• Title/Summary/Keyword: CED

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An Extension Behavior of an Interface Kinked Crack by CED (CED에 의한 계면굴절균열의 진전거동)

  • 권오헌
    • Journal of the Korean Society of Safety
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    • v.11 no.2
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    • pp.9-15
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    • 1996
  • The characteristics on the extension of the CED(Crack energy density) concept to the interface kinked crack problems in a dissimilar material are examined. Each mode contributions of CED are found by symmetric and antisymmetric components and domain independent integrals. Finite element calculation is carried out to simulate the Interface kinked crack growth on bimaterial. The focus is the establishment of fracture criterion with CED and finding the orientation of crack extension. From the results, a prediction about the extension behavior of an interface kinked crack can be done. And we show that CED can be a parameter to indicate fracture criterion at an Interface kinked crack.

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The Evaluation of the Kinked Interface Crack Behavior in Dissimilar Materials by CED (CED에 의한 계면굴절균열의 진전거동평가)

  • Kwon, O.H
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.21 no.3
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    • pp.414-422
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    • 1997
  • The characteristics on the extension of the CED(Crack Energy Density) concept to the interface kinked crack problems in a dissimilar are examined. Each mode contributions of CED are found by symmetric and antisymmetric conponents and domain independent integrals. Finite element calculation is carried out to simulate the interface kinked crack growth on a bimaterial. The focus is the establishment of fracture criterion with CED and finding the orientation of crack extension. From the results, a prediction about the extension behavior of an interface kinked crack can be done. And we show that CED can be a parameter to indicate fracture criterion at an interface kinked crack.

A Fundamental Analysis of an Interface Crack by Crack Energy Density (균열에너지밀도에 의한 이종재 계면균열의 기초적 검토)

  • 권오헌;도변승언;서창민;김영호
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.16 no.8
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    • pp.1458-1467
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    • 1992
  • Recently, the composite materials have been researched actively by many researchers because of its useful properties. Especially, an interface crack on the dissimilar material exposes the behavior of the mixed mode crack even though under only the tension stress. In the previous papers, crack energy density(CED) was shown as the crack behavior evaluation parameter which can be expressed consistently from the onset until a final fracture. In a present paper, the basic properties of CED on the interface crack are examined because the results by CED at the homogeneous material above are also expected to be held at the dissimilar material. And we proposed that the contribution of each mode of CED can be separated and be evaluated. Furthermore, the total CED and contribution of each mode are evaluated by domain integral through a finite element analysis at the elastic crack model and the basic examination are carried out.

The Effect of Resistant Starch on Physic-Nutrition Availability in Human (저항전분이 인체내 영양생리 효과에 미치는 영향)

  • 오승호;신말식;최인선
    • Journal of Nutrition and Health
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    • v.35 no.9
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    • pp.932-942
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    • 2002
  • In order to observe the effects of resistant starches on the physio-nutrition in women, nine female university students were investigated using cellulose (CED), resistant starch 3 (RS3D) and resistant starch 4 (RS4D) diets. Each woman's daily intake and excretions of energy, protein and lipid were mesured together with the apparent digestibility and the amounts of total cholesterol and HDL-cholesterol were measured. The results obtained from this researh are as follows. The daily energy intake were significantly higher in the RS4D (Resistant starch 4 diet) compared with the CED(Cellulose) and the RS3D (Resistant starch 3 diet). The metabolic energy in those periods with RS added to their diets were significantly higher whereas the metabolic energy in the period CED was significantly low. The daily protein intake was significantly higher in the RS4D compared with the CED and the RS3D. The apparent digestibility of protein was significantly higher in the RS4D compared with the CED and the RS3D. The daily lipid intake was significantly higher in the CED compared with the RS3D and the RS4D. The apparent digestibility of lipid was not significant in that period. The concentration of total cholesterol, HDL-cholesterol, % of HDL-cholesterol and atherogenic index (A.I.) were not significant in those period. As the above results indicate, while RS3 appear to have similar effect on energy consumption rate, apparent protein digestibility and content of cholesterol in plasma, compared with the CED, but energy consumption rate and apparent digestibility of protein are significantly higher in the RS4D compared with the CED. Thus, it appears that cellulose and RS 3 share similar effects on physio-nutrition in human, while RS4 does not have the similar effects. (Korean J Nutrition 35(9) : 932∼942, 2002)

KoCED: English-Korean Critical Error Detection Dataset (KoCED: 윤리 및 사회적 문제를 초래하는 기계번역 오류 탐지를 위한 학습 데이터셋)

  • Sugyeong Eo;Suwon Choi;Seonmin Koo;Dahyun Jung;Chanjun Park;Jaehyung Seo;Hyeonseok Moon;Jeongbae Park;Heuiseok Lim
    • Annual Conference on Human and Language Technology
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    • 2022.10a
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    • pp.225-231
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    • 2022
  • 최근 기계번역 분야는 괄목할만한 발전을 보였으나, 번역 결과의 오류가 불완전한 의미의 왜곡으로 이어지면서 사용자로 하여금 불편한 반응을 야기하거나 사회적 파장을 초래하는 경우가 존재한다. 특히나 오역에 의해 변질된 의미로 인한 경제적 손실 및 위법 가능성, 안전에 대한 잘못된 정보 제공의 위험, 종교나 인종 또는 성차별적 발언에 의한 파장은 실생활과 문제가 직결된다. 이러한 문제를 완화하기 위해, 기계번역 품질 예측 분야에서는 치명적 오류 감지(Critical Error Detection, CED)에 대한 연구가 이루어지고 있다. 그러나 한국어에 관련해서는 연구가 존재하지 않으며, 관련 데이터셋 또한 공개된 바가 없다. AI 기술 수준이 높아지면서 다양한 사회, 윤리적 요소들을 고려하는 것은 필수이며, 한국어에서도 왜곡된 번역의 무분별한 증식을 낮출 수 있도록 CED 기술이 반드시 도입되어야 한다. 이에 본 논문에서는 영어-한국어 기계번역 분야에서의 치명적 오류를 감지하는 KoCED(English-Korean Critical Error Detection) 데이터셋을 구축 및 공개하고자 한다. 또한 구축한 KoCED 데이터셋에 대한 면밀한 통계 분석 및 다국어 언어모델을 활용한 데이터셋의 타당성 실험을 수행함으로써 제안하는 데이터셋의 효용성을 면밀하게 검증한다.

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Comparison of cellulose DP measurements using the CED (Cupriethylene diamine) and NMMO(N-methylmorpholine-N-oxide) (CED(Cupriethylene diamine)과 NMMO (N-methylmorpholine-N-oxide)를 이용한 셀룰로오스의 중합도 측정법의 비교)

  • Lee, Min-Woo;Park, Ji-Soon;Park, Dong-Hui;Seo, Yung-Bum
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.42 no.5
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    • pp.62-66
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    • 2010
  • Cellulosic materials were dissolved by NMMO(N-methylmorpholine-N-oxide) and CED (Cupriethylene diamine), respectively, to measure their DPs (degrees of polymerization) by using viscometer. We changed cellulose DPs by applying various amounts of low intensity electron-beam radiation to the cellulosic materials. NMMO is environmental-friendly, non-toxic, and biodegradable organic cellulose solvent and used industrially because of its high cellulose dissolving power and high solvent recovery ratio. The cellulose DP measurement results using these two different chemicals were correlated highly ($R^2$ >0.95). It was also found that cellulose with high DP was dissolved more easily in NMMO than CED. In addition, NMMO method gave more higher resolution in the measurement.

A Study on IEEE 1149.1 TAP Test Methodology for Minimum Area Overhead (최소 오버헤드를 갖는 IEEE 1149.1 TAP 테스트 기법에 관한 연구)

  • 김문준;장훈
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.41 no.11
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    • pp.61-68
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    • 2004
  • Today almost all chips have IEEE 1149.1 tap controller inside. Recently the circuit is embedded in the chips for other functional objectives. Hence a CED technique for testing and monitoring the IEEE 1149.1 tap controller had been proposed. This paper studies the optimal CED test technique on the IEEE 1149.1 tap controller. There are duplication, parity prediction, and hybrid techniques. The hybrid technique shows the best result on the area overhead. This means that the hybrid technique is perfectly adequate for the IEEE 1149.1 tap controller to be applied to test with the optimal area overhead and can be used widely in the field. Furthermore, we made more reduction from the previous method resulting in less area overhead.

Effect of Resistant Starch on Human Glycemic Response (저항전분이 인체 혈당 조절기능에 미치는 영향)

  • 이영희;오승호
    • Korean Journal of Community Nutrition
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    • v.9 no.4
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    • pp.528-535
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    • 2004
  • In order to observe the effects of resistant starches on human glycemic response, nine female university students were investigated using cellulose (CED), resistant starch 3 (RS3D) and resistant starch 4 (RS4D) diets. Each woman's blood sugar and insulin, triacylglycerol and free fatty in plasma concentration were measured at fasting state, then 15, 30, 45, 60, 75, 90 and 120 minute after each test diet feeding. Glycemic indices of the Cellulose diet (CED: 57.9 $\pm3.00$), the Resistant starch 3 diet (RS3D: 52.6 $\pm7.9$) and the Resistant starch 4 diet (RS4D: 52.9 $\pm10.2$) were similar to each other, but they were significantly lower in comparison with those of white wheat bread diet (WWBD: 100). Insulinemic indices of the CED (49.8 $\pm8.2$), RS3D (50.0 $\pm7.3$) and RS4D (72.4 $\pm7.7$) were significantly lower in comparison with the white wheat bread diet (WWBD: 100), but among the dietary fiber diets, the insulinemic index of RS4D was significantly higher than the CED and the RS3D. Plasma triacylglycerol contents of the CED, RS3D and RS4D including WWBD showed gradual increase in tendency after lowering in early stage of each test diet feeding, but not significantly different in each dietary fiber added diet. Plasma free fatty acid contents of the CED, RS3D and RS4D including WWBD showed gradual decrease in tendency after each test diet feeding, but not significantly different by each dietary fiber added diet. In above results, we speculate that resistant starch 3 controls rapid elevation of blood sugar by delaying intestinal digestion and absorption of cellulose, but the result appears to be different from RS4 in comparison. Thus, RS3 intakes may contribute to the diet therapy of diabetic humans, but more studies on RS4 is needed in the future. (Korean J Community Nutrition 9(4): 528∼535, 2004)

Effects of Cellulose and Pectin on Diet-induced Thermogenesis in Young Women (한국인 젊은 여성에서 셀룰로오스 및 펙틴이 식이성 발열효과에 미치는 영향)

  • Oh, Seung-Ho;Park, Jeong-Jin;Choi, In-Seon;Ro, Hee-Kyong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.2
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    • pp.194-200
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    • 2007
  • The purpose of this study was to observe the effects of fiber free control diet (CD), cellulose diet (CED) and pectin diet (PTD) on diet induced thermogenesis (DIT) in healthy Korean woman for 3 hours. The three test diets were as follows: CD (carbohydrate intake: 63.4% of energy, protein intake: 14.0% of energy and fat intake: 25.8% of energy), CED (carbohydrate intake: 62.5% of energy, protein intake: 14.0% of energy and fat intake: 26.1% of energy) and PTD (carbohydrate intake: 62.7% of energy, protein intake: 14.0% of energy and fat intake: 26.2 of energy). Groups were served 10 g of cellulose for CED and 10 g of pectin for PTD, respectively. DIT was measured at fasting state and at 30, 60, 90, 120, 150 and 180 min after consuming each diet. The mean age of all subjects was $22.3{\pm}1.9$ years. Body weight was $52.5{\pm}8.6$ kg and body mass index was $20.6{\pm}2.7kg/m^2$. Preprandial resting energy expenditure was $0.79{\pm}0.02kcal/min$ and postprandial DIT were $14.05{\pm}0.62%$ for CD, $9.33{\pm}0.62%$ for CED, $11.07{\pm}1.35%$ for PTD as a percentage of the energy load. DIT of CD was significantly higher than those of CED and PTD. There was no significant difference in postprandial change in body temperature after consuming each test diets and the sympathetic nervous system activity measured by heart rate was significantly higher in CD than CED and PTD (p<0.05). With this study, it can be concluded that CED and PTD have significantly lowered in DIT (p<0.05). We didn't show the correlation of the factors that relate in DIT; thus, further experiments on that matter should be followed.