• Ocean and Polar Research
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• 제30권2호
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• pp.193-205
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• 2008

A model of the current and seasonal volume transport in the East China Sea was used to investigate the origin of the Tsushima Warm Current (TSWC). The modeled volume transport field suggested that the current field west of Kyushu ($30^{\circ}-32^{\circ}N$) was divided into two regions, R1 and R2, according to the bottom depth. R1 consisted of the Taiwan Warm Current (TWWC) region and the mixed Kuroshio-TWWC (MKT) water region, while R2 was the modified Kuroshio water (MKW) region west of Kyushu. The MKW branched from the Kuroshio and flowed into the Korea/Tsushima Straits through the Cheju-Kyushu Strait, contributing 41% of the annual mean volume transport of the TSWC. The TWWC and MKT water flowed into the Korea/Tsushima Straits through the Cheju-Kyushu and Cheju Straits, contributing 32% and 27% of the volume transport, respectively. The maximum volume transport of the MKW was 53% of the total volume transport of the TSWC in November, while the maximum volume transport of the water in the R1 region through the Cheju-Kyushu Strait was 41% in July. Hence, there were two peaks per year of volume transport in the TSWC.

• Korean Journal of Acupuncture
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• 제37권4호
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• pp.276-283
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• 2020

Objectives : In each section of Huangdineijing, we reviewed how the actual clinical application of Five-Transport-points was reflected and looked at the pattern of the application at the time. Methods : The contents related to Five-Transport-points in Huangdineijing were collected from each part, and analyzed. Results : There was a great difference in the number and contents of the clinical application of each Five-Transport-point for each 12 meridian, and only 28.3% of all Five-Transport-points had been related to clinical treatment. In addition, in specific applications, spring point, stream point, and sea point were used more often than well point, and Five-Transport-points between the same meridian or different meridians were used in combination as needed. Conclusions : Five-Transport-points described in Huangdineijing are intended to be operated within the overall framework structurally or functionally with a certain principle, but as a result of comprehensive analysis of specific examples of clinical application, there was a difference in the application between Five-Transport-points. This indicates that at the time of the establishment of Huangdineijing, which was the early stage of the development of Traditional East Asian Medicine, a variety of miscellaneous acupuncture methodologies were used in addition to those based on five elements principle.

• 한국해안·해양공학회논문집
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• 제33권1호
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• pp.13-29
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• 2021

본 연구에서는 해수의 유동에 관한 3차원 수치모델을 사용하여 경기만 한강 하구에서의 염 수송에 대한 메커니즘을 분석하였다. 수치모델의 모의 기간은 갈수기와 홍수기를 포함하는 2020년 1월 20일부터 9월 20일까지 약 245일이며, 모델 결과와 관측 자료의 비교를 통해 해수의 유동 및 염분 변화에 관한 수치모델의 재현성을 입증하였다. 한강 하구에서 염의 교환이 활발하게 이루어지는 염하수로의 북단과 남단 지역에 대해서 염 수송량(FS)을 산출하였다. 염 수송에 대한 발생 기작을 세부적으로 분석하기 위해 FS를 담수 유입에 의한 염의 이류 수송(QfS0), 수평 및 수직적인 유속 차이에 의한 염의 확산 수송(FE), 조석 변동성을 가진 유속과 염분의 위상 차이에 의한 염의 수송(FT)으로 분해하였다. 갈수기와 홍수기의 월 평균 염 수송량에 의하면, 두 기간 모두 외해로부터 한강 하구 지역으로 유입되는 염의 대부분은 FT에 의하여 강화도 남부 수로를 통해 수송된다. 반면에, 한강 하구로부터 외해로 유출되는 염의 대부분은 QfS0에 의하여 영종도 동부 수로를 통해 수송된다. 한강 하구에서 평균적인 염의 수송은 갈수기 동안 FT에 의하여 한강 하구의 상류 방향으로 수송되며, 홍수기 동안 QfS0에 의하여 외해 방향으로 수송된다. 결과적으로, 경기만 한강 하구에서의 염 수송은 외해 방향의 수송을 발생시키는 QfS0와 한강 상류 방향의 수송을 발생시키는 FT의 상호작용에 의하여 결정된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1327-1334
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• 2009

According to the construction plan of Samcheok electric power complex from year 2009 to year 2020, many people are interested in this area. This national project which invests about 8.6 trillion won will have great influence to rail transport considering current depression days. Samcheok electric power complex will be the largest plan in Korea, and it is necessary to have railroad construction plan as soon as possible considering the route change of domestic coal transport and the possibility of coal transport by rail from North Korea, Russia and China after reunification of Korean peninsula. Also, Samcheok electric power complex will be located in the east area railroad route and it is important to study about this area. This study will mention about the railroad route of east sea north line and Pohang $\sim$ Samcheok line, and review the prospect and strengthening method of coal transport by railroad according to the construction of Samcheok electric power complex.

• 대한설비공학회지:설비저널
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• 제9권2호
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• pp.111-117
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• 1980

The optimum methods of transport of fresh mackerel caught at korean coast and neighboring sea were investigated. The quality of mackerel after 3 day-stored with ice showed that the freshness were still kept. The temperature fluctuation of mackerel during transport with ice from Busan to Seoul indicated below $5^{\circ}C$, recommended by I.I.R. Heat loss of iced mackerel in transit was calculated and converted into ice weight in case of cargo truck and insulated truck. It was assumed that the semi-dressed mackerels were more effective and economic than the round ones during transport.

• Journal of Advanced Marine Engineering and Technology
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• 제35권6호
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• pp.867-873
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• 2011

The transportation of a truss-spar hull from a transport barge of 6000 ton topside module on the spar hull is investigated in the present study. Two possible routes from a fabrication yard in Teeside, England to the Gulf of Mexico are considered in the paper. The results of motion responses of the transport barge obtained from a spectral analysis and the limiting criteria of sea fastening, deck wetness and lateral acceleration are compared and the route selection is discussed. Long-crested waves and short-crested seas as well as the joint probabilities of significant wave heights and wave periods in different sea areas are considered. Generally speaking, the results for long-crested seas are higher than those for short-crested waves.

• Journal of the korean society of oceanography
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• 제32권1호
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• pp.8-16
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• 1997

The ventilation theory developed by Luyten, Pedlosky and Stommel (1983) is applied to the East Sea to understand the general circulation pattern of the Intermediate Water, especially the ventilated circulation beneath the Tsushima Warm Current. The original model is slightly modified such that it takes the inflow-outflow of the Tsushima Current into consideration. Results of the model indicate that for sufficiently strong Ekman pumping, the Intermediate Water circulates cyclonically by ventilation. The Intermediate Water subducts beneath the Tsushima Warm Water through the western boundary layer. Off the western boundary layer, it turns northward, outcrops to the north by passing the polar front and continues to flow northward until it finally is absorbed by the northern boundary layer. This result seems to be compatible with some recent observations. Over the ventilated area, the transport of the Tsushima Current is negligible and most transport occurs in the shadow area where the Intermediate layer is motionless indicating that, over the deep motionless layer, the two-layered vertical structure under consideration becomes substantially single-layered.

• Fisheries and Aquatic Sciences
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• 제7권2호
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• pp.90-95
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• 2004

An analytical model for predicting the convection-diffusion of solute dumped in a homogeneous open sea of constant water depth has been developed in a time-integral form. The model incorporates spatially uniform, uni-directional, mean and oscillatory currents for horizontal convection, the settling velocity for the vertical convection, and the anisotropic turbulent diffusion. Two transformations were introduced to reduce the convection-diffusion equation to the Fickian type diffusion equation, and then the Galerkin method was then applied via the expansion of eigenfunctions over the water column derived from the Sturm-Liouville problem. A series of calculations has been performed to demonstrate the applicability of the model.

• 태양에너지
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• 제20권4호
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• pp.9-16
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• 2000

This paper represents the heat storage performance of the flat plate solar collector. This research aims to application for fishing ship on the sea, and the solar collector has among of motions with pitching and rolling thus, this collector has to be a forced type circulation. In this research, we investigated the solar collector performance for the various collector tilt angle. As the experimental results with three types, we found that the S-type collector was excellent.

• 한국중재학회지:중재연구
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• 제21권3호
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• pp.189-211
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• 2011

This article aims at analysing the practical problems of FOB and CIF terms relating to Incoterms$^{(R)}$2010 in case of L/C transactions and presenting the defending measures against them. According to Incoterms$^{(R)}$2010, FOB and CIF terms are to be used only for sea or inland waterway transport and require the seller deliver the goods on board the vessel nominated by the buyer at named port of shipment. So if FOB and CIF terms will be used in sea transport under L/C transaction, the seller should ship the goods on the nominated vessel and present the shipping document indicating "on board vessel" to the issuing bank but the parties agree to present the received bill of lading according to special condition on L/C which is" received bill of lading are acceptable". In practical transaction, FOB and CIF terms are usually used in aircraft cargo, container cargo or multimodal transport. these facts are a violation of Incoterms. Incoterms$^{(R)}$2010 which regulated that FOB and CIF terms may not be appropriate where goods are handed over the carrier before they are on board the vessel for example goods in container. These transactions are a temporary expedient and breach of Incoterms in the international trade which must be corrected as soon as possible.