• Title/Summary/Keyword: Jinhae

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A method of environmental management using an ecological numerical model in Jindong Bay (진동만에서 생태계모델을 이용한 환경관리기법)

  • 김동선
    • Journal of Environmental Science International
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    • v.12 no.3
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    • pp.345-358
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    • 2003
  • Jindong bay at the northwestern part of Jinhae bay suffers from the occurrence of red tides in summer every year. In order to study the management methods of coastal environments, an ecological numerical model has been developed. The model experiments was forecasted that the load of nutrients from the land and field concentration will be cut down per 10% each. When we cut down 57.2% nitrogen load in the inner bay and 38.4% phosphorous load in the outer bay of bottom layer of the nutrients load from land and field concentration, the seawater quality standard levels up first grade. When we cut down 86.5% nutrients in the inner bay and 93.0% nutrients in the outer bay, the concentration of chlorophyll a decreases below 3.2 $\mu\textrm{g}$/(equation omitted)(an individual concentration of phytoplankton : 10,000cel1/ml), i.e. the red tides do not occur.

A Study on Disagreement of Family Finances and Related variables (가계의 재정불일치 및 관련 변인에 관한 연구)

  • 정선희;오정옥
    • Journal of Families and Better Life
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    • v.9 no.2
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    • pp.19-35
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    • 1991
  • The Purpose of this study is to search a tendency of financial disagreement and to identify the variables influencing on financial disagreement of husbands and wives. for this purpose, reviewing literatures and empirical research were conducted. The sample was selected from the husbands and wives living in Masan, Changwon and Jinhae. Among 336 respondents. 111 husbands and 225 wives were finally selected as datum sources. The data were analyzed by the statistical method such as frequency distribution percentile ,ANOVA. Peason's correlation and Regression analysis. The main results were as follows; 1) Most husbands and wives showed th high level of financial disagreements. 2) As for the related variables, socio-demographic and psychological variables such as husband's education. family income, communication and financial management behavior had turned out to be significant on the financial disagreement of wives. As for the husband's financial disagreement, husband's education and family income had a significant influence. 3) There were negative correlation between the financial management behavior and the financial disagreement of husbands and wives(r=-0.22. -0.35). 4) the family characteristics which were the best predictors of financial disagreement included; family income, financial management behaviro of husbands and wives.

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Environmental Studies Of The Jinhae Bay 3. Ecological Succession Of Phytoplankton Populations, 1974~1980

  • Yoo, Kwang Il;Lee, Jin Hwan
    • 한국해양학회지
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    • v.15 no.2
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    • pp.100-107
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    • 1980
  • 1974년 9월부터 1980년 1월까지 6년간 진해만에서 식물성플랑크톤 개체군의 생태적 천이에 관하여 조사하였다. 1974년 9월∼1975년 5월에는 천이계열이 Skeletonema costatum-Eucampia zodiacus Chaetoceros spp.-Nitzschia pungens- Leptocylindrus danicus, 1976년 7월-1978년 5월 Skeletonema costatum-Thalassiosira hyalina- Chaetoceros spp. -Leptocylindrus danicus(Nitzschia pungens), 1978년 7월-1980년 1월 Chaetoceros socialis-Skeletonema costatum-Chaetoceros spp. -Leptocylindrus danicus-Skeletonema costatum(Biddulphia mobiliensis)으로 천이계열이 바뀌어가고 있으며 이들은 계절에 따라 수온의 변화와 밀접한 관계가 있었다. 최근에는 이 해역에서 Skeletonema costatum이 계절에 관계없이 대량출현하여 이 종에 의해 점점 성숙한 천이계열을 형성해 가고 있다.

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Numerical Methods for Wave Response in Harbor

  • Kim, D.J.;Bai, K.J.
    • Selected Papers of The Society of Naval Architects of Korea
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    • v.1 no.1
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    • pp.4-14
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    • 1993
  • A natural and an artificial harbor can exhibit frequency (or period) dependent water surface oscillations when excited by incident waves. Such oscillations in harbors can cause significant damages to moored ships and adjacent structures. This can also induce undesirable current in harbor. Many previous investigators have studied various aspects of harbor resonance problem. In the present paper, both a localized finite element method(LFEM) which is based on the functional constructed by Chen & Mei(1974) and Bai & Yeung(1974) and an integral equation method which was used by Lee(1969) are applied to harbor resonance problem. The LFEM shows computationally more efficient than the integral equation method. Our test results show a good agreement compared with other results. In the present computations, specifically two harbor geometris are treated here. The present method by LFEM can be extended to a fully three dimensional harbor problem.

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The Evaluation of Optimum Hardening Agent Mixture Ratio for Surface Stabilization on Extremely Soft Marine Clay (초연약해성점성토 지반의 표층안정처리를 위한 최적고화재 배합비 산정에 관한 연구)

  • 천병식;한기열
    • Proceedings of the KSR Conference
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    • 2001.05a
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    • pp.408-415
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    • 2001
  • Hardening agent has been the traditional material for surface soil stabilization of soft ground. The aim of this study if to determine optimal mixture ratio of hardening agent in accordance with the required design specifications. Hardening agent consists of fly ash, gypsum, slag and cement for the ettringite hydrates and if effective for early stabilization of unconsolidated soil. The raw ground material is the clay that is widely found here and there in Korea. In this study, preliminary tests were performed to get optimal mixture ratio of stabilizer ingredient and marine clay in Jinhae was used to get physical and chemical properties. Laboratory tests of 50 stabilized soils were performed to get optimal mixture ratio for 16-stabilizer materials of 6 types, and mixture ratio of stabilizer ingredient and marine clay was determined.

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Biological Evaluation of off-shore Water Quality in Southern Coastal Waters with Asterias Aurensis Gametes (아므르불가사리(Asterias amurensis)의 배우자를 이용한 남해해역 연안해수의 생물학적 수질평가)

  • 유춘만;박지인;조기안;주현수;박종천;나명석
    • Journal of Environmental Science International
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    • v.8 no.1
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    • pp.1-6
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    • 1999
  • This study was carried out to evaluate off-shore water quality and to draw marine pollution map to Southern sea in Korea by bioassay using gametes and early development system of Asterias amurensis. From the bioassay, it was determined that the water qualites of Southern sea maintained the grade II, because development of A. amurensis were moderately inhibited. However, Sunchon, Kwangyang, and Jinhae Bay belonged to grade III, because development of A. amurensis were strongly inhibited. This could be due to the inflows of several river systems and poor water circulation. The water quality at Yosu island was the grade I, because A. amurensis were not inhibited in its early development.

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A Development Strategy for Hub-Port in Korea (우리나라 주요 항만의 중심항 발전전략)

  • 양항진;장봉규;정두식
    • Journal of Korea Port Economic Association
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    • v.21 no.1
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    • pp.23-44
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    • 2005
  • The port environment is rapidly changing in North-East Asia. Containerships are getting larger and faster and major shipping companies are converting to Hub & Spoke port networks on the transport systems. Therefore, the main ports in North-East Asia are intensively competing with each other for hub port. In terms of geopolitical position, locational conditions and external reputation of ports, Busan and Kwangyang ports have a comparative advantage in comparison with main ports in other countries. But in terms of weight of transshipment cargos in total container cargos, the quality of infrastructure in ports, the environment of logistics service and the cost of, using ports, Busan and Kwangyang ports have a comparative disadvantage. For the growth into hub port in North-East Asia, it is necessary that Busan and Kwangyang ports improve their weakness. Besides It is necessary to develope ports and hinterland quickly, offer uniformity of foreign investment laws and incentive systems.

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A Study on the Development Strategy of Masan Port at Northeast Era (동북아시대의 마산항 발전전략에 관한 연구)

  • 강용수
    • Journal of Korea Port Economic Association
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    • v.19 no.2
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    • pp.203-219
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    • 2003
  • The world Economy has rearranged into three economic block. Especially, the nation's economy in Northeast area are an engine of world economic development. Among these nations in Northeast area china has done a main role of the development of world economy. Owing to raising of the China economy, the Export-Import of container load has rapidly increased in this area. So it is very important of the nation to manage a port. Therefore, the purpose of this paper is to analysis a port of Masan and to search the way of development. To accomplish this purpose, I will analyze a logistics circumstance in northeast area and a port of Pusan and Jinhae. In conclusion, government and local government must enlarge the investment to develope the port of Masan. Local government should do its best effort to solve the problem of port of Masan. And all citizen should recognize that a development of the port of Masan will be the engine of the raising of Masan.

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A Study on the Surface Soil Stabilization on Marine Clay by the Hardening Agent (고화재에 의한 해성점성토의 표층안정처리에 관한 연구)

  • 천병식;양진석
    • Journal of Ocean Engineering and Technology
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    • v.15 no.1
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    • pp.92-97
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    • 2001
  • Hardening agents have been the traditional material for surface soil stabilization of soft ground. This study aims at determining the optimal mixture ratio of the hardening agent in accordance with the required design specifications. Hardening agents which consists of fly ash, gypsum, slag and cement for the ettringite hydrates is effective for early stabilization of unconsolidated soil. The raw ground material is the clay that is widely found in Korea. In this study, preliminary tests were performed to get an optimal mixture ratio of the stabilizer ingredient and marine clay from Jinhae was used to get physical and chemical properties. Laboratory tests of 50 stabilized soils were performed to get an optimal mixture ratio for 16-stabilizer materials of 6 types, and a mixture ratio of the stabilizer ingredient and marine clay was determined.

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A Case Study for the House Planning of Americans Living in Korea (재한 미국인의 주택계획을 위한 사례조사)

  • 장상옥;신경주
    • Korean Institute of Interior Design Journal
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    • no.39
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    • pp.72-82
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    • 2003
  • The purpose of this study was to examine the residential culture of Westerners who reside in Korea. For this study, qualitative case study methods were used. Case study data were collected from 10 households through depth-interviews and observations. Houses were sampled purposively to represent the middle-class American home in Jinhae and Jinju of Korea. This result would be helpful to create useful database for designing and remodeling future desirable housing plan for Westerners in Korea. Furthermore, this would be useful to develop checklist items for Korean immigrant's housing plan who reside in Western country.