The education effect of environmental impact cognitive instruction on high school students was investigated. Environmental values of students could be classified into egocentric, social-altruistic and biospheric values like those of Schultz's three kinds of categories. The value distribution of students consists 44.7% of egocentric and biospheric value groups and 12.5% of social-altruistic value group, respectively. The environmental function such as knowledge and skill did not show remarkable differences between value groups. The environmental value only affected the attitude function. The biospheric value group had the higher attitude function than other value groups. The environmental impact cognitive instruction enhanced the environmental functions irrespective of the value group or instruction type. However, significant variables were different according to environmental functions. Environmental functions such as knowledge and skill were influenced by the instruction itself. The attitude function was dependent on instruction itself, value type and instruction type. The optimum application of the environmental impact cognitive instruction can be efficiently achieved through class division into egocentric value group and biospheric value group. Alternatively, the proper combination of instruction methods focused biospheric and egocentric impacts in a class can be recommended.

본 연구는 기후변화가 유역의 유출량과 수자원에 미치는 영향을 조사하고 평가하는데 목적이 있다. 이를 위하여 먼저, YONU GCM의 제한실험과 점증실험을 실시하여 전구적 규모의 기후변화 시나리오를 작성하였으며, 통계학적 축소기법과 추계학적 일기발생기법을 이용하여 대상지점의 일 수문기상 시계열을 모의하였다. 이렇게 얻은 시계열자료를 2CO2 상황에서의 유출량자료로 변환하기 위해 준 분포형 강우-유출 모형인 SLURP 모형에 입력하였다. 본 연구에서는 이

The objectives of the study are to improve techniques for social impact assessment and to suggest their measuring methods to apply in small scale rural development projects. Population, residence, industries, and traffic volumes were selected to measure the social and economic impact assessment of Seongeup agricultural water development project in Jeju Province. Existing data gathering methods were used to estimate the changes of population and traffic volumes. Interview schedule for villagers was applied to estimate the residents' satisfaction to living environments. Interview schedule for experts was applied to estimate agricultural productivity and land price. The results of social and economic impact assessment show that there will be considerable changes in living environments, agricultural productivity, and land price. On the contrary, the project will make little impacts on the changes of population, em-ployment, and traffic volumes.

본 연구는 안성천의 평택수위관측소 상류유역을 대상으로 점진적인 도시화로 인한 토지피복변화가 수문변화에 미치는 영향을 분석하고자 하였다. 이를 위해 WMS HEC-1모형을 사용하였고, 격자크기 200200m DEM과 1:50,000토양도로부터의 수문학적 토양군을 이용하였다. 1986, 1990, 1994, 1999년 Landsat TM 영상을 최우도법에 의해 피복분류를 실시한 결과, 이 기간동안 유역내에 산림과 논은 지속적으로 감소하여 왔고, 도시/주거지

본 연구에서는 항만하역장비인 스프레더용 충격흡수기의 개발을 위해 스프링과 오일댐퍼로 구성된 세 가지 형태의 모델에 대한 동적응답을 유한요소해석에 의해 수행하였다. 또한, 세 가지 모델의 충격흡수기에서 피스톤의 제한된 행정을 정적변수로 하고 목적함수인 충격에 대한 반력이 최소가 되도록 최적설계를 수행하였다. 본 연구의 결과로는 직렬식 2자유도계 모델의 반력이 가장 작게 나타났으며 그 다음으로는 1자유도계 모델, 병렬식 2자유도계 모델의 순으로 나타났다. 스프링상수와 감쇠계수의 변화가 반력에 미치는 영향을 확인하였으며, 최적설계 결과 각 모델에 대한 반력이 최소가 되는 스프링상수와 감쇠계수를 구하였다.

Environmental protection and precaution are the most frequently considered issues in the recent research fields for our present and future surroundings. However, it seems that these environmental issues were less reflected in local-level development plans, and caused several cases of environmental pollution, therefore it became a major concern of local governments and the communities. The role of a 'Local EIA(Environment Impact Assessment)' can be a core issue for the positive preferences of the local-level development plans. Cases of Local EIA in Germany which have been implied successfully are reviewed to generate a local EIA movement and to produce a guideline for Korean local governments. The local EIA in Germany was broadly commenced in the middle of 1980s, and a decade later it was carried out for over 200 of local governments. To produce a better suggestion for Korean local EIA, comparison and analysis of detail data of the German local EIA was carried out, and tested for fourteen cities in Korea based on five categories: i) assessment subject, ii) assessment procedure, iii) main office for assessment, iv) assessment factor and v) assessment standard. Prior suggestions for greater preference of local EIA in Korea are: it is necessary that I) launch of a support system in central government to help the movement of local government; II) a knowledge-based expert group in local government which has by all means of exclusive responsibility for any action(new application or performance of local EIA) ; III) establishment of 'environmental protection measure' in local government level for environmental precaution based on individual environmental character and values in their communities.

컨테이너 크레인 스프레더는 체결시 발생하는 충격으로 인해 많은 고장이 발생한다. 이러한 충격력을 줄이기 위해 2자유도계 유압충격흡수장치를 설계하여 실린더 벽면의 치수변화가 감쇠계수에 미치는 영향에 대해 연구하였다. 내부압력이 작용할 때 벽면 치수를 2～3Omm로 변화시켜 이때 발생하는 실린더 벽면과 피스톤 사이의 틈새는 측정한 결과 Sun이하의 치수에는 벽면형상 굴곡 되며 l0mm이상의 치수에서 감쇠계수에 영향을 미치지 않는 것을 알 수 있다.

최근 세계 각지에서는 엘리뇨 및 라니냐에 의한 기상변동에 의하여 막대한 인적, 경제적인 직간접적인 피해를 경험하여 왔다. 우리 나라의 기상에도 엘리뇨/라니냐의 영향이 시공간적으로 유의함이 최근 밝혀지고 있으며, 그에 따르는 엘리뇨/라니냐에 의한 영향의 정량적인 고려가 전국적인 수자원 장기 정책 및 관리에 필요함이 인식되어 왔다. 기상 이변 형상은 이미 실존의 현실이며, 이 중 엘리뇨/라니냐의 영향 또한 그러하다고 할 수 있다. 특히, 21세기는 물부족

In order to understand the impact for decomposition of blue-green algae Microcystis on water quality, the algae were cultivated with collection of natural population during approximately one month, when water-bloom of Microcystis dominated at August 31, 1999 in the lower part of the Okchon Stream. The enrichment of inorganic N·P nutrients didn't in algal assay and the effect of Microcystis on water quality was assessed from the variation of nutrients by algal senescence. Microcystis population seemed to play a temporary role of sink for nutrients in the water body. Initial algal density of Microcystis was 2.3×106 cells/ml. When Microcystis population died out under light condition, algal N·P nutrients between 9∼12 days affected to increase of biomass after reuse by other algal growth as soon as release to the ambient water. However, cellular nutrients under dark condition were almost moved into the water during algal cultivation. NH4, NO3 and SRP concentration were highly increased with 160, 17 and 79 folds, respectively relatve to the early. As a result, the senescence of Microcystis population seemed to be an important biological factor in which cause more eutrophy and increase of explosive algal development by a lot of nutrients transfer to water body. There are significantly observed an effort of reduce for production of inner organic matters such a phytoplankton as well as load pollutants from watershed in side of the water quality management of reservoir.

Mokpo coastal area is connected to the adjacent a long river and two large basins. It is essential for port planning coastal zone management and environmental impact study to analyze the data related to the ship operation and variation of current and water quality due to the development of water area including dredging reclamation and estuary barrage. The Yongsan river estuary weir and Yongam-Kumho basins discharge much of water through water gates for the purpose of flood control and prohibit salt intrusion at the inland fresh water area. To meet this purpose discharge through the gates have been done at the period of maximum water level difference between inner river and sea level. This discharged water may cause the changes of current pattern and other environmental influences in the vicinity and inner area of semi-closed Mokpo harbor. In this study ADI method is applied to the governing equation for the analysis of the changes on current pattern due to discharged water. As the results of this study it is known that the discharging operation causes many changes including the increase of current velocity at the front water area at piers approaching passage and anchorages. Discussion made on the point of problems such as restricted maneuverability and the safety of morred vessels at pier and anchorage. To minimize this influence the linked gate operation discharging warning system and laternative mooring system are recommended.

토양수분은 기후, 토양 및 지표면의 조건 등에 의해 영향을 받는다. 특히, 급격한 도시화 및 산업화의 영향으로 다른 영향인 자들 보다 지표면 조건의 변화가 크게 바뀌고 있다고 할 수 있으며 본 연구에서는 이러한 지표면 조건의 변화가 토양수분에 어떻게 영향을 미칠 수 있는지를 간단한 토양수분 동역학 모형을 이용하여 평가해 보았다. 먼저, 본 논문에서는 토양수분의 시간적 공간적 통계특성을 정량화 해보기 위해 논문의 전반부를 Washita ’92 자료 및 M

Environmental problems emerged as common global problems awaiting solution. Active collaborative efforts are required of nations and communities in order to solve environmental problems effectively. International collaboration occurs much more commonly these days than before, and European Community(EC) mumber countries are no exceptions. EC has established and executed the five-year programs on Environmental Policy Implementation, which explicated basic principles for environmental policy development, since 1973. EC programs tend to emphasize that the direction of the policies should reflect a change from a remedial approach to a preventive approach. Those programs have brought an awareness of the importance of Environmental Impact Assessment(EIA) to EC member countries. France installed an EIA system in 1976, which was the first among member countries. Several other member countries also established a system. EC decided that a common guideline was necessary, and therefore formulated the "European Community Guideline for Environmental Impact Assessment" in 1985. All member countries were required to legislate an EIA system within three years, according to the Guideline. This study will conduct a comparative analysis of the current EIA systems of different EC member countries. The findings of this study will provide helpful information on how to improve the efficacy of the Korean system.