• Bulletin of the Korean Chemical Society
• /
• v.33 no.11
• /
• pp.3827-3830
• /
• 2012

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.1322-1325
• /
• 2009

Adaptive black band insertion improve blur phenomenon that caused by hold type issue of LCD, the approach regulate charge time by OE signal to control black inserted ratio, and the charge time be modified according the motion quantity of displaying content.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.367-370
• /
• 2007

An EEFL with the sodium free alumino-silicate glass of high K and low $tan{\delta}$, has been investigated. As compared with borosilicate and the soda-lime EEFLs, the luminous efficiency as well as the pinhole stability of new EEFLs improves remarkably without blackening of $NaHg_2$.

• Proceedings of the Korean Powder Metallurgy Institute Conference
• /
• 2006.09a
• /
• pp.357-357
• /
• 2006

• Proceedings of the Korean Powder Metallurgy Institute Conference
• /
• 2006.09a
• /
• pp.162-162
• /
• 2006

• Structural Engineering and Mechanics
• /
• v.34 no.2
• /
• pp.281-284
• /
• 2010

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.3
• /
• pp.675-680
• /
• 2019

We, in this note, decompose the invariant Laplacian of the unit complex ball of ${\mathbb{C} }^n$ by the radial part and tangential part as ${\tilde{\Delta}}={\tilde{\Delta}}_{rad}+{\tilde{\Delta}}_{tan}$. We give several properties and interpretations involved with this decomposition.

• 중국학논총
• /
• no.64
• /
• pp.183-203
• /
• 2019

谭嗣同是一个试图'用科学来解释和理解儒学'的人, 而不是'用儒学来解释和理解科学'的态度. 如果當时没有对中国介绍的西方科学的广泛理解, 他的《仁学》是无法编写的, 他的哲学体系也不可能建立. 在'仁学'体系中, 我们可以看到当时翻译介绍的不少西方科学书籍的影响. 他试图用有关以太, 电, 心力等的理论解释传统儒学的核心概念'仁', 以探究作为普遍哲学的儒学的可能性, 从科学的立场重新解释传统思想.

• Journal of the Korean Wood Science and Technology
• /
• v.34 no.2
• /
• pp.37-45
• /
• 2006

The viscoelastic properties of blends of melamine-formaldehyde (MF) resin and poly(vinyl acetate) (PVAc) for engineered flooring used on the Korean traditional ONDOL house floor heating system were investigated by dynamic mechanical thermal analysis (DMTA). Because MF resin is a thermosetting adhesive, the effect of MF rein was shown across all thermal behaviors. The addition of PVAc reduced the curing temperature. The DMTA thermogram of MF resin showed that the storage modulus (E') increased as the temperature was further increased as a result of the cross-linking induced by the curing reaction of the resin. The storage modulus (E') of MF resin increased both as a function of increasing temperature and with increasing heating rate. From isothermal DMTA results, peak $T_{tan{\delta}}$ values, maximum value of loss modulus (E") and the rigidities (${\Delta}E$) of MF/PVAc blends at room temperature as a function of open time, peak $T_{tan{\delta}}$ and maximum loss modulus (E") values were found to increase with blend MF content. Moreover, the rigidities of the 70:30 and 50:50 MF/PVAc blends were higher than those of the other blends, especially of 100% PVAc or MF. We concluded that blends the MF/PVAc blend ratios correlate during the adhesion process.

• Journal of the Korean Institute of Navigation
• /
• v.11 no.2
• /
• pp.73-88
• /
• 1987

It is well known that the height of tank metacenter above the centroid of fluid in a tank is given by i/v where I is the inertia moment of free surface and v is the fluid volume. It is supposed in this formula that the inclination of ship is small and that the free surface of fluid do not touch the top and the bottom of tank. It the inclination of ship is large, the height of tank metacenter may be possibly greater than that given by i/v. The height of tank metacenter is smaller than i/v when the free surface of fluid touch the top or the bottom of tank. The reasonable method to calculate the height of tank metacenter is presented in this paper and prepared in FORTRAN program by FUNCTION EFFRES. The approximate formula was also developed and given by $g_m=(1+\frac{2}{1}tan^2\theta)[1-EXP\{-12(\frac{\alpha(1-\alpha)k}{tan\theta})^{1.25}\}]\frac{i}{v}$ where $g_m$ is the distance from the centroid of fluid to the tank metacenter, $\theta$ is inclined angle of ship, $\alpha$ is the ratio of filled volume to tank capacity and k is the ratio of the depth to the width of tank. The values calculated by the approximate formula given in this paper were compared with the exact values from the computer program and proved out to be sufficiently precise for practical use.