• 대한수학회지
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• 제48권3호
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• pp.465-474
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• 2011

In this paper, logarithmically regularity criteria for the 3D MHD equations are established in terms of the Morrey-Camapanto space.

• 대한수학회보
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• 제52권2호
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• pp.619-626
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• 2015

This paper considers regularity for the p-harmonic and Ostwald-de Waele flows. Some Serrin's type regularity criteria are established for 1 < p < 2.

• 충청수학회지
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• 제34권1호
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• pp.85-92
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• 2021

In present paper, inspired by the recently paper [1], we give the mixed pressure-velocity regular criteria in view of Lorentz spaces for weak solutions to 3D micropolar equations in a half space. Precisely, if (0.1) ${\frac{P}{(e^{-{\mid}x{\mid}^2}+{\mid}u{\mid})^{\theta}}{\in}L^p(0,T;L^{q,{\infty}}({\mathbb{R}}^3_+))$, p, q < ∞, and (0.2) ${\frac{2}{p}}+{\frac{3}{q}}=2-{\theta}$, 0 ≤ θ ≤ 1, then (u, w) is regular on (0, T].

• 호남수학학술지
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• 제27권4호
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• pp.665-672
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• 2005

By its simplicity and efficiency, subdivision is a widely used technique in computer graphics, computer aided design and data compression. In this paper we prove a regularity theorem for ternary interpolatory subdivision scheme that can be applied to non-stationary subdivision. This theorem converts the convergence of the limit curve of a ternary interpolatory subdivision to the analysis of the rate of the contraction of differences of the polygons.

• 대한수학회지
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• 제53권3호
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• pp.597-621
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• 2016

We present regularity conditions for suitable weak solutions of the Navier-Stokes equations with slip boundary data near the curved boundary. To be more precise, we prove that suitable weak solutions become regular in a neighborhood boundary points, provided the scaled mixed norm $L^{p,q}_{x,t}$ with 3/p + 2/q = 2, $1{\leq}q$ < ${\infty}$ is sufficiently small in the neighborhood.

• 디지털융복합연구
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• 제20권1호
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• pp.361-368
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• 2022

이 연구에서는 새롭게 Asian Working Group for Sarcopenia에서 제시한 수정된 근감소증 진단 cut-off value를 이용하여 정상 집단과 근력이 저하된 possible sarcopenia(PS) 집단을 구분하였다. 국민건강영양조사 제 7기 자료를 토대로, 집단간 신체적 특성의 차이와 삶의 질, 유·무산소 운동 실천에 따른 교차비를 산출하였다. 대상자는 20세-80세까지를 포함하였다. 집단간 차이는 복합표본 독립 t-test와 logistic 회귀분석을 통해 확인하였다. 그 결과는 PS 집단은 나이가 더 많았으며, 신장, 체중, 체질량지수가 모두 낮았다. 허리둘레는 남성 PS 집단이 유의하게 낮았으나, 여성 PS 집단이 유의하게 높았다. 삶의 질의 영역 중 운동 능력에서 일상활동에 지장이 있는 경우가 남성에서는 8.28배, 여성에서는 15.52배 높았다. 유산소 운동의 실천 여부도 PS 집단에서 남녀 각각 19%, 26% 더 낮았으며, 근력 운동실천 여부도 남녀 각각 52%, 43% 더 낮았다.

• 한국항공운항학회지
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• 제29권4호
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• pp.166-172
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• 2021

Obstacle Limitation Surfaces (OLS) are set to protect a certain amount of airspace to limit objects, such as building, other structures, penetrating OLS for safety and regularity of aircraft operations in the vicinity of aerodromes. However, many civil petitions have been raising for effective utilization of lands and permission of building construction which penetrating OLS. While Republic of Korea are limiting installation of penetrating objects based on the National law of airport facilities, such objects are possibly permitted, only if, the possible risks coming from objects are acceptable or negligible in terms of safety and regularity in aircraft operations through the evaluation process, called as an aeronautical study. However, many countries are currently applying their own criteria, processes resulting in failing secure reliable results in aeronautical study. This research aims to establish the framework on criteria, process, and methodologies how the aeronautical study works including work flows between many stakeholder and responsibilities to be specified in national regulation system.

• 인지과학
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• 제1권2호
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• pp.317-346
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• 1989

물체의 외곽형태로부터 개념적 인식을 도출학기 위하여 사람의 직관과 부합하는 인지적 형태분할 방법을 제안하였다. 의미있는 부분과 그들의 관계로써 형태의 구조를 기술한느 표현은 인지능력을 포함하며 보다 인간적인 방법이다. 일반적으로 인고물은 많은 동직선들과 규칙성을 갖는다. 이러한 인공물의 인지적 분할을 위해서 인지실험에서 의거한 많은 규칙들을 동직선성과 규칙성의 맥락에서 적용하였다. 자연물에 관한 인지적 분할은 하나의 오목점에 대하여 선과 점들의 가능한 배치를 분석하여 이루어졌다. 분할선의 길이, 오목점에서 분할선의 수효, 오목점의 근접성, 오목점의 첨예성, 점들의 대응성과 같은 5가지의 평가기준을 가중합으로 하여 각 배치에 대한 비용함수를 계산한다. 이들 기준은 근접성, 대칭성, 단순성과 같은 사람의 지각속성을 반영한다. 가장 적합한 점은 비용함수를 계산하여 3가지 점들의 집합에서 선택된다. 상이한 종류의 형태에 대하여 수행된 실험은 사람의 직관과 호응하는 결과를 보여 주었다.

• 동의생리병리학회지
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• 제34권1호
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• pp.53-59
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• 2020

Dietary habits are known to be closely related not only to chronic diseases such as cardiovascular disease and diabetes, but also to self-rated health (SRH). Consequently, there is a highly important lifestyle component in maintaining a healthy life. The aim of the present study was to determine the correlation between diverse dietary habits based on the Sasang constitutions (SC) and SRH. The data were collected from 2,984 participants who met the constitution pharmacology criteria and whose SC were clinically confirmed by SC professionals. Dietary habits were observed by assessing the regularity of diet, meal volume, and meal speed; single-answer questions were used for SRH. Fisher's exact/chi-square test and logistic regression were used to analyze the correlation between dietary habits depending on constitutional type and SRH. In association with constitutional SRH, the Taeum type is related to the amount of meal, the Soeum and Soyang types are related to the regularity of meal and meal volume. In the Taeum type, there was a significantly higher risk of lower SRH when meal volumes were irregular less than previous amounts. Irregular diet, as well as increased or decreased meal volume, negatively correlated with SRH in the Soeum type; in the Soyang type, irregular diet and decreased or irregular meal volume negatively affected SRH. This showed the presence of the different effects of dietary habits on health depending on constitution and also confirmed the association of the regularity of diet and meal volume based on constitution and the frequency of bad dietary habits with SRH. We suggest that personalized healthcare with adequate dietary improvement considering constitution is needed for health management or improvement.

• 셀메드
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• 제14권2호
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• pp.5.1-5.4
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• 2024

PCOS is the most common endocrine pathology in females of reproductive worldwide. The prevalence ranges between 5% and 15% depending on the diagnostic criteria applied.Its etiology involves both genetic and environmental factors. Typically, women with PCOS show clinical and biochemical hyperandrogenism, oligoanovulation, and micropolycystic morphology of the ovaries. Unani formulation containing Nankhwah, Badiyan and Wajturki possessing the properties of Mudirr-i-Bawl-o- Hayd, mujaff -iBalgham, Munaffis-i- balgham, Muhallil, Muqawwi-i-Jigar were used in the form of Joshanda 6gm BD Starting from 5 days prior to expected period date to 5 days during menses for 3 cycles, which led to regain regularity of menses, correcting the amount of flow and reducing the ovarian volume on US. Thus unani medications have the potential to treat ths symtoms of PCOS and improve the quality of life of women.