It is analysised the causes and extent of damage of natural disasters through the investigating of natural disaster states occurred in Gyeongsangnam-do. The data for this study were based on disaster annual report between 1987 and 2003. Especially, the data between 1993 and 2003 were used for the analysis in Gyeongsangnam-do area. A typhoon and a heavy rain were the major causes of the natural disasters in Gyeongsangnam-do. For all that the extent of damage by a heavy rain was twice as much as that of a typhoon, Gyongsangnam-do suffered heavy damage from a typhoon. So, special attentions should be paid to establish prevention plans for that in this area. Also, half of the natural disasters were occurred between July and August, the intensive prevention plans for the summer season are needed.

장기적 과훈련은 경기력 저하는 물론 심리적으로도 부정적인 결과를 초래한다고 많은 연구들은 지적하고 있다. 이에 본 연구에서는 단기적 과훈련에 따른 고등학교 축구선수들의 기분 변화를 조사하여 코치나 감독에게 선수지도에 유용한 정보를 제공하기 위함이다. 이 실험에 참가한 피험자는 25명이 고등학교 축구선수로 평균 운동경력은 3년9개월이었다. 피험자들은 1시간 30분, 3 시간, 그리고 4 시간 30분 조건에서 훈련 전후 측정되어졌다. 각 조건에서 훈련 시 발생했을 피로를 회복시키기 위해 조건간 측정 간격을 48시간으로 하였다. 기분 변화를 측정하기 위해 McAuley와 Courneya(1994)가 만든 주관적 운동 경험 척도(Subjective Exercise Experiences Scale : SEES)를 사용했다. SEES는 (1) 긍정적 행복감(positive well-being), (2) 심리적 부정스트레스(psychological distress), (3) 피로(fatigue) 등 3가지 영역에 12가지 항목을 기초로 하여 만들어 졌다. 본 연구결과 평상시(3시간)보다 훈련 양을 증가시켜 훈련을 시켰을 때 선수들의 심리적 부정 스트레스와 피로가 증가되었고 긍정적인 행복감은 감소되는 것으로 나타났다.

본 논문은 미국내의 다른 터미널 운용구조를 고찰하고, 크레인 사용을 위해서 가장 효과적인 터미널 관리장치유형(ACC, CUP, PTU)을 찾조자 시도하여 연구한 결과이다. 터미널 비교에 사용된 효율을 산정하기 위해서 시간당 순총 크레인 움직임을 사용했다. 가장 효과적인 장치를 찾기 위해서 총 31개 터미널을 비교하여 시도했다. 이 이론에서는 PTU 시설이 가장 효과적인운영장치임을 알게 되었으며, 보기로 든 터널이 너무 적어서 미국내 터미널에 이 결과를 직접적으로 적용하기에는 어려움이 있다.

Chlorinated water in swimming pools contains chloroform at elevated levels compared to chlorinated drinking water. Chloroform levels in four indoor swimming pools(swimming pools A, B and C in a city of Korea and swimming pool D in a city of New Jersey in the United States) were examined. The chloroform levels in the water of swimming pool C (city-managed) were shown to be significantly(p=0.0001) different from those of private swimming pools A and B: the mean chloroform levels in the pools A, B, and C are 22.8, 17.8, and 31.1 ㎍/ℓ respectively. Furthermore, all of these chloroform levels are significantly(p=0.0001) different from those of New Jersey: chloroform concentration of the Korean pools ranged from 10.9 ㎍/ℓ to 47.9 ㎍/ℓ with a mean of 23.2 ㎍/ℓ, while it ranged from 27 ㎍/ℓ to 96 ㎍/ℓ with a mean of 64.4 ㎍/ℓ in the New Jersey pool. The disinfection processes would cause part of this difference since the swimming pools in Korea applied both chlorination and ozonation method, while the swimming pool in New Jersey used chlorination method only. It was implied that swimming parameters inconsistently vary, resulting in fluctuation of and no constant accumulation of chloroform in the water with the change of time for the day. A regression analysis showed no relationships between sampling time and chloroform concentrations for the sampling day in the swimming pools of Korea. A F-test indicated no significant difference of chloroform concentrations in the morning and afternoon samples collected in the swimming pools. Ingestion dose was estimated to be 0.58 ㎍ from an hour swimming in a city of Korea, taking into accounting an average of 23.2 ㎍/ℓ in swimming pools in the city. In extreme situation, the ingestion dose was estimated to he 12.0 ㎍ from an hour swimming in a city of Korea.