• 한국운동역학회지
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• 제24권1호
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• pp.19-26
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• 2014

This study investigated foot pressure patterns between experienced skiers and intermediate skiers during alpine skiing. Five experienced skiers and five intermediate skiers participated in this study. Foot pressure measurement system was used to measure vertical ground reaction force (vGRF) and contact area under the six plantar regions. Each participant was asked to perform basic parallel turns and carved turns on a $18^{\circ}$ groomed slope. Each right turn was divided into the initiation phase, the steering phase 1 and 2. For the initiation phase of the basic parallel turns, significantly greater contact area was found on the LRF and RRF of the intermediate skiers (p<.05) and significantly greater vGRF was found on the LRF of the intermediate skiers (p<.05). Also significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at the steering phase 1 (p<.05) and on the LRF of the intermediate skiers at the steering phase 2 (p<.05). For the carved turns, significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at all three phase (p<.05). On the other hand, significantly greater vGRF was found on the RFF of the experienced skiers at the steering phase 1 (p<.05). Also significantly greater vGRF and contact area were found on the RMF of the experienced skiers at the steering phase 2 (p<.05). In order to increase performance, we suggest that the intermediate skiers should be unweighted at the initiation phase and shift the body weight to the forefoot of the outer foot at the steering phase 1. Also, the outer ski should be loaded more than the both skis at the steering phase 1 and 2.

• 한국학교수학회논문집
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• 제10권1호
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• pp.71-89
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• 2007

본 연구는 피드백 집단(과제 평가 결과에 따른 교정 피드백 집단 I, 단계 분기의 피드백학습 집단 II)과 일반학습 집단(집단 III)간의 수학 성취도와 수학에 대한 태도의 변화를 조사하였다. 수학 성취도에서, 피드백 집단(집단 I, 집단 II)은 일반학습 집단(집단 III)보다 향상을 보였으나(p<.05), 집단 I과 집단 II간에는 유의한 차이가 없었다 (p>.05). 그리고 하 수준에서 피드백 집단(집단 I, 집단 II)과 일반학습 집단(집단 III)간에는 유의한 차이가 있었지만(p<.05), 상 수준에서 피드백 집단(집단 I, 집단 II)과 일반학습 집단(집단 III)간에는 유의한 차이가 없었다(p>.05). 수학에 대한 태도에서, 피드백학습 집단(집단 I, 집단 II)은 일반학습 집단(집단 III)보다 향상을 보였으나(p<.05), 집단 I과 집단 II간에는 유의한 차이가 없었다(p>.05). 수학 성취수준(상 하위수준)에 따라서는, 집단 I과 집단 II간에는 유의한 차이가 없었지만(p>.05), 피드백 집단(집단 I, 집단 II)과 일반학습 집단(집단 III)간에는 유의한 차이가 있었다(p<.05).

• 대한수학회지
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• 제44권5호
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• pp.1051-1063
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• 2007

The aim of this note is to advertise a method which turns out to be powerful enough to be used successfully in problems which are apparently unrelated. It is based on a modification of a construction that we first introduced in [2].

• 전기의세계
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• 제28권8호
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• pp.34-44
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• 1979

The article is organized as follows: In Section 2, the functions involved in the total design process are discussed in terms of five phases and the term IGCAD (interactive graphic computer aided design) is introduced. Section 3 is devoted to the discussion of the IGCAD system and turns out to be the longest section. We discuss two particular examples of IGCAD applications and the benefits of IGCAD methodology in Section 4.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제13권2호
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• pp.137-149
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• 2006

We introduce the notion of the generalized covariance and variance for bounded linear operators on Hilbert space, and prove that the generalized covariance-variance inequality holds. It turns out that the inequality is a useful formula in tile study of inequality involving linear operators in Hilbert spaces.

• Journal of the Korean Statistical Society
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• 제30권1호
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• pp.77-87
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• 2001

Some asymptotic results on the local likelihood density estimator of Copas(1995) are derived when the locally parametric model has several parameters. It turns out that it has the same asymptotic mean squared error as that of Hjort and Jones(1996).

• 대한수학회보
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• 제35권4호
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• pp.837-845
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• 1998

In this work, we consider Euler approxiamtion for one-dimensional jump-diffusion processes under Yamada-Watanabe type conditions on the coefficients which turns out to converge to the strong solution in uniform $L^1$-sense.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 19-21 Oct. 1992
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• pp.25-30
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• 1992

In this paper, the problem of trajectory generation for mobile robots is investigated. The robot trajectory is generated so that smooth turns are guaranteed. Also the kinematic constraints of the actual robot are considered and incorporated in the trajectory generation.

• 한국통계학회:학술대회논문집
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• 한국통계학회 2001년도 추계학술발표회 논문집
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• pp.75-76
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• 2001

An endpoint detection method for speech signals utilizing hidden Markov model(HMM) is proposed. It turns out that the proposed algorithm is quite satisfactory to apply isolated word speech recognition.

• Journal of the Korean Statistical Society
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• 제34권1호
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• pp.35-38
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• 2005

A single, tractable, special case of the problem of continuous mixtures of beta distributions over their parameters is considered. This is the uniform mixture of generalized arc-sine distributions which, curiously, turns out to be linked by transformation to the Cauchy distribution.