• Journal of the Korean association of regional geographers
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• v.7 no.4
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• pp.105-119
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• 2001

Currently serious conflicts arose for the use of coastal area in Korea. However, there is no mediation program or mediators' activities for conflict resolution which are shown in the developed countries. Even though, the MOMAF(Ministry of Maritime Affairs and Fisheries) was established in 1997 and the Division of Coastal Zone Management under the Ministry took over the authority to establish ICM program and formulated the CZMA(Coastal Zone Management Act) in 1998 after understanding the seriousness of coastal degradation due to the importance of coastal zone management and the understanding of dispute resolution, it still lacks consistency among legislative power on the continuous policy for wise coastal use and management which results coastal conflicts. The objective of this study is to lay the evaluation criteria for the formalized objective evaluation among disputants of coastal conflicts for the better understanding and characterizing of coastal conflicts in Korea. In order to do so, this study has adopted the PCA(Principal Component Analysis) for the subtraction of the components of evaluation mechanism to describe the present conditions of conflicts in the selected study area(Sihwa lake), to analyze the problems, and then to explore alternative approaches for resolving the conflicts. As research methodologies, we have depended upon literature review and field survey methods. As field survey methods, we employed structured questionnaires for the various samples from the experts of research institutes, professors, representatives of NGOs and citizens. Survey results suggested that 5 representative elements comprising 35 detailed elements could be identified. Based on these results, this study was able to identify and classify the evaluation mechanism and help to resolve coastal conflicts in Korea.

• Korean Journal of Logic
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• v.10 no.2
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• pp.1-22
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• 2007

본 논문에서 필자는 먼저 "차이를 만들지 않는다(Makes No Difference)"는 논증(줄여서 MND 논증)을 소개하고 이에 대한 앨런 베이커(Alan Baker)의 반론을 자세히 살펴본다. MND 논증, 특히 그 전제를 제대로 평가하기 위해서는 반사실적 조건문에 대한 분석이 필요한데, 베이커는 이를 위해 이갈 크바크(Igal Kvart)의 분석을 이용한다. 이에 필자는 크바트의 분석을 비판함으로써 이에 의존한 베이커의 주장을 비판한다. 이를 위해 필자는 Fine-Tuning 논증을 예로 삼아, 크바트의 반사실적 조건문에 대한 분석, 특히 그의 반법칙적 조건문에 대한 분석은 실제 과학자들의 논의와도 상충되며, 이 과학자들의 논의를 바탕으로 한 철학적 논쟁과도 상충되기 때문에 그의 분석을 받아들일 수 없음을 보인다. 이를 통해 필자는 크바트의 분석에 의존하여 MND 논증을 공격한 베이커의 결론도 마찬가지로 받아들일 수 없다는 것을 보인다.

• Journal of Korean Society of Transportation
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• v.34 no.1
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• pp.68-80
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• 2016

Interest in freeway truck traffic has increased largely due to greater safety concerns regarding truck-related crashes. The negative interactions between slow-moving trucks and other vehicles are a primary cause of hazardous conditions, which lead to crashes with larger speed variations. To improve operational efficiency and safety, providing a climbing lane that separates slow-moving trucks from higher performance vehicles is frequently considered when upgrading geometrics. This study developed an operations strategy for freeway climbing lanes based on traffic conditions in real time. To consider traffic safety when designing a dynamic strategy to determine whether a climbing lane is closed or open, various factors, including the level of service (LOS) and the percentage of trucks, are investigated through microscopic simulations. A microscopic traffic simulator, VISSIM, was used to simulate freeway traffic streams and collect vehicle-maneuvering data. Additionally, an external application program interface, VISSIM's COM-interface, was used to implement the proposed climbing lane operations strategies. Surrogate safety measures (SSM), including the frequency of rear-end conflicts and, were used to quantitatively evaluate the traffic safety using an analysis of individual vehicle trajectories obtained from VISSIM simulations with various operations scenarios. It is expected that the proposed algorithm can be the backbone for operating the climbing lane in real time for safer traffic management.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.2
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• pp.637-643
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• 2014

Recently there have been an increasing amount of bicycle accidents along with the increased usage of bicycles. Bicycle accidents occur frequently by perpendicular collision at the inner intersection. Bicycle traffic is especially concentrated in residential areas and around schools which results in the vulnerability of cyclists. This paper is to inform the potential risks of collisions between bicycles and cars turning right at the intersections using simulation analysis which focuses on the pavement edge of intersection geometric designs factor and checks on the drivers behavior. The result of the analysis shows that as the curve radius of pavement edge at the intersection becomes larger and the more attention drivers are paying to the rear by turning their heads to the right, the potential risk of collisions between bicycles and cars turning right will decrease.

• Journal of Korean Society of Transportation
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• v.31 no.6
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• pp.22-33
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• 2013

Currently average daily traffic using Hi-pass has increased over 3 times that of 2008 and more than half of highway traffic now uses High-pass. At this juncture, reassessment on the overall operation of Hi-pass is required to improve the safety aspect of toll booths and the flow of traffic. Although existing Hi-pass operation manual presents the methods of alignment, they do not reflect actual forms of vehicles and do not properly take the safety of toll booth and flow of the traffic into consideration. In order to compensate these problems, this study classifies highway tollbooths into two categories of mainline type and interchange type, and establishes the standard of lane alignment by traffic conflict analysis based on the types divided according to geometric structure or environment around the tollbooths. In addition, traffic flows around the tollbooths were reflected with the stage to arrange Hi-pass lanes according to the volume of traffic on the lanes for Hi-pass.

• Parasites, Hosts and Diseases
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• v.32 no.2
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• pp.101-110
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• 1994

This report describes the structures of high-mannose-type N-linked oligosaccharides in glycoproteins synthesized by the microfilariae of Diroflcrio immitis. Microfilariae of D. immitis were incubated in vitro in media containing 2-(3H) mannose to allow metabolic radiolabeling of the oligosaccharide moieties of newly synthesized glycoproteins. Glycopeptides were prepared from the radiolabeled glycoproteins by digestion with pronase and fractionation by chromatography on concanavalin A Sepharose. Thirty eight percent of 2- (3H) mannose incorporated into the microalariae of D. immitis glycopeptides was recovered in high mannose-type asparagine-linked oligosaccharides which were bound to the immobilized lectin. Upon treatment of 2-(3H) mannose labeled glycopeptides with endo - β- N- acetylglu co saminidase H , the high mannose type chains were released and their structures were determined by high performance liquid chromatography and exoglycosidase digestion. The major species of high mannose-type chains synthesized by microfilariae of D. immitis have the composition Man5GlcNAc2, Man6ClcNAc2, Man7GlcNAc2, and Man8GlcNAc2. Structural analyses indicate that these oligosaccharides are similar to high mannose-type chains synthesized by vertebrates.

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.285-285
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• 2017

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.4
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• pp.14-34
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• 2023

The purpose of this study was to calculate the appropriate yellow-signal time for intersections, to find out the relationship between the approach speed and intersection width when calculating the time, and to secure safety by minimizing conflicts and dilemma sections in intersections that change according to the signal operation. For this purpose, 6,824 data points from 5 intersections were collected and analyzed. The main results of the study are as follows. First, the approach speed of individual vehicles in different lanes was analyzed, and the width of an intersection was defined by considering the conflict in each direction. Second, we developed a multiple regression model based on the approach speed and conflict points, which compensated for the problems of an existing formula. Third, a standard table is presented for applying the appropriate yellow-signal time according to the approach speed and intersection width based on a development formula. A method is also presented to determine the safety of the length of the dilemma according to the change in the yellow-light time by presenting a calculation table that can cross-analyze the yellow-signal time and a dilemma section using the relationship.

• Journal of Korean Society of Transportation
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• v.36 no.3
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• pp.169-183
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• 2018

Aggressive driving leads to a greater crash potential because it threatens surrounding vehicles. This study conducted traffic simulation experiments using driving behavior data obtained from multi-agent driving simulations. VISSIM traffic simulator and surrogate safety assessment model (SSAM) were used to identify the impacts of aggressive driving on traffic stream in terms of safety and operational efficiency. Market penetration rates (MPR) of aggressive driving vehicle, coupled with various traffic conditions, were taken into consideration in analyzing the impacts. As expected, it was identified that aggressive driving vehicles tended to deteriorate the traffic safety performance. From the perspective of operational efficiency, interesting results were observable. Under level of service (LOS) A, B, and C, it was observed that the average travel speed increased with greater MPRs. Conversely, the average travel speed decreased with under LOS D and E conditions. The outcome of this study would be effectively used for developing safety-related policies for reducing aggressive driving behavior.

• Journal of Korean Society of Rural Planning
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• v.5 no.1 s.9
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• pp.76-86
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• 1999

본 연구는 미국의 실용주의 철학자인 존 듀이의 공생적 합리주의 모형에 대한 분석과 이 모형의 계획이론의 적용에 대한 사회규범적 논의에 관한 것이다. 다양한 사회과학분야의 문헌고찰과 듀이를 비롯한 실용주의학파들의 연구를 중심으로 이루어진 본 연구는, 최근 논의되고 있는 사회 규범적 차원에서 논의되고 있는 계획이론의 이론적 근거를 존 듀이의 공생적 합리주의에서 찾고자 하였다. 민주주의의 속성상 계획과정에서의 상충과 갈등이 피할수 없는 현실이라면, 이러한 갈등과 상충이 발전적 도구로 존재할 수 있다고 제시한 듀이의 공생주의는 합리성의 가능성에 바탕을 둔 고전적 합리주의 이론을 대체할 수 있는 하나의 이론으로 제시될 수 있을 것이다. 존 듀이의 공생주의 이론에 대한 연구는 기존의 계획이론분야에서는 제시된 적이 없는 최초의 연구로서, 향후 계획이론 분야의 발전에 있어서 이론적 분석의 한 축을 제시했다는데 본 논문의 기여가 있다고 하겠다.