석괴댐의 축조 중 내부 침하 거동 평가

서민우,김용성,Seo, Min-Woo,Kim, Yong-Seong 한국농공학회 2010 한국농공학회논문집 Vol.52 No.4

The purposes of this research are to analyze the internal settlement behavior of Concrete Faced Rockfill Dam (CFRD) typed 'D dam' and to evaluate the stability of the 'D dam' during dam construction using internal settlement measurements and results of numerical analysis. The field measurements were obtained during dam construction period. The numerical analysis was also carried out for the same construction period. The numerical analysis focused mainly on prediction of stress and displacement behavior of 'D dam' during dam construction stage using input parameters obtained from laboratory tests, i.e. large triaxial tests. The behavior of 'D dam' was evaluated to be stable from comparing the results of field measurements and numerical analysis. A simple empirical equation is also presented to predict final settlement at the completion of dam construction, using settlement measurement monitored during dam embankment.

원형 봉합기를 이용한 위십이지장연결술 시 단측연결과 단단연결의 비교

서민우,김용진,송단,강길호,조규석,이문수,허경열,김재준,Seo, Min-Woo,Kim, Yong-Jin,Song, Dan,Kang, Gil-Ho,Cho, Gyu-Seok,Lee, Moon-Soo,Hur, Kyung-Yul,Kim, Jae-Joon 대한위암학회 2009 대한위암학회지 Vol.9 No.2

목적: 원형 봉합기를 이용한 위십이지장연결술의 가장 대표적인 두 가지 방법(단측연결과 단단연결)의 수술 후 결과를 토대로 그 장단점을 확인하고자 본 연구를 고안하였다. 대상 및 방법: 2005년 3월부터 2008년 2월까지 순천향 대학병원에서 위암 진단 하 위십이지장 연결술을 시행한 134명을 대상으로 하였다. 2005년 3월부터 2006년 9월까지는 연속적으로 단측연결을(단측군, 76명), 2006년 11월부터 2008년 2월까지는 연속적으로 단단연결을 시행했다(단단군, 58명). 두 군을 대상으로 전향적 자료 수집을 통해 수술후 경과를 비교 분석하였다. 결과: 두 근간 모든 임상병리학적 요인에 차이가 없었다. 평균 수술시간은 단측군이 157분($\pm56$), 단단군이 150분($\pm49$)이었으며, 입원기간의 경우 단측군이 10.5일($\pm3.5$), 단단군이 9.4일($\pm2.9$)로 이 역시 두 군간에 차이는 없었다. 합병증과 관련해서 전체적으로 단측군이 15예(19.7%), 단단군은 8예(13.8%)에서 발생하였으며(P=0.489), 연결부위 관련해서 단측군에서 출혈이 2예 및 협착이 2예 있었으며, 단단군의 경우 출혈이 2예에서 있었다(P=0.698). 결론: 원형 봉합기를 이용한 위십이지장연결술은 두 방법 모두 기술적으로 용이하며 안전하였다. 통계적 의의는 없었지만, 연결 부위 협착과 관련해서는 단측군에서만 2예 발생하여 단단군이 더 나은 경향을 보였다. Purpose: The use of automatic circular staplers for gastroduodenostomy after distal gastrectomy is now widely accepted. We compared the clinical outcomes of two different methods. Materials and Methods: Between March 2005 and February 2008, 134 patients with gastric cancer underwent distal gastrectomies. Seventy-six consecutive patients received end-to-side gastroduodenostomies (ES) between March 2005 and September 2006. The remaining 58 consecutive patients received end-to-end gastroduodenostomies (EE) between November 2006 and February 2008. We analyzed the surgical outcomes between the two groups (ES versus EE) on the basis of prospectively collected data. Results: Among the clinical factors, there were no differences between the two groups. The overall complication rates were 19.7% in the ES group and 13.8% in the EE group (P=0.489). With respect to anastomosis-related complications, 2 cases had bleeding and 2 cases had stenoses in the ES group, while 2 cases in the EE group had bleeding. Re-operation was needed in the case of intraluminal bleeding in the ES group. There were no mortalities in our study. Conclusion: The two methods for gastroduodenostomy were safe and technically feasible. Although there was no statistical difference in the overall complications, including anastomosis-related complications, we demonstrated better outcomes with respect to anastomotic stenosis in the EE group.

12주간 초등학생 태권도 수련생의 간접겨루기 참여가 주의집중 관련 뇌파 활성도에 미치는 영향

서민우(Seo, Min-Woo),박준영(Park, Joon-Young),양대승(Yang, Dae-Seung) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.6

The objective of this study aims to find the influence of participation of elementary school student trainees in indirect sparring of Taekwondo on attention-concentration-related brain wave. The object of the study was the elementary school students whose ages are 11 to 13and the random assignment was implemented into the exercise group of 15 members and the control group of 15 members, and the exercise group performed the indirect sparring for 60 minutes each time with frequency of 3 times a week during 12 weeks and RPE 11-13 of strength was given at 1 to 3 level of training intensity. The brain waves which are related with the concentration such as Theta wave, SMR wave, Low Beta wave, Beta wave and High Beta wave were measured for 5 minutes according to unipolr lead method by attaching the electrodes onto Fz and Cz parts of the objects that are frontal lobe of brain that is used much for measuring concentration as the pretest. As the results of this study, the activity of SMR wave that is related with the concentration showed the significant increase in the exercise group after the participation in indirect sparring training and the activities of Theta and High Beta waves that are related with attention deficit and conduct disorder showed the significant decrease in the exercise group. And, the activities of Low Beta and Beta waves that are related with the stress showed the significant decrease in the exercise group. Based on above results, it can be recognized that the participation of elementary school student trainees in indirect sparring is effective for the improvement of concentration-related brain waves and it is considered that such participation in the exercise would be helpful for the improvement of concentration, release of stress and improvement of attention.

다양한 시험법에 의해 산정된 토목섬유 사이의 접촉면 전단강도 비교

서민우(Seo Min-Woo),오명학(Oh Myoung-Hak),윤현석(Yoon Hyun-Suk),박준범(Park Jun-Boum) 대한토목학회 2006 대한토목학회논문집 C Vol.26 No.2

The shear behavior of four different interfaces consisting of four types of geosynthetics was investigated, and both static and dynamic test for the geosynthetic interfaces were conducted. The monotonic shear experiments were performed by using an inclined board apparatus and large direct shear device. The interface shear strength obtained from the inclined board test was compared with calculated values from large direct shear tests. The comparison results indicated that direct shear tests show high possibility to over-predict the shear strength in the low normal stress range where direct shear tests are not performed. Curved failure envelopes were also obtained for interface cases where two static shear tests were conducted. By comparing the friction angles measured from three tests, i.e. direct shear, inclined board, and shaking table test, it was found that the friction angle might be different depending on the test method and normal stresses applied in the research. Therefore, it was concluded that the testing method should be determined carefully by considering the type of loads and the normal stress expected in the field with using the geosynthetic materials installed in the site. 4종류 토목섬유 조합으로 구성된 4가지 토목섬유 접촉면의 정적 및 동적 하중 상태에서의 전단거동을 평가하였다. 정적 하중 조건에서 경사판 시험과 직접전단 시험을 수행하였으며, 두가지 시험 결과를 상호 비교하였다. 비교 결과 직접전단 시험의 경우, 직접전단 시험이 수행되지 아니한 낮은 응력 단계에서의 접촉면 전단강도를 실제보다 크게 예측할 가능성이 높은 것으로 나타났다. 또한 정적상태에서 수행된 두 종류 시험을 통해 산정된 전단강도를 이용하여 곡선형태의 파괴 포락선식을 구할 수 있었다. 한편 정적 전단강도와 진동대시험을 통해 동적 하중 상태에서 구한 접촉면 전단강도를 비교하여, 하중 특성과 가해진 응력 크기에 따라 각기 다른 마찰 특성을 보임을 확인하였다. 따라서 토목섬유 사이의 접촉면 전단강도를 정확히 평가하기 위해서는 실제 현장에 설치되는 재료를 대상으로 예상되는 응력의 크기와 하중 유형을 고려하여 시험이 수행되어야 할 것이다.

Senior Citizens' Image Preference for Interior Design Styles

Seo, Min-Woo(서민우),Jeong, Yoo-Na(정유나) 한국실내디자인학회 2012 한국실내디자인학회논문집 Vol.21 No.6

As Korea has rapidly entered the aging society, the Korean government and academia are currently undergoing many researches on senior citizens. There also has been an increase in senior citizens’ awareness on the importance of spatial designs that reflect the newly emerged needs brought out by their psychological and emotional changes as well as their physical aspects. Therefore, the purpose of this research is to propose a model for senior citizens’ image preference to be adopted in future developments for senior-friendly spatial designs. A literature review and a questionnaire survey were implemented as research methods. The questionnaire survey was conducted at two senior welfare centers located in Seoul and Ansan and two disparate senior colleges, on the subjects of 86 senior citizens aged 60 and older. 7 styles of Romantic, Classic, Country, Modern, Natural, Casual, and Traditional were chosen for the study and the realms to apply the image preference were divided into Space, Element1 and Element2. For Space, its subcategories have been restricted to living room and bedroom while color, furniture and lighting for Element1 and material, pattern and props for Element2. Survey results were statistically analyzed for the correlation among socio-demographic factors of senior citizens, spaces and the elements. The study result showed that older age and men tended to prefer the modern style than younger age or women, and younger women preferred the romantic style. For the color preference in Element1, older men preferred the classic style while women preferred the romantic style. And, for the furniture preference, men with higher income preferred the natural style while women preferred the romantic style. For the pattern preference in Element2, younger people preferred the casual style and it showed that the housing type was the main reason for their preferences. Therefore, the image preference according to their age and gender shall be taken account of as the most important factors when designing environments for senior citizens.

국방응용체계를 위한 상호운용성 인증 프레임워크

서민우(Min Woo Seo),김영도(Young Do Kim),서형준(Hyung Jun Seo),손태종(Tae Jong Son) 한국정보과학회 2006 정보과학회지 Vol.24 No.9

카메라 기반 분석 시스템의 지연 시간 측정 기법

서민우(Min-Woo Seo ),강석주(Suk-Ju Kang) 대한전기학회 2017 대한전기학회 학술대회 논문집 Vol.2017 No.7

말의 정치, 사물의 정치: 조너던 스위프트의 "과학" 비판과 근대성

서민우 ( Min Woo Seo ) 한국18세기영문학회 2010 18세기영문학 Vol.7 No.2

This paper aims to reread Jonathan Swift`s literary criticism leveled at `science` spreading from his early works such as Discourse concerning the Mechanical Operation of the Spirit and A Tale of a Tub to Gulliver`s Travels in the emerging contexts of late seventeenth and early eighteenth century English experimental philosophical practices on the one hand, and the battle of the books between ancients and moderns on the other. The Scientific Revolution saw the rise of a new natural philosophical form of life, that is, experimental philosophy, which required and resulted in the reconfiguration of social organization among the political and religious establishment as well as the relevant philosophers. The change and its aftereffects, therefore, were never confined to the problem of scientific knowledge; it was involved in the issue of social order as well. This paper, in this vein, tries to put back in the broader context of his contemporaries` religio-political scientific practices, without separating them, Swift`s several primary texts of his oeuvre, and give a fresh reading of them which includes a novel interpretive thread to interweave the third part of Gulliver`s Travels in particular. This reading would also shed new light on an unrecognized consequence of the battle between ancients and moderns, and in so doing, offer a clue to reframe a series of controversies caused by the so-called `Science War` in the 1990s and after.

국내 전방부대와 해외 파병부대의 질병발생에 대한 고찰

서민우 ( Min Woo Seo ),김문수 ( Moon Soo Kim ),박대현 ( Dae Hyeon Park ),권순하 ( Soon Ha Kwon ),우찬명 ( Chan Myong Woo ),최진욱 ( Jin Wook Choi ),이본 ( Bonn Lee ) 국군의무사령부 2016 대한군진의학학술지 Vol.47 No.1

Objectives; The aim of the research is designed to provied a comparison of the disease occurrence rate between the frontline troops in South korea and the overseas dispatched United Nation (UN) troops for according medical managemeent. Methods; Total six months period of medical records documented from 01/05/2015 to 31/10/2015 were utilized to give a contrast of the disease outbreaks by the front line troop with the overseas dispatch troops. Results; Based on the comparison data following results are shown as below; First of all, Frequency of practicing medical unit is reported higher in the overseas dispatch troops group. Second, No difference has been confirmed on the patient distribution rate of according medical specialties between the two groups. Third, Most frequent conditional diagnosis lists are sprain & strain, upper repiratory infection (URI), allergy, contusion, dental care in order for the front line troops. However, in the overseas dispatched troops group, minor injury, dental care, sprain & strain, URI, and entero-colitis were noted consecutively. Forth, Minor heat related disease is more fequent in the overseas grous whereas more serious presentation is orientated in the frontline group in South korea. Fifth, Infectious disease outbreak more frequently in the overseas dispatch troops especially focusing on gastro-intestinal symptoms. Conclusions : This finding offers a guiding reference for understanding the speciality and specificity on the disposition of the disease outbreak rate between the overseas dispatch UN troops and the frontline Korean troops.

대형 전단시험에 의한 조립재료의 전단강도 평가

서민우(Min-Woo Seo),김범주(Bum-Joo Kim),하익수(Ik-Soo Ha) 한국지반환경공학회 2008 한국지반환경공학회 학술발표회논문집 Vol.2008 No.-