• Electrical & Electronic Materials
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• v.23 no.9
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• pp.20-27
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• 2010

• Proceedings of the Korean Society of Life Science Conference
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• 2000.09a
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• pp.85-85
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• 2000

• Proceedings of the KACD Conference
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• 2003.05a
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• pp.291-291
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• 2003

손상에 의한 치근 흡수는 표면 흡수(surface resorption), 염증성 흡수(inflammatory resorption) 및 대치성 치근 흡수(replacement resorption)가 있는데 치근 흡수의 정도는 탈구와 재식 사이의 시간, 치주 인대의 손상 정도, 탈구된 치아의 보관 조건 및 치아 발육 정도 등에 영향을 받는다.(중략)

• 중국학논총
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• no.67
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• pp.139-156
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• 2020

程明道言性卽天道, 言人心之本體卽宇宙之本體, 道理雖至爲簡單, 但含義卻極爲豐富。我們可以一分解的程序步驟來言其奧蘊。首先, 本體卽於宇宙流行變化中見, 卽天道於宇宙流行變化中見。其次, 流行變化卽生生不已, 生生不已之機爲善, 故本體含善之價値性, 卽天道含善。最後, 本體在人爲性, 或天道賦於人爲性, 故人性亦含生生不已之機, 而人性爲善。而程明道說 "只此便是天地之化, 不可對此箇別有天地。天地的生化就表現在性體道德創造之純亦不已中。就此而言, 與程明道天人一本之主張並不相違背, 且可互爲補充證明, 在他的四維架構中, 這也是理論詮釋互相循環的一種模式。

• 중국학논총
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• no.72
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• pp.145-160
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• 2021

程頤作爲宋明理學思想家,在確立朱熹思想哲學體系方面產生了巨大影響｡特別是在修養論領域,程頤對修養論的研究與朱熹相比相對不完善｡程頤的修養體系以"主敬"爲中心,通過對敬的解釋,提出了修養學習的意義｡著眼於這一部分,希望通過"非對象性"探索在沒有對象關系的情況下也可以學習的敬工夫中與教育接軌的地方｡本論稿以將教化作爲國家政策的二程兄弟的教育宗旨爲背景,觀察當時重視教化的狀況,硏究程頤的"主敬"工夫的意義｡首先,通過程頤修養論理解思想哲學,進而把握教育家的宗旨,探索工夫原理,是有意義的工作｡

• 중국학논총
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• no.64
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• pp.223-239
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• 2019

程明道以天理言天道, 可細分爲天理之實說與天理之虛說. 天理之實說, 是就天理之超越本體自身言其內蘊, 稱之爲第一義之天理; 天理之虛說, 是就天理之自然之勢言其內蘊, 稱之爲第二義之天理. 一是超越性的萬物存在所以然之理, 一是現實上的萬物存在之然之理. 筆者以爲可以本體層與作用層來加以分疏. 前者是指天理超越之自體, 其至善,完美自足, 永恒而遍在; 後者是指天理作用於現象世界之表現, 天理內賦於萬事萬物, 就其現實存在而言, 一事有一事之理, 一物有一物之理, 但因事物之自然情勢各有不同, 故而在表現之理上亦各有不同, 在表現之理上雖各有不同, 但推其所以然之理, 則萬物皆不同. 因此, 此亦可理一分殊來作說明. 對於這些相關性的討論詮解, 如何予以連結溝通起來, 皆置於本文申論.

• Journal of Soil and Groundwater Environment
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• v.12 no.3
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• pp.36-43
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• 2007

In the case of single well pumping tests the storativities are generally overestimated. To compensate these errors, the effective wellbore radius should be introduced as a distance to an imaginary observation well in the time-drawdown analysis. Effective wellbore radius can be calculated through step drawdown tests or using skin factor equation. But both are of trial-and-error methods guessing real storativity values and, therefor, are difficult to apply to the field conditions. An equation was developed to estimate effective wellbore radius from storativity values obtained from pumping well data. For this study, a total of 136 time-drawdown data set were used to derive the equation. The effective wellbore radius were estimated first by changing them till the storativity values obtained from the pumping-well data match the ones based on the observation-well data. Then the equation was regressed from the relation between effective wellbore radius and the storativity values obtained from the pumping-well data. It is believed that the equation would be useful in estimating effective wellbore radius from the single well tests.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.2
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• pp.113-118
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• 2016

This study was aimed to analyze the Influence of Reasonable Accommodation on the Employment Probability and Job Retention of the People with disabilities. Survey on the employment discrimination of people with disabilities was utilized. The methodologies used in the study are logistic regression estimating job probability, multiple regression to evaluate job retention. As a result, reasonable accommodation for initial exam was not statistically significant on the employment probability. While, exam process reasonable accommodation was statistically significant on the employment probability. For job retention, recruit accommodation, workplace access accommodation were not significant on the job retention. While, company regulation and job adjustment was statistically significant on the job retention. It is necessary to be provided with reasonable accommodations in the direction of increasing the employment and strengthening job retention of people with disabilities. There is a need to support and expand the reasonable accommodation to the employer by the policy.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.39 no.3
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• pp.311-318
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• 2015

A nonlinear dynamic response structural optimization process is proposed for the television (TV) packing system that protects the damage from a drop situation using the equivalent static loads (ESLs). Topology optimization using ESLs is carried out for conceptual design, and shape optimization using stress ESLs for a virtual model is performed for detailed design. Stress ESLs are static loads that generate the same displacement as well as the stress fields of linear static analysis as those of nonlinear dynamic analysis. Thus, the response of nonlinear dynamic analysis can be utilized as a constraint in the linear static structural optimization. An actual example is solved to validate the process. The drop test of a television packaging system is analyzed by LS-DYNA, and NASTRAN is used for optimization.

• Applied Microscopy
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• v.20 no.2
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• pp.81-101
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• 1990

Toad bladder의 상피수송(上皮輸送)을 분석(分析)하기 위하여 동결치환(凍結置換) 및 동결절단법(凍結切斷法)을 적용(適用)하여 전자현미경(電子顯微鏡) 관찰(觀察)을 실시하였다. 방광(膀胱)의 점막층(粘膜層)은 과립성세포(顆粒性細胞), 미토콘드리아가 풍부한 세포, 점막분필세포(粘膜分泌細胞) 및 기저세포(基底細胞)등 4가지 세포로 구성되어 있었다. 과립성세포(顆粒性細胞)는 점막표면적의 대부분을 점유하며 $Na^+$ 수송(輸送)에 주요한 역할을 하고, 정단부(頂端部)의 세포질에는 다수의 과립이 분포하며 정단세포막(頂端細胞膜)은 microvilli type I로 배열되어 있고, 표면에 glycoprotein을 함유하는 세포외막(細胞外膜)이 관찰되었다. 대조적으로 미토콘드리아가 풍부한 세포는 세포질 전역에 걸쳐 다수의 미토콘드리아가 분포해 있으며 주요 기능은 $H^{+},\;K^{+}$ 및 $HCO_{3}^{-}$ 분필수송(分泌輸送)에 관여할 것으로 생각되며 이들 수송상피(輸送上皮)는 정단부가 견고연접(堅固連接)으로 둘러 싸이고 기저세포막(基底細胞膜)은 인접세포와 서로 분리되므로 상피세포의 극성이 유지되며 정단부(頂端部) 세포막과 기저세포막의 수송특성(輸送特性)은 각기 다르다고 생각된다. 따라서 두꺼비 방광(膀胱)에서 상피수송(上皮輸送)은 세포 통과수송 및 세포간 분류수송 경로를 나타내고 있다. 한편 세포막 투과성(透過性)의 조절과 관련하여 동결절단(凍結切斷) 전자현미경 관찰에 의하면 forskolin에 촉진된 정단부(頂端部) 세포막 투과성의 변화는 세포막내(細胞膜內) 입자(粒子)의 분포와 밀접한 관계를 가지는 것으로 보인다. 특히 과립성세포(顆粒性細胞)에서 집단으로 관찰되는 세포막내(細胞膜內) 입자(粒子)는 forskolin에 유도된 정단세포막(頂端細胞膜) 투과성의 변화를 나타내주는 것으로 사료되나 이의 기능적 의미에 대하여는 연구가 더욱 필요하다고 본다.