• 한국자원식물학회지
• /
• 제28권3호
• /
• pp.329-332
• /
• 2015

The effect of storage temperature and the storage period of hardy kiwifruits on the fruit firmness, soluble solids and fruit weight were studied in this work. The investigation was carried out on the Sae-Han cultivar of Actinidia arguta. It has an edible smooth skin and contains high amounts of sugar and vitamin C (ascorbic acid). In this research, the measurement of fruit firmness, soluble solids, and fruit weight were carried out at various temperatures (5, 10, 15, and 20℃) during 14 days. Fruit firmness rapidly decreased and soluble solids content increased at 15 and 20℃. We also investigated the correlation between fruit firmness and soluble solids content. There was a strong correlation between fruit firmness and soluble solids content. That means that fruit firmness affect the soluble solids content of hardy kiwifruit.

• Journal of applied mathematics & informatics
• /
• 제28권5_6호
• /
• pp.1143-1156
• /
• 2010

In this paper, we study the following p&q-Laplacian problem with critical Sobolev and Hardy exponents {$-{\Delta}_pu-{\Delta}_qu={\mu}\frac{{\mid}u{\mid}^{p^*(s)-2}u}{{\mid}x{\mid}^s}+{\lambda}f(x,\;u)$, in $\Omega$, u=0, on $\Omega$, where ${\Omega}\;{\subset}\;\mathbb{R}^{\mathbb{N}}$ is a bounded domain and ${\Delta}_ru=div({\mid}{\nabla}u{\mid}^{r-2}{\nabla}u)$ is the r-Laplacian of u. By using the variational method and concentration-compactness principle, we obtain the existence of infinitely many small solutions for above problem which are the complement of previously known results.

• 대한수학회지
• /
• 제58권4호
• /
• pp.799-817
• /
• 2021

In this paper, we investigate the normal and complex symmetric weighted composition operators W_𝜓,𝜑 on the Hardy space H²(𝔻). Firstly, we give the explicit conditions of weighted composition operators to be normal and complex symmetric with respect to conjugations 𝒞₁ and 𝒞₂ on H²(𝔻), respectively. Moreover, we particularly investigate the weighted composition operators W_𝜓,𝜑 on H²(𝔻) which are normal and complex symmetric with respect to conjugations 𝓙, 𝒞₁ and 𝒞₂, respectively, when 𝜑 has an interior fixed point, 𝜑 is of hyperbolic type or parabolic type.

• 영미문화
• /
• 제9권1호
• /
• pp.71-90
• /
• 2009

David Harris argues that mass media suppress counter-hegemonic factors in order to reach audience. According to Harris's theory, the success of the film "Tess" depends on its effective adaptation from Thomas Hardy's novel Tess of the D'Urbervilles (1891). Tess (1979), directed by Roman Polansky, casting Nastassia Kinski for Tess, was acclaimed as a professional and commercial success, awarded with various prizes. Hardy's aim at criticizing Victorian English social and moral standard through Tess appears obscure in Polansky's film which focuses on the aesthetics of human body and capital. Polanski's Tess with urban white beauty does not emerge victimized by poverty, which the late twentieth century audience under the capitalist umbrella may abhor. To examine his use of music, sound effect, visual images by means of camera operation—angles, distances, close-ups and frequent movements—light and color, and mythic elements in the film, show Polansky's sharp perception of his contemporary audience's desire and conscientious work upon it.

• 영미문화
• /
• 제18권4호
• /
• pp.189-213
• /
• 2018

This paper aims to show how Thomas Hardy overturns conventional ideas in opposition and eventually disrupts the hierarchical order of ideas in the Victorian society of Tess of the D'Urbervilles. Divided into four sections, such as feeling/reason, purity/impurity, femininity/masculinity, and death/life, it examines how these binaries are deconstructed in the heroine's tragic life journey. The heroine Tess of the book, who boldly crosses the boundaries marked by traditional society, turns her image as a fallen woman into that of divinity, erasing the boundary between evil and good. In doing so, Hardy leads the reader to question the system of established values and reveals the illegitimacy of absolute values, thence stressing what all one can grasp in this world is nothing else than an absence of a central value. The relativity of truth and the power of overturning established value systems advertised in the book have significant implications for today's readers as well as for the Victorians.

• 대한수학회지
• /
• 제60권5호
• /
• pp.1057-1072
• /
• 2023

Let 𝜑 : ℝⁿ × [0, ∞) → [0, ∞) be a growth function and H^𝜑(ℝⁿ) the Musielak-Orlicz Hardy space defined via the non-tangential grand maximal function. A general summability method, the so-called 𝜃-summability is considered for multi-dimensional Fourier transforms in H^𝜑(ℝⁿ). Precisely, with some assumptions on 𝜃, the authors first prove that the maximal operator of the 𝜃-means is bounded from H^𝜑(ℝⁿ) to L^𝜑(ℝⁿ). As consequences, some norm and almost everywhere convergence results of the 𝜃-means, which generalizes the well-known Lebesgue's theorem, are then obtained. Finally, the corresponding conclusions of some specific summability methods, such as Bochner-Riesz, Weierstrass and Picard-Bessel summations, are also presented.

• Nonlinear Functional Analysis and Applications
• /
• 제28권4호
• /
• pp.1035-1049
• /
• 2023

Approximation of functions of Lipschitz and Zygmund classes have been considered by various researchers under different summability means. In the proposed study, we investigated an estimation of the order of convergence of a function associated with Hardy-Littlewood series in the weighted Zygmund class W(Z^(𝜔)_r)-class by applying Euler-Hausdorff summability means and subsequently established some (presumably new) results. Moreover, the results obtained here represent the generalization of several known results.

• 한국터널지하공간학회 논문집
• /
• 제18권3호
• /
• pp.291-303
• /
• 2016

최근 도시부 지하도로 건설에 따른 터널내 다양한 형태의 분기부가 설계되고 있으며, 이는 기존의 일자형 터널에서의 환기해석 방법과는 다른 해석방법을 요구하고 있다. 그러나 국내외 터널환기 해석방법중 네트워크형 터널에 대한 환기해석에 대한 방법은 설계기준으로 제시되지 않고 있으며, 주로 네트워크용 수치해석 프로그램에 의존하여 설계가 진행되고 있다. 본 연구에서는 수치해석적 방법이 아닌 특성화 방정식에 기초한 네트워크형 터널에 대한 환기해석 방법 중 설계기준으로 적합한 네트워크 모형을 고찰하였다. 기존의 Hardy-Cross 방법은 계산방법이 비교적 간단하고 수계산이 가능한 장점이 있어, 광산통기 및 터널환기 분야에서 폭넓게 적용되어 왔다. 그러나 Tayler 정리에 따른 절단오차 문제 및 대규모 네트워크 환경에서 mesh의 선택 알고리즘에 따른 수렴성 문제가 보고되고 있다. 따라서 본 연구에서는 비 hardy-cross 방법 중 mesh의 구성이 없이도 유량과 압력을 동시에 해석할 수 있는 gradient method로 네트워크형 터널에 대한 환기해석의 적용성을 고찰하였고, 더불어 네트워크형 터널에 대한 환기해석이 가능한 간편한 방법을 제시하는데 그 목적이 있다.

• 대한수학회보
• /
• 제50권1호
• /
• pp.185-200
• /
• 2013

We study the bounded and the compact weighted composition operators from the Hardy space $H^{\infty}$ into BMOA and into VMOA, from BMOA into $H^{\infty}$, as well as from BMOA into the Bloch space. We also provide new boundedness and compactness criteria for the weighted composition operators on BMOA and on VMOA.

• Journal of applied mathematics & informatics
• /
• 제31권1_2호
• /
• pp.263-276
• /
• 2013

We discuss the effects of the ${\delta}^2$ and Lubkin acceleration methods on the partial sums of Fourier Series. We construct continuous, even H$\ddot{o}$lder continuous functions, for which these acceleration methods fail to give convergence. The constructed functions include some interesting trigonometric series whose properties were investigated by Hardy and Littlewood.