경기만 석모수도 수로제방 조간대층에 발달하는 경사이질암상층리의 퇴적학적 연구 - 오일샌드 탐사 적용가능성

최경식,전승수,김성필,박세진,Choi, Kyung-Sik,Dalrymple, R.W.,Chun, Seung-Soo,Kim, Sung-Pil,Park, Se-Jin 한국석유지질학회 2005 한국석유지질학회지 Vol.11 No.1

경기만 북부 석모수도 수로제방에 40 m 두께의 조수로 포인트바(tidal point bar) 퇴적층이 발달하고 있다. 수로 제방은 위로 볼록한 형태를 가지고 있으며 간헐적으로 간조선 근방에서 파랑기원의 침식면이 나타난다. 경사이질암상층리는 최대 25 m 두께로 발달하며 수로 방향으로 경사도는 14도에 달한다. 경사이질암상층리의 하부에는 밀물방향성을 갖는 사층리층이 발달한다. 석모수도는 썰물우세 수로이지만 밀물 방향성의 사층리가 우세하게 발달하는데 이것은 조수로의 전형적인 특성인 창조류와 낙조류리 상호 회피성에 기인한다. 경사이질암상층리는 세립사와 점토의 교호층리로 구성되며 상향 세립화의 경향성을 보인다. 석모수도의 거대한 크기와 한강으로부터의 멀리 떨어진 위치, 강한 조류의 영향으로 인해 퇴적층 내에는 한강의 계절적인 유량변동이 기록되지 않는다. An occurrence of inclined heterolithic stratification (IHS) is described from a tidal point bar in a 40-m-deep distributary of the macrotidai, Han River delta, Korea. The channel bank demonstrates a convex-upward profile with intermittent presence or wave-formed scarps and terraces near the low-water level. The vertical succession of IHS is approximately 25 m thick and dips into the channel with angles reaching up to $14^{\circ}C$. The IHS overlies 15 m of trough cross-bedded sand deposited in the channel bottom. Even though the channel as a whole is ebb dominated, the preserved cross bedding is predominantly flood directed because the mutually evasive nature of the ebb and flood currents causes the point bar surface to be flood dominated. The IHS itself consists of inter-stratified fine sand, sandy silt, and silt with an fining-upward textural trend. Seasonal discharge variations of the Han River are not obvious in the deposits, because tile large size, distal location, and energetic tidal environment of the studied channel reduces the impart of river-stage fluctuations.

오일샌드 탐사 및 개발을 위한 현생유사퇴적환경 연구의 중요성

최경식,Choi, Kyung-Sik 한국석유지질학회 2008 한국석유지질학회지 Vol.14 No.1

캐나다 오일샌드는 사우디아라비아의 원유 부존량과 맞먹을 만큼 방대한 매장량을 자랑하고 있는 대표적인 비재래 원유이다. 오일샌드 저류층을 구성하는 퇴적층은 조수우세 퇴적환경에서 형성된 수로충진층으로 구성되어 있다. 조수퇴적층은 외부에서 작용하는 에너지의 상호작용 결과 공간적으로 복잡하고 불균질한 물성을 가지는 것이 특징적이다. 오일샌드의 성공적인 개발을 위해서는 저류층내 물성의 공간적인 분포에 대한 심도있는 이해를 기반으로 하는 공법이 적용되어야 한다. 오일샌드 저류층의 특성화를 위해 사용되는 지질모델은 고기와 현생의 유사퇴적환경에 대한 비교연구를 기반으로 구축되며, 특히 현생 유사퇴적환경 연구는 저류층의 형성과정과 저류층 물성의 불균질성을 제어하는 외부 기구에 대한 정보를 제공하므로 정교한 지질모델 구축에 필수적인 요소로 인식되고 있다. 한국 서해안 조수우세퇴적환경은 캐나다 오일샌드 저류층이 형성된 퇴적환경과 유사한 것으로 판단되며, 이암파편층 분포, 퇴적상 및 층서 아키텍쳐 등과 같은 오일샌드 저류층 특성화에 필수적인 개념의 정립에 중요한 단서를 제공하는 것으로 평가받고 있어 그 중요성이 최근 큰 주목을 받고 있다. Oil sands in Canada are representative example of unconventional resources whose reserve estimates are as large as those in Saudi Arabia. Typical reservoir rocks of oil sands consist of channel-related deposits formed in a tide-dominated depositional setting. The tidal deposits are commonly characterized by spatially complicated and heterogeneous properties. Successful engineering methods to develop oil sands require in-depth understanding in the spatial distribution of reservoir properties. Geological model for oil sand reservoir characterization can be built on the basis of comparative studies of ancient and modem analogues. In particular, modern analogue studies become increasingly indispensable, since they provide better understanding in the reservoir-rock forming process and more importantly in the external mechanism responsible for the reservoir heterogeneity. Tide-dominated environment along the west coast of Korea is considered as one of the most excellent modem analogues of oil-sand forming depositional environment. Korean tidal environment provides insights on the origin of mud breccia, facies and stratigraphic architecture which are key issues to the characterization of oil sand reservoirs.

6.25 전쟁 시 중공군의 역할과 북한 유사시 중국의 역할 전망

최경식,Choi, Kyung-Sik 대전대학교 군사연구원 2010 군사학연구 Vol.8 No.-

The year 2010 is the 60th anniversary commemorating the Korean War. China intervened in the Korean War with the logics such as "To Resist the U.S.'s Aggression and Aid North Korea," "Save Endangered Home & defend Nation," and "If the Lips Are Gone, the Teeth Will Be Exposed to the Cold or If One of Them Falls, the Other is in Danger." However, China had a deep and long connection with North Korea through 1st Chinese Civil War, war against Japan imperialism, and 2nd Chinese Civil War. China has consulted with Kim Il-sung on his invasion of South Korea at the initial stage of development and played a casting vote role in the execution of the invasion plan. During the Korean War, the PLA supported the North Korea's regime by its action, and made the Korea Peninsula divide into two semi-permanently. Even after the war, China continues to maintain relations with North Korea by helping North Korea build the Kim Il-sung's Kingdom. Currently, whenever any issue related to North Korea rises in the international society, China definitely gets involved in those issues and exercises its power. Conditionally 'either armed aggression or, and wartime' in North Korea, China would follow the "Clause of Military Auto Intervention." In addition, China is very likely to establish refugee camps for North Koreans in the Northeastern-Three-Province and to provide rear bases or guerrilla camps for pro-Chinese sects. Furthermore, voluntarily playing a role as spokesman of North Korean Regime in the international society, China will exercise enormous influence on the reunification of the Korean Peninsula.

서안사변(西安事變)에서 중국공산당이 끼친 영향 분석

최경식 ( Kyung Sik Choi ) 한국군사학회 2008 군사논단 Vol.53 No.-

학술논문7 : 중국공산당 3중전회(全會) 성격 고찰 -11기 3중전회(全會) 이후 집단지도체제 교체기의 3중전회(全會)를 중심으로-

최경식 ( Kyung Sik Choi ) 한국군사학회 2015 군사논단 Vol.81 No.-

Beginning of the third plenary session of the 11th central committee of CPC, every the third plenary session is presented the reform and opening-up policy and ruling direction of collective leadership of CPC. Especially, the willing of reform and opening-up in every even number third plenary session which the collective leadership is changed, is stronger than a odd number third plenary session. The third plenary session of the 11th central committee was a historical turning point in the every third plenary session. In december 1978, CPC held the historic third plenary session of the 11th central committee, which ushered in the new historical period of reform and opening up. China had moved from Mao China to Deng China. The main points of China were that they should shift the focus of their work from class struggle to take economic construction as the central task. Reform and opening up of China is a very successful on the whole. But now the problem with China do not neglect yet. The existing collective leadership deeply aware of China``s reform and opening up has entered a crucial period and the deep zone, hitherto unknown arduousness and complexity. Nowadays easy to change problems have been changed, to stay are difficult row to hoe. While the hoe and not from a certain aspect, but from all aspects and the construction of the party and other aspects. China reform is the surface involved the most extensive, the largest audience, the broadest area, the deepest degree, the biggest difficulty and duration of the longest revolution. The third plenary session has become synonymous with Chinese reform and opening up.

平坦氷荷重을 받는 細長形 해양구조물의 動的 거동

최경식(Kyung-sik Choi) 한국해양공학회 1995 韓國海洋工學會誌 Vol.9 No.2

Regarding the development of offshore natural gas field near Sakhalin Island which is an ice-infested area, this study aims to estimate the dynamic ice load for construction of offshore structures operating in this region. In this paper the design ice load and dynamic responses of a slender Arctic structure upon continuous ice movement are studied. Crushing after a certain elastic deformation is assumed as a primary failure mechanism at the contact zone between semi-infinite level ice edge and the face of structure. Dynamic interaction forces are calculated using a modified Korzhavin's equation and a two-dimensional ice-structure interaction model is adopted. To verify the numerical model, dynamic analysis is performed for one of the Baltic Sea channel markers whose response patterns were previously observed.

쇄빙연구선 ARAON호의 북극해 실선시험을 통한 해빙의 재료강도 특성에 관한 고찰

최경식(Kyung-Sik Choi),이춘주(Chun-Ju Lee),임채환(Chae-Whan Rim),김현수(Hyun-Soo Kim) 대한조선학회 2011 大韓造船學會 論文集 Vol.48 No.3

중국(中國)의 령도집체(領導集體) 선출 패턴과 차기 지도부 예상

최경식 ( Choi Kyung-sik ) 한국군사학회 2017 군사논단 Vol.89 No.-

We can preconceive the post Xijinping through the 19th National Congress of the CPC will be held in autumn of 2017. CPC have a collective leadership system, the lead group is changed in a 10year-cycle. National Congress is held in a 5year-cycle, the lead group is changed at even number term, at odd number term we can know the key figure of the next term`s ruling power. At least five years ago, that is, we could know the core successors. CPC have been a painful history of the dictatorship, so in order to prevent the right to focus on a person, they have set a security device. That is the collective leadership system. the lead group is just the standing committee members of the Politburo of the CPC. The personnel selection criteria of the collective leadership system is to have both ability and political integrity. Based on this, the materialization factor is better-educated, professionally, more competent and younger in age. A farm team is CPC and the Communist Youth League, through this organization to explore talent, in order to have the expertise, they have been honed for a long time in the grassroots organs , and then go through the provincial or municipal Party Secretary The party post must be passed by the national representative, the Central Committee, the member of the Politburo and the member of the Politburo Standing Committee of the CPC. The highest organ of CPC is the Secretariat of the CPC Central committee, the core leadership is General Secretary. On this standard, the most likely successor is Huchunhua and Sunzhengcai. Among these factors, we predict that Huchunhua is likely to be the General Secretary.

중년여성의 혈청지질 수준에 따른 건강관련 체력요인 분석

최경식 ( Kyung Sik Choi ),손락성 ( Rak Seong Son ),유민호 ( Min Ho Yu ) 한국보건정보통계학회 (구 한국보건통계학회) 2004 한국보건정보통계학회지 Vol.29 No.1

북극해 항로의 전망과 쇄빙상선의 활용

최경식(KYUNG-SIK CHOI),조성철(SEONG-CHEOL CHO) 한국해양공학회 2003 韓國海洋工學會誌 Vol.17 No.6

For moving cargo between the North Pacific region and Northern European ports, the Northern Sea Route, along Russia's coastline, is 35-60% shorter than the traditionally used routes through the Suez or Panama Canals. In addition to its shorter distance, there exist extensive ports and shipping infrastructure, and the potential for developing new markets in Russia and other northern countries including Korea and Japan. These incentives attracted considerable attention from the international shipping and shipbuilding industries and have formed a cooperative international research program, called as the International Northern Sea Route Programme (INSROP). This paper is a general compilation of the historical usage, recent trade developments, the physical environment, and the practical considerations that may shape future operational mode of shipping in the NSR based on results from INSROP reports. This study focuses mainly on an operation of commercial icebreaking cargo vessels that may be utilized along the NSR.