Mahoney et al.(1979, 1984, 1987)은 운동수행에 영향을 미치는 인지심리적 기술요인들(불안제어력, 자신감, 집중력, 동기, 정신적준비, 목표설정)을 이론과 실제 연구를 통하여 구체화하였다. 이에 따라 본 연구는 스포츠 심리검사지(PSIS)을 사용하여 사격, 양궁, 핸드볼, 농구 종목에서 선정된 최우수/우수 남녀 선수 283명의 인지 심리적 기술요인들을 측정하고 일련의 통계분석을 시행하였다. 수준×종목×성별 다원 변량분석(MANOVA) 및 단일 변량분석(ANOVA) 결과 전반적으로 의의있는 주효과와 상호작용 효과를 보이고 있었다. 좀 더 구체적으로, 정신적 준비 요인을 제외한 모든 요인에서 최우수 선수들이 우수선수들 보다 전반적으로 효율적인 인지심리적 기술특성을 지니고 있었으며, 남성들이 여성들 보다 동기와 자신감 요인에서 높은 수준을 나타냈다. 또한 양궁, 사격, 농구종목에서 최우수선수들이 우수선수들 보다 높은 불안제어력을 보였으며, 여자 농구 최우수선수들이 남자 핸드볼과 남자 농구 최우수선수들을 제외한 다른 모든 집단보다 더 팀 목표를 강조하는 경향을 나타냈다. 이러한 결과들을 선행연구들과 실제 상황을 바탕으로 구체적인 논의를 하였다.

This paper aims at creating the measurement of athletes` stress. About 340 athletes attending high schools or universities were selected as the subjects for the purpose of this study, but 316 of them were the real subjects for the ultimately operated data on the factors causing stress. Questionaires adapted from Competitive State Anxiety Inventory(CSAI) designed by Martens, Burton, Rivkin and Siman were used to put Competitive Anxiety Factor to the test ; questionaires included in Sports Cohesion Instrument (SCI) developed by Yukelson, Weinberg and Jackson were used to test Team Cohesion Factor ; questionaires presented in A Study on the Measurement of Job Stress (I) by Lee Jong-mok and Park.Han-ki were modified to be suitable for athletes and used to test communication factor and family factor. 54 questions were selected out of preliminary questionaires for testing the above -mentioned factors, and principal component factor was analyzed by means of Pearson correlation coefficient matrix on the basis of the responses to 54 questions. As a result, 12 factors and variable quantities that they could take turned out to be 60.20% . 47 questions, which had more than .30 as each factor loading in 12 factors, were selected out of 54. questions as a resultof Uarimax Rotated Factor Analysis of these 12 factors. The selected 12 factors game, counsel, sports-external disturbance, team cohesion, athletic sports, communication, training, spectators. We suggest that athletes undergo stress while they are under situations-competitive or ordinary-concerned with these 12 factors.

When a ship is sailing on the sea, she has the six-degrees of freedom of motion. It means that she meets a lot of dangerous situations. Especially, when the VLCC is travelling in irregular sea, the slamming, the deck-wetness and the propeller racing are occured with the sea state she is on. These are the representative steps that a heave-to and a scudding are used for a ship building , but for a predominance in both. The author intends to clarify this problem theoretically. The methods of statistical calculation are based with the ITTC spectral formulation and with the assumption that the wave height histogram follows the Rayleigh distribution. In this study, the author gives an attention on the relative bow motion to a wave in the irregular sea. It is verified that the relative diplacement at the bow to sea level in the following sea is less than that in the head sea. It is confirmed that, therefore, one have to sail with scudding when he is threatened to heave-to at a rough sea. But he must bear the propeller racing in mind in the cases.

The advanced researches of the ship's motion in the seaway can predict the heaving, pitching and slamming of ship's motion. The researches as of today are that of displacement type such as a small typical fishing boat and U, UV and V bow ship forms under low speed. In recent day, the study of behaviours of high speed planning boat in the regular waves has been carried out by Bessho [5]. The calculation about behaviours of a high speed vessel in the longitudinal regular waves is calculated by Ordinary Strip Method in this paper. The data of the results were discussed and compared with Bessho's results. The conclusions deduced from this study are as follow, (1) The acceleration of motion calculated by the O.S.M. is similar with Bessho's data for the Fn 0.5 (2) The amplitudes of the behaviours of motions take peak at 1.0<λ/L<1.4.

The advanced researches of the ship's motion in the seaway can predict the heaving, pitching and slamming of ship's motion. The researches as of today are that of displacement type such as a small typical fishing boat and U, UV and V bow ship forms under low speed. In recent day, the study of behaviours of high speed planning boat in the regular waves has been carried out by Bessho [5]. The calculation about behaviours of a high speed vessel in the longitudinal regular waves is calculated by Ordinary Strip Method in this paper. The data of the results were discussed and compared with Bessho's results. The conclusions deduced from this study are as follow, (1) The acceleration of motion calculated by the O.S.M. is similar with Bessho's data for the Fn 0.5 (2) The amplitudes of the behaviours of motions take peak at 1.0<λ/L<1.4.