• Journal of Navigation and Port Research
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• v.29 no.5 s.101
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• pp.447-455
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• 2005

Intra-block remarshalling is the task of rearranging into some target bays those containers which are scattered within around the block. If multiple transfer cranes installed in the block are all used together we may be able to complete the remarshalling task as early as possible. However, when multiple cranes are used simultaneously, there may occur significant delays if we do not carefully consider interferences between the cranes at the time of scheduling. Especially, delays caused by interferences occur more frequently in case of using non-crossing cranes. This paper presents an efficient heuristic method for assigning moves of containers to each crane and for determining an appropriate container moving order in a manner sensitive to the interferences. Simulation experiments have shown that the proposed method can effectively reduce delays in various environments.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.11a
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• pp.273-280
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• 2004

Intra-block remarshalling is the task of rearranging into some target bays those containers whim are scattered around the block, so that the containers can be loaded onto the ship ffficiently. Howeuer, if we rearrange the containers without considering the container larding sequence, too mud! rehandling work will be required at the time rf larding to fetch the right containers whim are stacked under the wrong ones. Therefore, the remarshalling should be done by moving the relevant containers in an appropriate order. This paper presents an efficient heuristic search technique for finding an appropriate container moving order during remarshalling to avoid rehandling at the time of larding. Simulation experiments have shown that the proposed method can generate rehandling-free solutions in a real time.

• Journal of Navigation and Port Research
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• v.30 no.6 s.112
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• pp.457-464
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• 2006

Remarshalling operation is one of the operations considered important in an automated container terminal to perform quickly loading operations and delivery operations. It arranges the containers scattered at a verticla yard block in order to reduce the transfer time and the rehandling time of ATC(Automated Transfer Crane)s. This paper deals with the remarshalling planning problem minimizing the weighted operation time. This problem can be decomposed into 2 subproblems, storage space assignment problem and operation sequencing problem Storage space assignment problem decides to where containers are transported in terms of transportation time cost.. With results of a previous subproblem, operation sequence problem determines the ATC operation sequence, which minimizes the dead-heading of ATC This study formulates each subproblem with mixed integer program and dynamic program. To illustrate the proposed model, we propose an instance to explain the process of remarshalling planning.

• Cross-Cultural Studies
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• v.49
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• pp.151-179
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• 2017

This paper explores envy and jealousy caused by conflicts between youth and old age in Philip Roth's The Dying Animal and Bumshin Park's Eungyo. In Roth's Novel, David became envious and jealous of a fictional man when he imagined "the pornography of jealousy." In this pornography, his imagined rival was a young man who was once David himself but was no longer young who might steal Consuela away from him. In this sense, David's envy towards this young rival can be called "self-envy." David considered sex an act of revenge on death. But his envy and jealousy undermined his power and effect. In Eungyo, envy and jealousy arose between Lee and Seo when they came into conflict because of Lee's literary talent and Eungyo. At first, Seo admired Lee. But he grew envious of Lee's talent when he gained popularity and success by publishing Lee's novels under his own name. He was engulfed in jealousy when he detected Lee's sexual desire for Eungyo. He even insulted Lee's old age, which enraged Lee. Lee's rage was mixed with his envy toward the young and his sense of betrayal against Seo. With Seo's death, all these negative feelings disappeared. Instead, Lee was captivated by the pulsing breath of life and its beauty he observed in Eungyo.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.173-174
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• 2015

컨테이너 터미널에서 이적작업은 적하작업과 반출작업을 신속하게 처리하기 위해 장치장에 흩어져 있는 컨테이너들을 재배치하는 것이다. 본 연구는 수직 배치형 장치장 블록 내에서 컨테이너 재배치 작업계획 문제를 다룬다. 재배치 작업계획은 대상 컨테이너, 옮겨질 위치 그리고 재배치 작업 순서를 정하는 것이다. 본 연구는 재배치 작업시간, 반출작업, 적하작업의 가중시간 비용을 최소화하면서 재배치 작업동안 공간 가용성이 만족되도록 장치위치와 작업순서를 함께 결정하는 혼합정수계획모형을 개발하였다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.213-214
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• 2001

일반적으로 척추동물 및 무척추동물들은 세균 및 기생충 등과 같은 외부물질의 침입으로부터 자신을 방어하기 위해 항균성 펩타이드를 생산하는 비특이적 면역체계를 가지고 있다고 알려져 있다. 최근까지 비특이적 면역기능을 수행하는 많은 항균성 펩타이드들이 포유류, 양서류 곤충, 및 식물 로부터 분리 정제되었고 구조 활성간의 연구가 활발히 진행되고 있으며 이러한 구조와 활성간의 연구는 거의 육상생물로부터 유래한 항균성 펩타이드에 한정되었고 해양생물, 특히 어류를 이용한 연구는 매우 미흡한 실정이다. (중략)

• Tuberculosis and Respiratory Diseases
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• v.62 no.1
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• pp.56-61
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• 2007

Pulmonary complications of ulcerative colitis are relatively uncommon and may present as a variety of disorders. Ulcerative colitis-related interstitial lung disease is extremely rare. There are a few case reports of nonspecific interstitial pneumonia in ulcerative colitis worldwide but none in Korea. We report a patient with ulcerative colitis related biopsy-proven nonspecific interstitial pneumonia, who responded to prednisolone (1 mg/kg) and mesalazine therapy.

• Journal of The Korean Association For Science Education
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• v.35 no.6
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• pp.1019-1030
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• 2015

This study examined the development of a teacher's teaching practice and identified argumentation-specific pedagogical content knowledge (PCK) and the influence of the argumentation-specific PCK on teaching practice in an argumentation classroom. The teacher has a Ph.D degree in science education, a 19-year teaching career, and no experience in instructing in an argumentation classroom. The developed program consists of nine lessons regarding photosynthesis for 7th graders. The teacher participated in a collaborative reflection with researchers after each lesson once a week and five times in total, which lasted for thirty minutes. All of the lessons were video- and audio-recorded and the transcript of lessons and collaborative reflection, pre- and post-survey related to argumentation, and researchers' journals were analyzed. Analysis of the data showed that the teacher emphasized group interaction showing utterances of listening, evaluating arguments, counter-arguing/debating, and reflecting on argument process after the fourth lesson although the teacher focused on individual argumentation showing utterances of talking, knowing meaning of argument, and justifying with evidence in the first three lessons. Also, the argumentation-specific PCK, which was identified with the understanding of students, nature of argumentation and argumentation task strategy, also influenced the development of teaching practice. The teacher comprehended the students' challenges in argumentation, developed her understanding of the nature of argumentation from an individual plane to social plane, and demonstrated a deep understanding of the task strategy by voluntarily joining in modifying the argumentation tasks.

• Proceedings of the Korea Society of Environmental Biology Conference
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• 2001.12a
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• pp.36-36
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• 2001

• The Science & Technology
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• no.10 s.461
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• pp.38-43
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• 2007