• 생명과학회지
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• 제18권8호
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• pp.1115-1122
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• 2008

경남 양산시 Y여중학교 1,2학년 24명을 대상으로 중량부하 음악줄넘기 운동군 8명, 음악줄넘기 운동군 8명, 대조군 8명으로 분류하여 운동전 후 혈액성분과 성장호르몬의 변화를 비교한 결과 다음과 같은 결론을 얻었다. 중량부하 음악줄기 운동과 혈중지질의 집단별 비교에서 중량부하 음악줄넘기 운동군은 WBC, RBC, 글루코스, T-C, TG, HDL-C, LDL-C 등에서 증감을 보여 유의성이 있었고(p<0.05), 음악줄넘기 운동군은 RBC, T-C, TG, HDL-C, LDL-C 등에서 증감을 보여 유의성이 있었으며(p<0.05), 대조군은 유의성이 없는 것으로 나타났다. 중량부하 음악줄넘기 운동군과 성장호르몬의 집단별 비교에서 중량부하 음악줄넘기 운동군은 성장호르몬이 증가하여 유의성이 있었고(p<0.05), 음악줄넘기 운동군도 성장호르몬이 증가하여 유의성이 있었으며(p<0.05), 대조군은 유의성이 없는 것으로 나타났다. 본 연구의 결과를 통해 중량부하 음악줄넘기 운동이 혈액성분과 성장호르몬의 변화에 효과를 미치는 것으로 나타났다. 그러나 본연구의 실험대상자수가 적었고, 12주라는 실험기간이 짧았기 때문에 이를 일반화하여 해석하는 것은 주의가 필요할 것으로 생각되지만, 중량부하 음악줄넘기 운동이 자라나는 청소년들의 운동처방과 운동프로그램 작성에 참고자료로 활용 가능하리라 사려 된다. 또한 성장기 때의 중량부하 음악줄넘기 운동의 중요성을 인식시키고 학교의 체육수업 현장에서 활용될 수 있는 체계적인 교육이 따라야 할 것이다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권8호
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• pp.1090-1094
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• 2015

The aim of the study was to select traits that may constitute a prospective criterion for breeding value prediction of young horses. The results of 1,232 starts of 894 four-, five-, six-, and seven-year-old horses, obtained during jumping championships for young horses which had not been evaluated in, alternative to championships, training centres were analyed. Nine traits were chosen of those recorded: ranking in the championship, elimination (y/n), conformation, rating of style on day one, two, and three, and penalty points on day one, two, and three of a championship. (Co)variance components were estimated via the Gibbs sampling procedure and adequate (co)variance component ratios were calculated. Statistical classifications were trait dependent but all fitted random additive genetic and permanent environment effects. It was found that such characteristics as penalty points and jumping style are potential indicators of jumping ability, and the genetic variability of the traits was within the range of 14% to 27%. Given the low genetic correlations between the conformation and other results achieved on the parkour, the relevance of assessment of conformation in four-years-old horses has been questioned.

• 대한수학회지
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• 제37권6호
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• pp.943-956
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• 2000

We investigate a relation between multiplicity of solutions and source terms of jumping problem in wave equation when the nonlinearity crosses an eigenvalue and the source term is generated by finite eigenfunctions. We also show that the jumping problem has infinitely many solutions when the source term is positive multiple of the positve eigenfunction.

• Korean Journal of Mathematics
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• 제16권4호
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• pp.545-551
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• 2008

We investigate the multiple solutions for a parabolic boundary value problem with jumping nonlinearity crossing no eigenvalues. We show the existence of the unique solution of the parabolic problem with Dirichlet boundary condition and periodic condition when jumping nonlinearity does not cross eigenvalues of the Laplace operator $-{\Delta}$. We prove this result by investigating the Lipschitz constant of the inverse compact operator of $D_t-{\Delta}$ and applying the contraction mapping principle.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회B
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• pp.2501-2504
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• 2008

We found that a droplet placed on a superhydrophobic surface jumps upward when we controlled the electrical wetting tension appropriately by applying AC voltage. We investigated how the surface deformation and jumping phenomenon of a droplet are affected by applied frequency under constant voltage. We found that a droplet jumps up continuously at a resonance frequency.

• 한국소음진동공학회논문집
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• 제15권5호
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• pp.542-549
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• 2005

Impact sounds, such as those created by footsteps, the dropping of an object or the moving of furniture, can be a source of great annoyance In residential buildings. Running and jumping impact sound by child are one of the most irritating noises in an apartment buildings. It's necessary to know that the impact power characteristics of real impact source in an apartment buildings. This study aims to Investigate the impact power characteristics and impact power time of running and jumping by child. This study carried out investigation through the 159 children in school. The results of this study is that jumping impact power is greater than running impact power.

• Journal of Communications and Networks
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• 제6권1호
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• pp.78-87
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• 2004

This paper presents deterministic, worst-case analysis of a queueing system whose multiple homogeneous input streams are regulated by the associated leaky buckets and the queueing system that has a single stream regulated by the jumping-window. Queueing delay averaged over all items is used for performance measure, and the worst-case input traffic and the worst-case performance are identified for both queueing systems. For the former queueing system, the analysis explores different phase relations among leaky-bucket token generations. This paper observes how the phase differences among the leaky buckets affect the worst-case queueing performance. Then, this paper relates the worst-case performance of the former queueing system with that of the latter (the single stream case, as in the aggregate streams from many users, whose item arrivals are regulated by one jumping-window). It is shown that the worst-case performance of the latter is identical to that of the former in which all leaky buckets have the same phase and have particular leaky bucket parameters.

• Korean Journal of Mathematics
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• 제26권4호
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• pp.683-700
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• 2018

We get one theorem which shows existence of solutions for one-dimensional jumping problem involving p-Laplacian and Dirichlet boundary condition. This theorem is that there exists at least one solution when nonlinearities crossing finite number of eigenvalues, exactly one solutions and no solution depending on the source term. We obtain these results by the eigenvalues and the corresponding normalized eigenfunctions of the p-Laplacian eigenvalue problem when 1 < p < ${\infty}$, variational reduction method and Leray-Schauder degree theory when $2{\leq}$ p < ${\infty}$.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2007년도 추계학술대회 논문집
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• pp.65-66
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• 2007

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 춘계학술대회 논문집
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• pp.305-306
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• 2010