• Journal of the Korean Society for Library and Information Science
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• v.35 no.4
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• pp.25-50
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• 2001

The purpose of this study Is to investigate the possibility and the limit of the application of the registration data to the description of records and archives by analyzing of the elements in the registration of records prescribed in the Record and Archives Management Act of Korea. Registration data provides the descriptive information of records at item or file levels. And also the registration data makes an important role of providing the primary descriptive information for progressively describing the series and group level of archives by archivist, which eventually conform the principle of the multi-level description. Therefore the registration of records is one of the management process of records which makes records to be a manageable objects. In addition to that the registration of records is the first level in building the multi-level description of records and archives.

• Journal of the Korea Convergence Society
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• v.10 no.3
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• pp.149-155
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• 2019

In this study, the multiplicity of synchronous online class discussion activity is explored at conceptual level. From the cultural-historical activity theory (CHAT), each utterance may be considered as a product of the activity system. Alderfer's ERG theory is employed as another theoretical framework for the study. Based on the subject's existence, relationship, growth needs, their class discussion activities constitute four different dimensions: physical/biological, cultural/institutional, social/relational, and cooperative knowledge construction. It is inherent in individual activities and has a different arrangement according to their interests and situations, and at the same time acts as a factor of cooperation and competition among the participants. Through this, collective discussion activities represent complex and dynamic development patterns.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 1996.06a
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• pp.387-392
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• 1996

• Korea and Global Affairs
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• v.1 no.2
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• pp.149-170
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• 2017

This paper aim to find activities related to science and technology in the field of Official Development Assistance in Korea and to research its meaning. In order for Korea to achieve greater results through international cooperation in science and technology and ODA, it seems to be the primary task to establish a foundation for collecting social opinions. In other words, when civil society and the private sector are not willing to participate, international cooperation has many limitations in achieving substantial benefits because it embodies the problem of domestic politics. And the science and technology ODA will be a factor considered to be more important variable in the international political order in which multiple actors such as supranational organizations and social organizations play a role in the multi-layer.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.38 no.2
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• pp.164-171
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• 2002

In this study, a mass-spring model is used to dynamically describe and calculate the shape and movement of a mid-water trawl system. This mathematical model theorizes that the factors constituting the system are the material points and the external forces such as hydrodynamic load, gravity, and buoyancy act on these material points. In addition, it surmises that these material points are connected to each other by springs, the springs do not have any mass, and the internal force acts on these springs. The non-linear differential equations are implicitly integrated with time for guaranteeing a stable solution. The dynamic simulation by the mass-spring model shows the status of the gear such as fishing gear depth, distance between doors, shape of the gear, and tension of each line. It depends on the parameters such as towing force, warp length, force of a sinker, buoyancy of a float, type of door and netting materials. The validity of the model is verified by comparing simulation motions of a trawl system obtained from computed values to those from an actual experiment.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.10a
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• pp.50-51
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• 2000

갈치는 열대에서 온대에 걸쳐 세계적으로 널리 분포하고 있는 난류성 어류로 비교적 깊은 곳에서 서식하나 연안의 얕은 곳에 와서 산란하고,$^3$ 연직이동이 매우 심하여 해가 들기전에 저층으로 가라앉기 시작하고 밤에는 중층으로 떠올라서 분산한다. 제주도 연근해에서는 소형선박으로 수동식 채낚기 어구와 선상 집어등으로 갈치를 유집하여 어획하고 있다. (중략)

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.39 no.1
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• pp.33-43
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• 2003

The midwater pair trawl which is being used at present in Korea have several problems. Firstly, it is difficult to control the net height on high towing speed. Secondly, net breaking often occurs owing to floats and thirdly, the volume of net on the net drum is so large. This study is aiming for examining the possibility of application for the Korean midwater pair trawl through the model experiment of non-float midwater pair trawl. The model of non-float midwater pair trawl was manufactured as 1/100 of the full scale net which is being used in bottom pair trawl for 850ps class considering the Tauti's Similarity law. The model experiment was carried out to analyze the opening efficiency according to the variation of lower warp length and the opening efficiency was investigated between th proto type and non-float type. The results obtained can be summarized as follows ; 1. The hydrodynamic resistance of non-float type was about 10~20% smaller than that of the proto type and it increased about 1ton according to the increase of dL at the condition of the same flow speed. The resistance acting on the lower warp decreased about 5% but that of the upper warp increased according to the increase of lower warp length (dL) at the condition of the same flow speed. 2. The net height of the non-float type decreased almost linearly according as the increased of flow speed and it increased in a logarithmic functional form with the increase of the lower warp length at the condition of the same flow speed. On the decreasing rate of the net height, the non-float type was lower than the proto type and the difference of the decreasing rate was about 12% at 3.0 knot, 25% at 4.0 knot, 25% at 4.0 knot respectively when dL was 30m. 3. The net width of non-float type was not varied so much as only 2m range and was larger than that of proto type. 4. The mouth area of non-float type decreased in a exponential functional form. On the decreasing rate of the mouth area, the non-float type was lower than the proto type. The filtering volume increased in a logarithmic functional form with increasing flow speed and the filtering volume of proto type decreased steeply over 3.0knot, but that of non-float type increased until 4.0knot. 5. The optimal length of lower warp was when the value of dL was about 30m and the optimal position of front weight was at the connection point of four net pendants.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.59-60
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• 2003

감성돔(Black porgy, Acanthopagrus schlegeli)은 우리나라 서ㆍ남해안 전역과 동중국해, 북해도 이남의 일본 연안에 광범위하게 분포하는 어종이다. 정착성 어종이나 동중국해로 회유하는 특성도 가지고 있으며, 서식 수심은 100 m 이내의 암반 지역으로 저층 및 중층에 주로 분포하고 있다. 최근 연근해 어족 자원의 감소로 인해 수산자원의 안정적인 공급에 문제가 발생하고 있으며, 이를 해결하기 위해 1998년부터 경남 통영에 바다 목장 사업이 진행되고 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.10a
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• pp.31-32
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• 2001

어구의 형상과 움직임은 어구를 구성하는 부품의 물리적인 특성 및 어구의 디자인과 예망속력 및 끌줄 길이의 변화와 같은 어구 조작방법에 따라 달라지며, 이러한 변화는 어획량에 매우 큰 영향을 미친다. 따라서 어구의 디자인과 어구 조작방법에 따라 달라지는 어구의 형상과 거동을 예측할 수 있다면 성능이 우수한 어구를 개발할 수 있으며, 어구를 운용하는데 있어서도 중요한 정보를 얻을 수 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.37-38
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• 2001

인공어초는 1971년부터 시설해오고 있으며, 1999년까지 전국 연안 1,200개소에 약 7,000,000공㎥가 시설되었다 (해양수산부, 2000). 이들 어초는 대부분 침설어초이며, 금후 시설량이 가속적으로 증대될 것으로 예상된다. 그러나 침설어초의 시설량이 증대됨에 따라 매몰을 최소화하고 대상으로 하는 어류의 위집을 극대화 할 수 있는 시설지의 확보가 무엇보다 선결 과제로 대두되고 있다. (중략)