배치형과 연속흐름형에 의한 토양 중 RDX의 아임계 분해특성 비교연구

최재헌,이환,이철효,김주엽,박정훈,조영태,Choi, Jae-Heon,Lee, Hwan,Lee, Cheol-Hyo,Kim, Ju-Yup,Park, Jeong-Hun,Jo, Young-Tae 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.6

The purpose of this study is to compare the degradation characteristics by subcritical water of RDX contaminated soil using batch mode and dynamic mode devices. First, upon application of RDX contaminated soil, RDX treatment efficiency was increased with increasing the temperature in both modes. At 150℃, the treatment efficiency was 99.9%. RDX degradation efficiency got higher with lower ratio of solid to liquid. However, the treatment efficiency in the dynamic mode tended to be decreased at a certain ratio of solid to liquid or lower. The treatment efficiency was increased when it took longer time for the reactions in both modes. As the results of analysis on concentration of treated water after subcritical water degradation, the RDX recovery rate of dynamic and batch modes at 150℃ was 10.5% and 1.5%, respectively. However, both modes showed very similar recovery rates at 175℃ or higher. RDX degradation products were analyzed in treated water after it was treated with subcritical water. According to the results, RDX degradation mechanism was mostly oxidation reaction and reduction reaction was partially involved. Therefore, it suggested that most of RDX in soil was degraded by oxidation of subcritical water upon extraction. According to this result, it was found that both batch and dynamic modes were very effectively applied in the treatment of explosive contaminated soil.

단롤법으로 제조한 AISI 310 스테인레스강의 급냉 조직에 관한 연구

최재헌,오명석,조성석,이용호 ( J . H . Choi,M . S . Oh,S . S . J,Y . H . Lee ) 한국열처리공학회 1996 熱處理工學會誌 Vol.9 No.1

Melt-quenching of steels leads to various metallographic effects such as refinement of grain size, extension of the solid solubility of carbon and alloying elements, and is expected to improve the mechanical properties of conventional steels. Furthermore, this technique is a useful method for producing sheet directly from liquid state. And it will lend itself to development as a continuous cast process which offers significant savings in energy and product costs. The purpose of this study is to present the microstructures of melt-quenched austenitic stainless steels. As the results of this study. the morphology of melt-quenched microstructure show that the roll contact area is columnar structure. and the free surface area is dendrite structure. As the line speed increases, the ratio of d_(colunnar)/d_(total) increases from 0.12 to 0.60, but the ribbon thickness decreases from 150㎛ to 30㎛.

논문 : 중기 밀턴의 종교적, 윤리적, 정치적 이상주의 -그의 영웅적 소네트와 산문의 관련성을 중심으로

최재헌 ( Jae Hun Choi ) 한국영어영문학회 2010 영어 영문학 Vol.56 No.1

에이드리엔 리치의 레즈비언/페미니스트 시와 시학

최재헌(Choi Jae-Hun) 신영어영문학회 2002 신영어영문학 Vol.21 No.-

Since her first collection of poetry, A Change of World (1951), appeared, Adrienne Rich has been a major and influential figure in the literary world. As a poet, feminist thinker, and political activist, she has been not only providing some of the best-written poetry of recent times, but also has written some of the most scholarly books of feminist criticism, such as Of Woman Born: Motherhood as Experience and Institution (1976) and On Lies, Secrets and Silence (1979). Her essays provide an important context for her poems. Rich’s style and subject matter have undergone significant changes. From the 1970s, Rich began to identify herself as a radical feminist and develop a distinctively woman’s voice. Rich also became aware of the need for a poetic language to explore and rename the unique experiences of women hitherto silenced or unrepresented in literature. So she attempted to shape a language capable of articulating the maternal and feminine experience. Feminist scholars responded in various ways to Rich’s controversial essay “Compulsory Heterosexuality and Lesbian Existence” (1980), but it has become a cornerstone of feminist and lesbian theorizing. She not only offered a critical analysis of heterosexuality, but reconceptualized lesbian love as natural and normal. Now a politically active lesbian, Rich has accordingly narrowed her poetic perspective to accommodate that position. Rich is both controversial and celebrated for her activism, and developed into not only one of the most widely read but also the most widely resisted woman poets of the century.

특집논문 : 국제자유도시 개발의 성공적 추진 ; 제주국제자유도시의 과제와 발전전략 모색

최재헌 ( Jae Heon Choi ) 한국도시지리학회 2005 한국도시지리학회지 Vol.8 No.3

『압살롬과 아키토펠』의 풍자와 수사적 전략

최재헌 ( Jae Hun Choi ) 한국밀턴과 근세영문학회(구 한국밀턴학회) 2002 중세근세영문학 Vol.12 No.1

『실락원』에 나타난 알레고리 연구 : 혼돈을 중심으로

최재헌(Choi Jae-Hun) 신영어영문학회 1997 신영어영문학 Vol.9 No.-

북한 금융시스템 연구 - 몽골 사례를 통해 본 개발은행 설립의 필요성을 중심으로 -

최재헌 ( Choi Jae Heun ) 동국대학교 안보연구소 2021 북한학연구 Vol.17 No.2

북한은 사회주의 계획경제하에서 모든 자금을 국가가 분배·통제하는 재정관리를 근간으로 하고, 중앙은행을 중심으로 한 일원적 은행제도를 유지하였다. 하지만 1990년대 이후 경제난 속에서 국가재정에 의한 기업소 앞 자금공급이 축소되면서 재정의 보조에 불과했던 금융의 역할이 강조되고 있다. 한편 김정은 집권 이후 지방을 단위로 하는 상업은행 제도의 도입 등 개선 조치가 있었으나, 사금융에 대한 의존도가 여전히 높고 상업은행은 신뢰도가 낮아 제 기능을 발휘하지 못하고 있다. 따라서 북한의 침체된 산업 정상화를 위해서는 보다 적극적인 금융의 역할이 요구되며, 개발은행 설립을 통해 전략적 중점산업에 필요한 장기 설비자금을 우선 지원함으로써 경제 활성화를 위한 화폐순환의 동맥을 확장할 필요가 있다. 과거 중국, 베트남, 몽골 등 다수의 사회주의 국가들을 포함하여 많은 개발 도상국에서 개발금융을 도입하여 국내경제 회복의 마중물 역할을 수행하게 하였다. 특히 2011년 추진된 몽골개발은행의 설립·운영 사례를 분석하여 북한에 주는 시사점을 제시하고자 한다. 이를 바탕으로 본 연구는 북한 당국도 시장화 진전에 따라 증가한 민간 보유자금을 산업자금으로 전환하기 위한 북한개발은행의 설립을 고려할 필요가 있다고 결론지었다. Under the socialist planned economy, North Korea maintained mono-banking system centered on the central bank, based on fiscal management in which all funds were distributed and controlled by the state. However, in the midst of economic difficulties since the 1990s, the role of finance is being emphasized as the supply of funds to enterprises by the state finances has been reduced. Meanwhile, since Kim Jong-un took power, improvement measures have been taken, such as the introduction of the regional commercial banking system, but the dependence on private finance is still high and the regional commercial banks are not functioning properly due to low reliability. Therefore, in order to normalize the stagnant industry in North Korea, a more active role of finance is required, and it is necessary to expand the artery of money circulation for economic revitalization by providing long-term facility funds necessary for strategic key industries through the establishment of a development bank. In the past, many developing countries, including a number of socialist countries such as China, Vietnam, and Mongolia, introduced development finance to serve as a catalyst for the recovery of the domestic economy. In particular, by analyzing the cases of establishment and operation of the Development Bank of Mongolia promoted in 2011, some implications would be suggested for North Korea. Based on this, this study concluded that the North Korean authorities also need to consider the establishment of the North Korea Development Bank to convert the privately held funds that have increased with the progress of marketization into industrial funds.

『실낙원』을 어떻게 가르칠 것인가

최재헌(Jae-Hun Choi) 한국영미문학교육학회 2007 영미문학교육 Vol.11 No.1

한반도 도시체계의 발달과 전망

최재헌(Jae Heon Choi) 한국도시지리학회 2000 한국도시지리학회지 Vol.3 No.1

The urban system within the Korean peninsula has developed separately between South and North Korea. This paper intends to investigate general characteristics of the Korean urban system development from a systems perspective by dividing attributes, linkages, hierarchical structure, and urban system change. The Korean urban development is characterized by metropolitanization, conurbation, emergence of new industrial cities towns and satellite cities, and stagnation of small cities. The polarized pattern of population distributions in Seoul and Pusan have been alleviated towards the growth of mediem sized and provincial regional centers, which can be identified in the linkage structure. Although Seoul and Pusan are still too powerful in the Korean urban system, regional centers and medium sized cities have gained their own power in the urban system. The next urban system is expected to be under influence of globalization, unification, and other socio-environmental changes in the way of enhancing interdependences.