유한요소해석을 통한 장간조립교 주요 부재의 안정성 분석 연구

이종우,이재영,조성식,유삼현,최현호,윤우섭,김태양,Lee, Jong-Woo,Lee, Jae-Young,Cho, Seong-Sik,Yoo, Sam-Hyun,Choi, Hyun-Ho,Yun, Woo-Seob,Kim, Tae-Yang 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.3

In this paper, the results of computational analysis for the stability and F.S.(Factor of Safety) of Bailey Panel Bridge have been presented by FEM(Finite Element Method). The computational analysis was conducted by using LUSAS V14.0 that is a program applicated in the field of Civil Engineering. 6-free beam elements and 3-free truss elements were considered and F.S. against Yield Stress of main sections(considered self-weight and Live-Load) was investigated through the linear-elastic analysis method. The results showed that currently used sections of bailey bridge satisfied for the standard F.S. unit and could be operated in drill of troops and battle fields.

장간조립교 주요 부재의 강도 분석 연구

이종우,유삼현,김인수,김태양,최현호,윤우섭,김영철,Lee, Jong-Woo,Yoo, Sam-Hyun,Kim, In-Soo,Kim, Tae-Yang,Choi, Hyun-Ho,Yoon, Woo-Seob,Kim, Young-Cheol 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.1

In this paper, the results of experimental analysis for the chemical composition and strengh verification of Bailey Panel Bridge have been presented. Some of main sections of bailey bridge colllected from military engineer troops were prepared for the chemical composition and strengh verification. The composition test and strength verification were conducted by using the optical microscope and Scanning Electron Microscope(SEM), Automatic Control Spark Emission Spectrometer(OBLF), X-ray Fluorescence Spectroscopy(XRF) and Instron measurement. The results showed that currently used sections of bailey bridge passed the strength verification and could be operated in drill of troops and battle fields.

Analytical Study of Contact Stress on Wafer Edge in CMP

이종우(Jong Woo Lee),이다솔(Da Sol Lee),정선호(Seon Ho Jeong),김현진(Hyun Jin Kim),박병준(Byeong Jun Park),정해도(Hae Do Jeong) Korean Society for Precision Engineering 2018 한국정밀공학회지 Vol.35 No.2

海藻類의 無機成分

이종우(Jong-Ho Lee),성낙주(Nak-Ju Sung) 한국식품영양과학회 1980 한국식품영양과학회지 Vol.9 No.1

1976年 6月부터 10月사이에 慶南 忠武 一圓에서 比較的 利用度가 높고 生産量이 많은 海藻類 16種을 採集하여 重金屬을 中心으로 한 無機成分을 分析하여 다음과 같은 結果를 얻었다.<br/> 1) 一般的으로 綠藻類에는 철, 니켈 등의 含量이 높은 반면 褐藻類에는 납, 니켈 및 망간 등이 낮은 含量을 보였으며 카드뭄, 구리, 니켈 및 마그네슘등에서도 몇 가지 海藻類가 特別한 含量差異를 나타내었다.<br/> 2) 카드뭄含量은 綠藻類 0.58~1.04ppm(平均 : 0.85ppm), 褐藻類 0.32~2.10pp (平均 : 1.08ppm), 紅藻類 0.54~1.70ppm (平均 : 1.04ppm) 이었는데 김, 미역, 다시마 등은 0.3.~0.3 ppm의 分布로써 예상외로 낮은 含量을 나타내었다.<br/> 3) 납의 含量은 綠藻類 0.67~1.40ppm(平均 : 1.03 ppm), 褐藻類 0.60~1.00 ppm(平均 : 0.82ppm), 紅藻類 0.56~2.40 ppm(平均 : 1.28ppm)으로써 魚貝類에 比해서 상당히 낮은 含量이었다.<br/> 4) 구리의 含量은 綠藻類 10.8~24.2ppm (平均 : 18.95ppm), 褐藻類 7.4~24.6ppm (平均 : 18.16ppm), 紅藻類 6.4~31.2ppm (平均 : 19.94ppm)의 分布이었는데 몇 種의 海藻를 除外하고는 全般的으로 높은 含量을 보이고 있다.<br/> 5) 철의 含量은 綠藻類 686.4~1,159.0ppm(平均 : 916.5ppm), 褐藻類 131.0~499.2ppm (平均 : 310.16ppm), 紅藻類 156.0~530.4ppm(平均 : 248.2ppm)으로써 綠藻類는 다른 海藻類에 比하여 特히 높은 값을 나타내었다.<br/> 6) 망간의 含量은 綠藻類 48~221ppm (平均 : 157.25ppm), 褐藻類 12~65 ppm (平均 : 41ppm), 紅藻類 72~162 ppm (平均 : 121 ppm)의 分布로써 褐藻類는 特히 낮은 含量을 나타내었다.<br/> 7) 아연의 含量은 綠藻類 191.3~451.1ppm(平均 : 290.05ppm), 褐藻類 89.9~374.2ppm(平均 : 202.64ppm), 紅藻類 106.4~281.4ppm(平均 : 188.93ppm)이었다.<br/> 8) 마그네슘含量은 綠藻類 0.48~1.83% (平均 : 1.27%), 褐藻類 1.04~1.71%(平均 : 1.21%), 紅藻類 0.42~1.24%(平均 : 0.97%)이었다.<br/> 9) 불소는 海藻類中에 特히 많이 含有되어 있어서 綠藻類 29.2~92.7ppm(平均 : 53.03ppm), 褐藻類 33.3~43.5ppm(平均 : 39.18ppm), 紅藻類 32.4~59.0ppm(平均 : 44.84ppm) 이었다. Sixteen species of algae (4 species of green algae, 5 species of brown algae and 7 species of red algae) were collected from the coast of Chungmu, Gyeongnam, from June to October, 1976. The content of minerals in algae were analyzed by Atometic Absorption Spectrophotometer.<br/> The results were as followed<br/> 1) The content of Iron and Nickel in green algae were abundant, and those of Lead, Nickel and Manganese in brown algae were low.<br/> 2) The content of Cadmium were in the range of 0.58-1.04ppm (average: 0.85ppm) in green algae, 0.32-2.l0ppm (average: 1.08ppm) in brown algae and 0.54-1.70ppm (average: 1.04ppm) in red algae. The content of Cadmium were in the range of 0.3-0.6ppm in laver, Porphyra tenera, sea mustard, Undaria pinnatifida, and tangle, Laminaria japonica, but its content was lower than those expected.<br/> 3) The content of Lead were in the range of 0.67-1.40ppm (average: 1.03ppm) in green algae, 0.60-1.00ppm (average: 0.82ppm) in brown algae, 0.56-2.40ppm (average: 1.28ppm) in red algae and its content in algae were lower than in fish and shellfish.<br/> 4) The content of Copper were in the range of 10.8-24.2ppm (average: 18.95ppm) in green algae, 7.4-24.6ppm (average: 18.16ppm) in brown algae, 6.4-31.2ppm (average: 19.94ppm) in red algae and those content were considerably abundant except for some algae.<br/> 5) The content of Nickel were in the range of 5.4-16.6ppm (average: 9.1ppm) in green algae, l.0-4.4ppm (average: 2.32ppm) in brown algae and 0.7-4.6ppm (average: 2.59ppm) in red algae.<br/> 6) The content of Iron were in the range of 686.4-1159.0ppm (average: 916.5ppm) in green algae, 131.0-499.2ppm (average: 310.16ppm) in brown algae and 156.0-530.4ppm (average: 248.2ppm) in red algae. Especially, that of Iron in green algae showed higher value than in any other.<br/> 7) The content of Manganese were in the range of 48-221ppm (average: 157.25ppm) in green algae, 12-65ppm (average: 41ppm) in brown algae and 72-162ppm (average: 121ppm) in red algae. Especially, that of Manganese in brown algae showed lower value than in any other.<br/> 8) The content of Zinc were in the range of 191.3-451.1ppm (average: 290.05ppm) in green algae, 89.9-374.2ppm (average: 202.64ppm) in brown algae and 106.4-281.4ppm (average: 188.93ppm) in red algae.<br/> 9) The content of Magnesium were in the range of 0.48-1.83% (average: 1.27%) in green algae, 1.04-1.71% (average: 1.21%) in brown algae and 0.42-1.24% (average: 0.097%) in red algae.<br/> 10) The content of Fluorine were in the range of 29.2-92.7ppm (average: 53.03ppm) in green algae, 33.3-43.5ppm (average: 39.18ppm) in brown algae and 32.4-59.0ppm (average: 44.84ppm)<br/> in red algae.

A Study on Reliability and Safety Calculation of vital system in Railway Signalling System

LEE Jong-Woo(이종우),JOUNG Eui-Jin(정의진),HWANG Jong-Gyu(황종규),SHIN Duck-Ho(신덕호) 대한전기학회 2000 대한전기학회 학술대회 논문집 Vol.2000 No.7

장장근건과 전완유리피판술을 이용한 성대ㆍ인두재건술

이종우(Jong Woo Lee),박경호(Kyung Ho Park),이근석(Keun Suk Lee),조승호(Seung Ho Cho),김민식(Min Sik Kim) 대한두경부종양학회 2001 대한두경부 종양학회지 Vol.17 No.2

Background and Objectives: As the laryngopharyngeal cancer is usually found at a advanced stage, it is difficult to get a wide surgical margin that preserves functional aspect and that is oncologically safe simultaneously. There were many operative technique to fulfill this principle, but none were satisfactory. Recently there were some reports about glottic and pharyngeal reconstruction using radial forearm free flap(RFFF) with palmaris longus tendon, which provided satisfactory oncologic and functional results. We attempted to perform this technique and to test usefulness at patients of laterally localized laryngopharyngeal tumor. Materials and Methods: Three patients were reconstructed glottis and pharynx using radial forearm free flap with palmaris longus tendon. Two hypopharyngeal cancer (T2N0M0) patients were performed wide vertical hemilaryngopharyngectomy and one supraglottic cancer(T2N0M0) patient was performed horizontovertical laryngopharyngectomy. Deglutitional function was evaluated with modified barium swallow and speech function was evaluated by speech pathologist. Results: Mean follow-up time was 29.3 months. There were no cancer recurrence. Their speech was satisfy-actory at social communication and oral feeding. They all have a complete oral nutrition from 26 days to 53 days. Decanulation time was from 71 days to 30 months. Conclusion: Glottic and pharyngeal reconstruction with radial forearm free flap could be accepted as a promising technique which offers a wide resection margin but satisfactory functional result in lateralized laryngohypopharyngeal cancer patients.

규칙적인 운동과 F1, 6DP의 투여가 유산소지구력 및 항산화능에 미치는 영향

이종우(Lee Jong-Woo),하민수(Ha Min-Soo),이천호(Lee Cheon-Ho),박석(Park Sok) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.3

This study investigated effects of regular exercise and F1, 6DP supplement on endurance exercise capacity and antioxidant capacity in rats. Male Sprague-Dawley rats were randomly assigned to one eight groups(n=8): sedentary control group, exercied control group, F1, 6DP supplemented group and exercised F1, 6DP supplement group. F1, 6DP supplemented group, and exercsied F1, 6DP supplement group. Rats were fed experimental diets supplemented with F1, 6DP at the level of 10 ㎎/㎏/day for 4 weeks. Rats of exercised control group, F16-DP supplemented group and exercised F1, 6DP supplement exercised groups performed swimming exercise training at 60 min/day for 4 weeks. Exhaustive swimming time(endurance exercise capacity) was significantly increased in exercised control group, F1, 6DP supplemented group, and exercised F1, 6DP supplement group compared to the value for sedentary control group. Total antioxidant capacity was significantly higher in exercised control group, F1, 6DP supplemented group, and exercised F1, 6DP supplement group than sedentary control group. Free radical release was significantly lower in exercised control group FI, 6DP supplemented group, and exercised F1, 6DP supplement group than sedentary control group, These results indicate that F1, 6DP appear to be effective in enhancing enduranced exercised performance and antioxidant capacity of trained rats.

cPSD 시스템에 대한 각 단계별 RAMS 적용에 대한 연구

이무호(Lee Moo Ho),이종우(Lee Jong Woo) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월

지하철 승강장에 승객의 안전과 편의를 위하여 PSD(Platform Screen Doors, 승강장 스크린도어)가 많은 역사에 설치되고 있다. 이에 따라 PSD의 안전에 대한 관심이 증대되고 있다. PSD시스템은 안전장치로써 안전성과 신뢰성 보증이 필요하다. 이를 위하여 RAMS 표준인 EN50128[Railway applications - The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS)]에 따라 PSD 시스템에 대한 RAMS 목표를 설정하고 RAMS 활동을 실시하였다. RAMS 목표를 설정하고 RAMS 목표를 달성하기 위하여 각 단계별(설계, 제작, 설치, 시험과 시운전 그리고 운용)로 안전 표준에 따라 RAMS 활동을 수행하고 있다. 본 논문에서는 각 단계별 적합한 RAMS 활동과 그 결과를 제시한다. For the convenience and safety of passengers, PSD(Platform Screen Door) has been installed and operated at many subway stations. Consequently, the interests about PSD safety have been increased. PSD system, as a safety system, is needed the reliability and safety verification. For the safety assurance of the PSD system, SeoulMetro applies RAMS(Reliability, Availability, Maintainability and Safety) program to the PSD system according to EN50128[Railway applications - The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS)]. SeoulMetro set RAMS targets. For the achievement of the RAMS targets and requirements, SeoulMetro has conducted RAMS activities in the phase of design, manufacturing, installation, test & commissioning, and operation according to the safety standards. This paper presents appropriate RAMS activities for PSD system and their results.

성인에서 연부조직 석회화가 동반된 피부근염

김종수 ( Jong Soo Kim ),정재욱 ( Jae Wook Jung ),송현주 ( Hyun Ju Song ),김정은 ( Jung Eun Kim ),이종우 ( Jong Woo Lee ),최정희 ( Jeong Hee Choi ),이영목 ( Young Mok Lee ),서유진 ( Yoo Jin Suh ),남동호 ( Dong Ho Nahm ),박해심 ( Ha 대한류마티스학회 2003 대한류마티스학회지 Vol.10 No.1

Dermatomyositis is a disease of non-pyogenic inflammation of skin and muscles in which tissues and cells are damaged by pathogenic autoantibodies and immune complexes. Diffuse subcutaneous and interstitial muscular calcinosis is well recognised and common in childhood dermatomyositis. However, soft tissue calcification in a patient with adult onset dermatomyositis has been rarely reported. We have experienced a patient with adult onset dermatomyositis who had diffuse subcutaneous tissue calcification on hands, arms, chest, abdomen and buttocks.

한랭기후환경에 따른 철도 통신·신호시스템 온도 제시

박호근(Ho-Geun Park),이준욱(Jun-Wook Lee),이종우(Jong-Woo Lee),최규형(Kyu-Hyoung Choi) 한국철도학회 2021 한국철도학회 학술발표대회논문집 Vol.2021 No.6