showing a progressive decrease in hydrogen index with depth, due to thermal degradation with increased burial. Gas shows and finely disseminated gilsonite may indicate the generation and migration of the hydrocarbons.

포항 지역 지하수에 분포하는 탄화수소 가스의 지화학

이영주,정태진,김진석,김학주,윤혜수,곽영훈,Lee Youngjoo,Cheong Taejin,Kim Jinseok,Kim Hagju,Yun Hyesu,Kwak Younghoon 한국석유지질학회 1998 한국석유지질학회지 Vol.6 No.1

Chemical components of water, chemical and isotopic compositions of extractable gases were analyzed to characterize the properties of the natural gases which are dissolved in ground water in the Pohang area. Amount of total extracted gases ranges from 27 ml/l to 50.1 ml/l. Hydrocarbon gases are composed of methane ($27{\~}376,420 ppm$) and ethane ($19{\~}127 ppm$). Amount of total hydrocarbon gases is related to the lithology and geological factors around the reservoir. Quantity of hydrocarbon gases tends to increase in the Tertiary reservoirs and in the reservoirs where the Tertiary formations are thick enough. According to the relationship between hydrocarbon gases and total solids in the ground water, it is believed that the hydrocarbon gases were dissolved in the Tertiary formation water. Based on the methane content ($>99.9\%$) and isotopic composition (${\delta}C^{13};-73.1\%_{\circ}{\~}-43.22\%_{\circ}$), we interpret the gases to be of predominantly biogenic origin which were generated by the methanogenic bacterial processes under the low temperature and anoxic conditions.

델파이기법을 이용한 감리점검항목 도출 방안 - 하이퍼레저 패브릭 기반으로

이영주,박수용,Lee, Youngjoo,Park, Sooyong 한국정보과학회 소프트웨어공학 소사이어티 2020 소프트웨어공학회지 Vol.29 No.2

국내 공공기관에서 사업비가 5억원 이상인정보시스템 구축사업은 정보시스템 감리대상이고 정보시스템 감리원은 감리기준에 따라 감리를 실시하여야 한다. 최근 금융산업을 넘어 제조, 헬스케어, 유통, 공공 부문 등 다양한 분야에 블록체인 기술이 적용되면서 블록체인 기술을 적용한 시스템 개발이 늘고 있다. 공공기관과 기업에서는 블록체인 기술을 적용하기 위해 프라이빗 블록체인인 하이퍼레저 패브릭을 사용이 증가 추세에 있다. 그러나, 새롭게 부상하고 있는 블록체인기반 시스템을 기존의 감리점검항목으로 감리를 수행하기에는 충분하지 않아 각 감리원들이 검증되지 않은 점검항목을 개별적으로 만들어 사용하고 있다. 따라서 블록체인을 적용한 시스템을 감리할때 검증된 감리점검 항목이 필요하다. 본 연구에서는 델파이 프로세스를 커스터마이징하여 블록체인 기술을 활용한 시스템 개발사업에 적합한 점검항목을 도출하고, 정보시스템 감리원의 설문조사를 통해 도출된 점검항목의 적정성을 검증받았다. 이번 연구는 정보시스템 감리원의 감리 수행에 직접적인 도움이 될 것이며, 블록체인 기반 시스템을 통해 서비스를 제공하는 사업자와 주관사도 시스템의 품질 향상에 기여할 것으로 기대된다. A project to establish an information system with a project cost of more than 500 million won at a local public firm is subject to the Information System Audit (hereinafter referred to as IS Audit), and the IS Auditor shall conduct audit according to the audit criteria. Recently, as blockchain technology has been applied to various fields such as manufacturing, healthcare, distribution, and public sectors beyond the financial industry, the development of systems that apply blockchain technology is increasing. The use of Hyperledger Fabric, a private blockchain, is on the rise to utilize blockchain technology in public firms and private firms. However, the newly emerging blockchain-based system is not sufficient to carry out auditing with existing audit check items, so it has no choice but to make and use audit items individually. Therefore, a need for verified audit items for systems that base on blockchain technology has emerged. In this study, we customized the Delphi process to derive audit items suitable for the system development project using the blockchain technology, and verified the completeness and accuracy of the audit items derived through a survey by the IS Auditor. This research will be of direct help to the IS Auditor, and it is expected that operators and organizers who provide services through the blockchain-based system will also contribute to improving the quality of the system.

스마트시티 내 분산형 용수공급기술 기반 스마트정수장 구축 연구

이영주(Youngjoo Lee),김성수(Seongsu Kim),서인석(Inseok Seo) 대한환경공학회 2021 대한환경공학회 학술발표논문집 Vol.2021 No.11

문화와 정치

이영주(Lee, Youngjoo) 한양대학교 평화연구소 2014 문화와 정치 Vol.1 No.1

정치인이 대중스타가 될 수는 있다. 대중스타로서의 정치인이 대중과 맺는 정서적인 유대감이나 친화감은 그 정치인에게 유용한 자산이 된다. 미디어화·스펙터클화된 현대사회의 정치에서 정치(인)는 대중적 정서구조와 예민하게 교통하면서 정서적 정치 공동체를 형성한다. 이에 따라 여와 야, 보수와 진보, 우파와 좌파 등 갈등과 적대적 관계 속에서 구성되는 정치는 포퓰리즘적 정서 정치의 후면으로 사라지거나 약화된다. 최근 한국의 개혁·진보정치 또한 소수의 스타 정치인을 중심으로 대중의 정서적 분노나 억울함, 정치적 좌절감 등을 보살피고 위로하는 부성 혹은 모성의 정치에 익숙해지는 상황이다. 정치인들은 자신의 정책과 정치적 이념, 대의성에 대한 담론보다는 대중들의 마음과 감정을 관리하는 일에서 정치를 이끌고자 한다. ‘안철수 현상’은 이를 상징하는 기호이다. 안철수 현상 속에서 여와 야, 보수와 진보, 우파와 좌파의 정치적 대립의 공간은 사라지고, 중도 포퓰리즘의 이데올로기적 공간이 확대된다. 이 논문은 한국 사회의 ‘힐링’ 문화가 정치의 영역과 어떻게 접합되고 있으며, 안철수 현상의 보수적 퇴행성이 무엇인지를 고찰함으로써 힐링화된 개혁·진보정치의 문제를 비판하고자 한다. A politician could be a popular star. An emotional sense of solidarity and friendship which a politician as a star have in relations with people become useful assets. The politics(or politicians) in a mediatized spectacle society forms a political emotional community in communicating keenly with a structure of feeling of people. In this, the politics constructed in relation of conflicts between the ruling party and the opposition party, the conservative and the progressive, the right and the left put behind the emotional populism politics or languished. Recently, the progressive politics in Korea has been charged with a kind of paternity/maternal politics by a few of star politicians which care for and console people’s emotional anger, depression and political frustration. Politicians lead politics by taking care of people’s emotion and feeling rather than seeking his/her policies, political ideas and representative actions. “AnCheolsu Syndrome” is a symbolic sign for this political tendency. Critical oppositions between the ruling party and the opposition party, the conservative and the progressive, the right and the left have faded away in one side, an ideological space for the centrist populism have been growing in the other side. This paper criticizes this political tendency of healing politics in the radical-progressive group and a conservative regression of the “AnCheolsu Syndrome”

공공 커뮤니케이션과 언론의 실패, 위험한 정부에 대한 시론

이영주(Lee, Youngjoo),류웅재(Ryoo, Woongjae) 한양대학교 평화연구소 2017 문화와 정치 Vol.4 No.1

최순실-박근혜 게이트는 정부를 포함한 공적 영역의 총체적 비정상성을 단적으로 드러내는 사건이다. 비선실세와 정부의 주요 인사들이 결탁해 국가를 사유화하고 이를 통해 자신들의 정치적 권력과 경제적 이득을 극대화해 왔다. 박근혜 비밀정부 요원들은 국정농단, 부정부패, 정경유착이라는 한국 사회의 기득권 계급의 전형적인 연결 구조를 드러냈다. 이 논문은 정부와 공적 기관들이 언론과 시민들을 대상으로 행하는 커뮤니케이션의 체계적 조작과 왜곡, 권력과 기득권 계급과 결탁하거나 이들에게 튼튼한 방어 요새를 제공하는 퇴행적 미디어를 다룬다. 또 공공 커뮤니케이션의 체계적 왜곡과 변질된 미디어의 결탁 속에서 정부가 얼마나 무능력하고 위험한 상태로 전락할 수 있는지 살펴보았다. 이 논문은 이명박, 박근혜 두 정부 기간 동안에 더욱 심화된 반 민주주의적 정부와 권력, 정치적 두목과 부하라는 전 근대적 정치 행태, 이와 연관된 공공커뮤니케이션과 퇴행적 미디어에 대한 비판적 관찰과 논의를 통해 언론학의 성찰적 관여와 현실 참여의 지점들을 제안하고 있다. The purpose of this essay is to critically examine a series of disastrous events and political failures in South Korea; including the recent political scandal called, Park Geun-hye and Choi Soon-sil Gate and the impeachment of the president Park Geun-hye in March 2017, Sewol ferry accident in April 2014, the wake of the MERS in June 2015, and also the Sinking of Cheonan Navy Ship in March 2010, the Four-river restoration project under the Lee Myung-bak government respectively. These events clearly exemplified incapabilities and corruption of the governments, as well as the structured anomalies of public communication in South Korea. Thus, this essay raises critical questions and explores the possibilities of alternative policy measures concerning the crisis of politics and public communication. We suggest a feasible starting point for galvanizing sustainable public dialogue in conjunction with the role of journalism and communication studies in this process in a self-reflexive way.

넥스트노멀 시대 중견기업 글로벌화 전략 및 정책과제

이영주(Lee Youngjoo),김정호(Kim Jungho),박용훈(Park Younghun) 산업연구원 2022 연구보고서 Vol.- No.-

Globalization is an essential strategy for mid-sized firm growth. Key customers of mid-sized firms growing on a global B2B network are located in the global marketplace. The innovation resources needed to grow mid-sized firms are also more scattered abroad than at home. Therefore, effective access to global customers and global innovation resources through a globalization strategies is an important factor in determining their global competitiveness. The more globally competitive mid-sized enterprises has, the healthier the corporate ecosystem can be. This can help the current achieve government’s policy goal of being a nation with super-gap industrial competitiveness. However, it is not easy for mid-sized enterprise to successfully achieve globalization. This is because the changes in the globalization environment that Next Normal has been creating over the past decade are not easy for mid-sized companies to handle. Next Normal has a strong tendency to threaten and challenge, but there are also many factors of opportunity. Korea should strengthen its policy support system and establish a corporate ecosystem where globalization can proceed smoothly to minimize the threats and challenges of Next Normal and maximize opportunities. Accordingly, We conducted a policy study to find a globalization strategy for mid-sized companies that can respond to the next normal era and to establish a policy system that can ensure the efficient operation of the strategy. As a result of the study, many strategically and policy meaningful results were derived from the research model consisting of a globalization strategies for mid-sized companies that can respond to the Next Normal era. We hope that the results of this study will contribute to the establishment of a strategy for globalizing mid-sized enterprises and the establishment of a new global policy system for them to achive global scaling up and Korean government to realize sustainable growth in the era of transition.

개인투자자의 상장리츠를 활용한 분산투자 전략에 대한 연구

이영주(YoungJoo Lee),안성필(Seoungpil Ahn) 한국FP학회 2021 Financial Planning Review Vol.14 No.1

본 연구는 개인투자자가 상장리츠를 활용하여 투자위험을 감소시킬 수 있는 방안을 실증분석하였다. 주식시장의 변동성이 확대되었던 2020년도를 분석기간으로 선정하여 GARCH-M모형으로 상장리츠와 개인투자자의 포트폴리오 간의 베타값을 추정하였다. 추정된 베타값은 시장상황에 따라 변동하며 개별 상장리츠의 특성에 따라서도 차이가 있다는 것을 확인하였다. 또한 개인투자자가 분산 정도가 낮은 포트폴리오를 구축한 경우에도 베타값이 가장 낮은 상장리츠를 선택적으로 편입하여 분산투자의 효과를 기대할 수 있음을 발견하였다. 다음으로 상장리츠의 최적편입비중에 대한 분석을 통하여 개인투자자는 수익성이 우수하고 베타값이 낮은 상장리츠를 선택하여 자신의 포트폴리오에 최소한의 비중으로 편입하더라도 시장지수를 보유한 것과 동등한 수준의 분산투자 효과와 시장지수를 상회하는 수익률을 동시에 달성할 수 있음을 실증하였다. 이와 같은 결과는 개인투자자가 잘 선택된 상장리츠를 자신의 포트폴리오에 편입하여 수익률의 희생 없이도 분산투자의 효과를 기대할 수 있음을 시사한다. 본 연구는 상장리츠와 주가지수간의 상관관계를 분석한 선행연구들과 차별화하여 개인투자자 입장에서 상장리츠의 분산투자 효과를 분석하고 개인투자자가 상장리츠를 활용하여 투자위험을 감소시킬 수 있는 구체적인 실현방안을 제시한 데 그 의의가 있다. This study examined the diversification effect of listed REITs for retail investors. During 2020, when the stock market has shown extreme volatility, the GARCH-M model was exploited, and the beta coefficients of the listed REITs on retail investors’ portfolios were estimated. The estimated beta coefficients were time-variant and conditional on the characteristics of the listed REITs. Retail investors with less diversified portfolios can achieve a diversification effect by carefully selecting the superior listed REIT with the lowest beta. In an analysis of the optimal portfolio weight for the selected listed REIT, retail investors can achieve the maximum diversification effect, which is equivalent to that of the market portfolio, by including only the minimal amount of the listed REIT to the existing portfolio. These findings suggest that the diversification effect of the listed REIT is subject to the correlation structure and the characteristics of the listed REITs. Unlike previous studies that examined the correlation structure between the listed REITs and the broad market index, this study examined the diversification effect of REITs for retail investors and provided practical insights to reduce their portfolio risk through the use of listed REITs.

‘대신’의 두 의미와 대조의 두 개념

이영주(Youngjoo Lee) 한국중원언어학회 2017 언어학연구 Vol.0 No.45

This paper explicates the semantics of the special connective taysin in Korean, whose meaning varies from replacement to contrast and compensation (Jeong, 2014). Building upon the proposal of Lee (2016), which classified the various meanings of taysin into two kinds (choosing vs. rejecting), this paper provides two lexical entries of taysin, which are distinguished by the types of arguments and the different polarities of the resulting propositions. The rejecting taysin is a function that takes two individuals and a predicate and asserts that the predicate is true for one individual but not for the other, whereas the choosing taysin is a function that takes two propositions which form a balance between positivity and negativity and asserts that both are true. This paper suggests that the two meanings correspond to two kinds of contrast. The rejecting taysin conveys a strong contrast, and the resulting two propositions cannot both be true, whereas the choosing taysin expresses a weak contrast, and the two propositions can both be true although they are in a contrastive discourse relation.