• Journal of the Korean Society of Manufacturing Process Engineers
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• v.21 no.1
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• pp.95-101
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• 2022

This paper proposes a method to process the shape of an optical transmission road and attempts to determine the most suitable single processing method for an acrylic plate optical transmission road. In addition, by manufacturing an automatic pattern processing device to generate certain shapes on the acrylic plate at regular intervals, and measuring the illuminance of the patterned acrylic plate optical transmission road, the measured illuminance was confirmed to fall under the KS illuminance values presented in Table 1. In conclusion, when an incident light of approximately 20,000 lx is applied, the transmission illumination is approximately 200 lx, which represents a transmission rate of approximately 1% for incident light and corresponds to the KS illumination criterion F. Additionally, the right-angle triangular pyramid base size (A) processed at a temperature of 350 ℃ for one second was 2 mm, exhibiting the largest transmission illumination of 280 lx. When the transparent acrylic plate was set to a constant size of 1.6 mm at the bottom of the right-angle triangular pyramid, the fastest response occurred at a processing tip temperature of 350 ℃ (0.04 s). On the other hand, it took 10 s to process the size of the bottom of the right-angled triangular pyramid at a temperature of 200 ℃ to 1.6 mm, and it was confirmed that the optical transmission efficiency was significantly reduced because of the burr that occurred at this time.

• Journal of the Daesoon Academy of Sciences
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• v.44
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• pp.213-261
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• 2023

The purpose of this article was to examine whether the parallel passages from The Canonical Scripture and Jeungsan Cheonsa Gongsagi (甑山天師公事記 Records of the Reordering Works of Celestial Master Jeungsan), the first full-length record related to the life of Kang Jeungsan compiled by Lee Sang-ho, indicate the same chronology. A comparison of the contents between The Canonical Scripture and Jeungsan Cheonsa Gongsagi revealed the following. The contents of The Canonical Scripture are categorized by a table of contents. By way of contrast, the contents of Jeungsan Cheonsa Gongsagi, is organized year by year. When parallel passages appear, the two texts tend to indicate the same year for specific events, but the chronology of some events do not match. A comparison of the contents of The Canonical Scripture and the first edition of Daesoon Jeongyeong (大巡典經 The Canonical Scripture of the Great Itineration) shows the following. Once again, the contents of The Canonical Scripture are organized via a table of contents. The contents of the first edition of the Daesoon Jeongyeong are also indicated through a table of contents. When lined up for comparison, most of the passages show the same content to have occurred in matching years. However, new contents are contained in this record that were absent in Jeungsan Cheonsa Gongsagi. All of these texts contain a summary of the life of Kang Jeung-san; however, they are organized differently. Jeungsan Cheonsa Gongsagi presents that summary chronologically (year by year with some gaps in years). Daesoon Jeongyeong and The Canonical Scripture both feature a table of contents wherein chapters are based around specific themes. One key takeaway is that different passages appear in the contents of each text. Also, The Canonical Scripture and the first edition of the Daesoon Jeongyeong contain some parallel passages wherein the two texts disagree on what year some events took place. Despite the different style of organization, Jeungsan Cheonsa Gongsagi and The Canonical Scripture can still be compared and such comparison shows the same pattern as comparison between The Canonical Scripture and Daesoon Jeongyeong. As a result of organizing and comparing the contents of the table of contents with the chronological record, the parallel passages wherein chronology is disputed can be highlighted and the introduction of new passages can also be shown.

• Journal of Korean Home Economics Education Association
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• v.29 no.3
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• pp.77-88
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• 2017

Nutritional adequacy of Target patterns in Dietary Guidance System were evaluated. Study subjects were 18 Target patterns designed for 2 children groups, 4 adolescent and 4 adult male and female groups in Dietary Reference Intakes for Koreans 2015. Nutrients examined were 4 macro-nutrients(protein, fat, carbohydrate, and dietary fiber), 5 minerals(Ca, P, Fe, Na, and K), and 5 vitamins(vitamin A, thiamin, riboflavin, niacin, and vitamin C). Energy and nutrients contents were calculated based upon assigned multiples of single serving in Target pattern and Representative Food Composition Table by Excel program. Among the 18 Target patterns, only 5 were mean adequacy ratio(MAR) of 1.0, fulfilled the expectations of Dietary Guidance System. Protein and Na contents were more than dietary reference intakes(DRI) in all 18 Target patterns. Dietary fiber, Ca, and K were deficient nutrient in 15, 10, and 9 Target patterns, respectively. The units of vitamin A were not same in Target pattern and DRI, retinol equivalent(RE) in Target pattern and retinol activity equivalent(RAE) in DRI. When calculate RE content of vitamin A in Target pattern to RAE content, 15 Target patterns did not reach to DRI of vitamin A. The Target pattern of elderly women showed the lowest mean adequacy ratio(MAR), 7 nutrients were less than DRI, need to be revised. Average energy contribution ratio of protein, fat, and carbohydrate were 16.04%, 24.35%, and 60.91%, respectively, fulfilled the adequate acceptable macro-nutrient distribution range(AMDR). To improve the nutritional inadequacy of dietary fiber, Ca, K, and vitamin A in Target pattern, effective mean may be the increasing vegetable group assignment. Also decreasing the meat fish egg legume group assignment in some Target pattern may be the way of preventing of protein overconsumption. The energy in adequate amount for condiment use also need to be considered.

• Smart Structures and Systems
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• v.9 no.3
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• pp.253-271
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• 2012

Finite element (FE) model updating is a useful tool for global damage detection technique, which identifies the damage of the structure using measured vibration data. This paper presents the application of a finite element model updating method to detect the damage of a small-scale reinforced concrete building structure using measured acceleration data from shaking table tests. An iterative FE model updating strategy using the least-squares solution based on sensitivity of frequency response functions and natural frequencies was provided. In addition, a side constraint to mitigate numerical difficulties associated with ill-conditioning was described. The test structure was subjected to six El Centro 1942 ground motion histories with different Peak Ground Accelerations (PGA) ranging from 0.06 g to 0.5 g, and analytical models corresponding to each stage of the shaking were obtained using the model updating method. Flexural stiffness values of the structural members were chosen as the updating parameters. In model updating at each stage of shaking, the initial values of the parameter were set to those obtained from the previous stage. Severity of damage at each stage of shaking was determined from the change of the updated stiffness values. Results indicated that larger reductions in stiffness values occurred at the slab members than at the wall members, and this was consistent with the observed damage pattern of the test structure.

• Journal of the East Asian Society of Dietary Life
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• v.1 no.2
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• pp.175-183
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• 1991

To examine the Royal evening party in the Man Kyoung Jeon, the authors studied“Jin Chan Eui Gue”, which is a historical record published in 1887(King Go-Jong) The results obtained from the study were as follows. 1. The dining tables were divided into two : fixed arranging tables(7) and taking-away tables. 2. There were no distribution of food and flowers to the attendants in the evening party. 3. Tables used in the evening party were all round tables. 4. According to the status or class of the attendant, the pattern or size of table settings were differentiated in the kinds of food, hights of food, flowers china ware etc. 5. All of the arrangements in the evening party were the same as those of the main party. 6. In the arrangements of tables for the King's Grand Mother, the hights of food on the dishes were as following levels, 1 dish : 9 chon(촌) 7 dishes : 7 chon(촌) 4 dishes : 6 chon(촌) 3 dishes : 5 chon(촌)

• Journal of the East Asian Society of Dietary Life
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• v.1 no.3
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• pp.239-257
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• 1991

To examine the next following day party and the next following evening party in the Man Kyong Geon, the authors analyzed“Jin Chan Eui Gue”, which is a historical record, published in 1887(King Go-Jong). The results obtained from the study were as follows, 1. The dining tables of next following day party were composed of two types:fixed arranging tables(22), and taking-away tables. 2. The dinind tables of next following evening party were also composed of two types:fixed arranging tables(6), and taking-away tables. 3. Food and flowers were distributed to the 290 attendants at the next following evening party. 5. According to the status or class of the attendants, the pattern or size of table settings were differentiated in the kinds of food, heights of food, flowers china ware etc. 6. Arrangements of the next following day party and the next following evening party were the same as those of the main party. 7. The arranged seat of the Crown Prince was facing the west. 8. In the arrangements of tables for the Crown Prince, the heights of food on dishes as following levels, 1 dish : 1chok(1척) 6 dishes : 8 chon(8촌) 5 dishes : 7 chon(촌)

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.5
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• pp.711-717
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• 1994

This study was conducted to obtain accurate data on intake, apparent digestibility and nitrogen balance of dietary protein which the korean take in habitually. Subjects were 8 male college students, aged from 20 to 26, and maintained their menu and life pattern as usual during a 4-week study. The same amount of diet that the subjects had consumped, and feces and urine were collected and measured to extract their nitrogen content data by Kjeldahl method. From above data, the apparent digestibility and the body nitrogen balance were estimated by determining daily protein intake and excretion. The daily protein intake measured by Jjeldahil method was 88.3$\pm$ 0.9g(1.45/kg of body weight /day) which marked 8.3% higher than that estimatd by food analysis table. The proportional of animal protein against total protein intake was 50.4$\pm$ 2.3%. Daily fecal protein loss was 14.3$\pm$0.6g and the apparent digestibility was 83.8$\pm$ 0.7%. The urinary nitrogen excretion was 10.30$\pm$0.19g. The nitrogen balance considering nitrogen excretion from feces indicated positive balance of 1.06$\pm$0.20g.

• The Korean Journal of Food And Nutrition
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• v.1 no.1
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• pp.41-46
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• 1988

The purpose of this study was to evaluate the relation of nutrients intake and copper status between nonvegetarian female college students and lacto-ovo-vegetarian female college students. The height, weight and serum copper concentrations were determined. Food nutrients analysis procedure was made by computer using food composition table. The results was summarized as followed; 1) Mean values of weight & height were respectively 53.581$\pm$1.68kg.157.051$\pm$1.43cm in nonvegetarians and 51.23$\pm$1.45kg.156.65$\pm$1.24cm in facto-ovo-vegetarians. 2) The average intakes of protein, fat, carbohydrate, fiber, Ca, P, Fe and Vit. C were above the RDA in the two groups, but those of calories was below the RDA in non-vegetarians. Especially, fiber and icon intakes were significant in the two groups(p< 0.01, p< 0.05). 3) The percentage of iron absorption was 7.64% in nonvegetarians and 5% in facto-ovo-vegetarians. 4) Mean serum copper values of nonvegetarian and vegetarian were 107.08$\pm$14.39ug/100m1 and 113.31$\pm$20.86ug/100ml, respectively.

• Annual Conference of KIPS
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• 2017.04a
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• pp.36-39
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• 2017

길이가 같은 두 문자열의 같은 위치에 있는 문자의 순위가 모두 일치할 때, 두 문자열은 순위동형이라 한다. 순위다중패턴매칭문제는 텍스트 T와 k개의 패턴들의 집합 $P^{\prime}=\{P_1,P_2{\ldots},P_k\}$이 주어졌을 때, P'의 패턴들과 순위동형인 T의 모든 부분문자열의 위치를 찾는 문제이다. 최근 전처리단계에서 P'에 대한 이동테이블을 O(kmqlogq) 시간에 계산하여 순위다중패턴매칭문제를 해결하는 해싱기반 알고리즘이 제시되었다. 이때 P'에서 가장 짧은 패턴의 길이를 m, q-그램의 길이를 q라고 한다. 본 논문에서는 P'이 주어졌을 때, 이동테이블을 O(mqlogq) 시간에 계산하는 병렬알고리즘을 제시한다. 실험결과, 본 논문에서 제시하는 병렬알고리즘은 k개의 스레드를 이용하여 m=100, q=5에 대해 k=100일때와 k=1,000일 때 순차알고리즘보다 각각 약 12.9배, 약 215배 빠른 수행시간을 보였다.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.547-550
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• 2011

플래시 메모리는 낮은 전력 소비와 높은 성능으로 인해 휴대용 기기에 널리 사용되고 있다. FTL은 플래시 내 자료를 관리하는 소프트웨어 계층으로 플래시 전체의 성능에 영향을 끼친다. 그 중 페이지 레벨 매핑 기법을 적용한 FTL은 유연성이 높고 속도가 빠르나 주소 변환 테이블의 크기가 큰 단점이 있다. 이를 해결하기 위해 자주 접근되는 영역의 매핑 주소만을 매핑 테이블 캐시에 올려놓는 Demand-based FTL(DFTL)이 제안되었다. DFTL 에서는 CMT(Cache Mapping Table)의 참조율이 떨어지는 경우 빈번한 플래시 메모리 접근 오버헤드가 발생하게 된다. 이러한 문제는 흔히 발생하는 일반적인 순차 접근에서조차 문제가 된다. 이에 본 논문에서는 저장 장치의 접근 패턴을 예측하여 CMT의 참조 엔트리를 미리 읽어오는 기법을 제안한다. 제안하는 기법은 저장 장치 접근 패턴의 순차성을 판단하여 연속된 매핑 주소를 미리 CMT에 올려놓고, 읽어오는 매핑 주소 엔트리의 양은 동적으로 관리한다. 추가적으로 CMT에서 발생하는 스래싱(thrashing) 을 파악하기 위해 쫓겨나는 희생 엔트리의 접근 여부를 분석하여 이를 활용하였다. 실험 결과에서 본 기법은 기존의 DFTL에 비해 약간의 공간 오버헤드와 함께 평균 50% 증가한 참조율을 보였다.