비선형 연립방정식의 해를 이용한 캡슐형 무선 내시경 모듈의 위치 추적 방법

남혜원,이종학,이정현,박희준,원철호,조진호 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

협동학습의 효과적 운영을 위한 멘토링 프로그램 적용 사례연구 - 수학 교과목을 중심으로 -

남혜원 한국문화융합학회 2022 문화와 융합 Vol.44 No.12

The purpose of this study is to apply a mentoring program to classes designed based on cooperative learning, to analyze changes in students' academic achievement and learners' mathematical attitudes, and to confirm the applicability of extracurricular activity programs. For this study, the basic academic ability evaluation and midterm test scores of 'Mathematics (1)' students are analyzed to form small groups, and the small groups solve tasks centered on mentors nurtured through the 'Mathematics Mentoring' program. As a result of the study, it was confirmed that the application of the mentoring program helped improve academic achievement and strengthen core competencies, and especially helped improve learning satisfaction by increasing class participation and concentration of students with insufficient basic academic ability.

교량건설방식에 따른 수학적 모델링의 변천과정 기술과 현수교 방정식의 수학적 연구의 흐름

남혜원,Nam, Hye-Won 한국수학사학회 2007 Journal for history of mathematics Vol.20 No.4

현수교는 기둥 설치가 용이하지 않은 환경에 적용할 수 있는 혁신적인 교량 건설 방법으로 사람들의 관심을 끌어왔다. 그러나 Tocoma Narrows Bridge의 붕괴이후 안전상의 문제가 제기되었으며, 많은 비용이 지불되는 교량 건설에 시행착오를 줄이고자 현수교 방정식에 대한 연구가 시행되었다. 이 논문에서는 다양한 현수교 방정식의 모델을 정리하여 현수교 방정식의 차후 연구 방향을 제시하고자 한다. It is well known that a suspension bridge may display certain oscillations under external aerodynamic forces. Under the action of a strong wind, in particular, a narrow and very flexible suspension bridge can undergo dangerous oscillations. The collapse of the Tacoma Narrows suspension bridge caused by a wind blowing at a speed of 42 miles per hour, is one of the most striking examples. In this paper, we study models describing oscillations in suspension bridges and known results.

여성 베이비부머들의 식생활 태도와 미래 식생활 요구도 조사

남혜원,명춘옥,박영심,Nam, Haewon,Myung, Choonok,Park, Youngsim 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.4

The purpose of this study is to examine female baby boomers' dietary habits and their attitudes together with their needs for future perspectives of dietary life. Our aim is to use these findings as a basic data when forecasting for food-related industries or policy making. A survey is being carried out for a total of 358 female baby boomers and analyzed by SPSS 12.0. The following is a summary of this study. The average age is 52.6 years old, most of them graduated from highschool (63.1%) and had a nuclear type of family (76.1%). Only 39.0% is composed of housewives, others had either full-time or part-time jobs. Self-assessment of stress is not so high and only 8.1% are dissatisfied with their lives. 38.2% are either overweight or obese in terms of BMI, and most of them are non-smokers (97.2%) or non-drinkers (63.0%). Their mean dietary habit scores are $70.6{\pm}11.8$, and the scores show significant relations with their education levels (p<0.01), monthly income (p<0.01), life satisfaction rates (p<0.001), stress levels (p<0.001), smoking habits (p<0.05), drinking habits (p<0.05), regular exercises (p<0.001) and regular health check-ups (p<0.05). The rate of skipping breakfast, lunch and dinner are 18.2%, 1.1%, 5.2% respectively. The main reason for skipping breakfast is the 'lack of time'. With regards to the frequency of grocery shopping, almost half of the subjects (55.7%) said '1~2 times per week' and bought mainly raw food sources such as vegetables, fruits, and meats. The majority of the subjects (91.3%) report that they cooked meals at homes, and took about 1 hour of time. The subjects also point out that cooking was a bothering task, and only 46.4% would prepare meals at home, while others would rather eat out or eat convenience foods. The main reasons for not wanting meal services in the elderly welfare facility are because they didn't want to live such places (48.4%) and the meals are tasteless (31.3%). As for delivery meal services, 60.1% are aware of it, and 39.9% would consider using it in the future. Factors to be considered when using the delivery meal service are sanitation (43.7%), nutrition (28.7%), taste (18.4%), price (6.3%), and brand name (2.9%). This study is expected to be used as useful information when developing food-related strategies for baby boomers in the future.

현교수 방정식에 관한 연구

남혜원 남서울대학교 2006 남서울대학교 논문집 Vol.12 No.-

A suspension bridge is an example of a nonlinear dynamic system, especially systems with the so called jumping nonlinearity. The fact that we deal with a serious and topical problem is demonstrated for example by the collapse of the Tacoma Narrow suspension bridge. So it would be very contributive to determine under what conditions a similar situation cannot occur and find out safe parameters of the bridge construction. The aim of our paper is to summarize several models describing the behavior of suspension bridge.

경로식당 이용 노인의 급식 만족도 조사

남혜원,이영미,명춘옥,이기완,박영심 대한지역사회영양학회 2000 대한지역사회영양학회지 Vol.5 No.1

This study was designed to determine the attitude and degree of satisfaction of recipients toward the meal service program for elderly people. Nine hundred and eight elderly people(male: 301, female: 607) were interviewed by trained personnel. The results were as follows. Forty two percent of them had no income and 43.8% of the respondents were supported economically by the government. Their main reasons for attending the free congregated meal program was economic hardship(37.9%) The channels of becoming aware of the free meal program were through their friends(33.4%) and the meal service centers were located in the respondents residence area(36.0%) Thus any other advertisement from local government of official channels about the free meal program were not effective for the elderly 26.9% of the respondents felt inconvenience in visiting the meal service centers because they had some difficulty in walking, 53.5% of them however answered that they didn t have any complains and were quite satisfied with the meal service. The average satisfaction score for the free meal service was 63.4(maximum score 75) As for each evaluation item respondents were highly satisfied with volunteers attitude in meal serving(4.58$\pm$0.65: maximum 5 point) The evaluation score of females was generally lower than that of males(p<0.05) Oncemore, respondents who were in lowere socio-economic classes were marked by having significantly lower satisfaction scores for the meal service compared with higher scocio-economic classes. For the welfare of elderly people, meal service programs should be extended to more elderly persons and developed considering the elderlys ecological factors.

발주자의 요구사항을 고려한 발주방식 선정 방법에 관한 연구

남혜원,안경환,김창교,이재석,전재열,Nam, Hye-Won,Ahn, Kyung-Hwan,Kim, Chang-Gyo,Lee, Jea-Sauk,Chun, Jae-Youl 한국건설관리학회 2009 건설관리 : 한국건설관리학회 학회지 Vol.4 No.3

현행 공공공사에서는 예산에 맞추어 공사를 진행하는 방식을 취하고 있기 때문에 발주자(발주기관)의 요구사항을 충분히 만족시키지 못하고 있다. 따라서 발주자의 요구사항에 맞춘 발주방식 선정에 관한 연구가 필요하다. 이에 본 연구에서는 우선, 발주방식의 정의 및 특성과 미국, 영국, 일본 등 국내 외의 발주시스템을 고찰하였다. 이를 통해 발주방식을 선정하기 위해서는 최고 가치를 지향해야 된다는 결론을 도달하였다. 최고 가치를 지향하는 발주방식을 선정하기 위해서는 가장 우선적으로 발주자의 주요요구사항인 비용, 품질, 일정에 대한 고려를 해야 한다. 이에 본 연구에서는 발주자의 주요요구사항인 비용, 품질, 일정의 상관관계를 분석하였으며, 이를 통하여 여러 가지 발주방식 중 성능발주, 대안발주, Turn Key, 사양발 주의 주요선정요인을 비용, 품질, 일정으로 분류하였으며, 이에 대한 발주방식 선정 방법을 제시하였다. Recently, operation of highway is the complex digital Infrastructure based on complicated IT. The application of IT is increasing more and more in digital Infrastructure. Though IT is very convenient, if unpredicted operating risk of highway occurs, widespread damage can be large. When operating risk of highway occurs, road users are out of smoothly-run service because of the operating interruption. This risk causes unpredicted operating management cost and additional maintenance cost. It will excess over the planned operating cost, which may leads to users's unsafety and operator's insolvency because of income loss. Until now, related studies to find out the risk are not sufficient. The purpose of this study is to suggest risk cost items and to estimate the reasonable risk cost by using simulation method in case of occurring the huge power failure at the operating digitalized highway. This study indicates the several plans to hedge against risk cost and the management of highway project. From now on, it will be used as basic data to confirm the soundness of operating system in Digital Infrastructure.

현수교 방정식에 관한 연구 : History and Modeling of the Suspension Bridge

남혜원 남서울대학교출판국 2006 남서울대학교 논문집 Vol.12 No.-

시니어의 건강한 여가생활을 위한 독서도우미 콘텐츠 제안

남혜원,오현주,최유미 디자인 여성학회 2009 디자인여성학연구 Vol.5 No.1

우리나라는 세계에서 가장 빠른 속도로 고령화가 진행되고 있는 나라이다. 고령화 사회에 도달한 만큼, 문화 전반에 걸쳐 노인층에 대한 지속적이고 체계적인 관심이 필요하다. 다양한 문화 프로그램을 갖춘 노인 복지시설이 200여 곳에 불과하고, 사회적으로도 관심과 지원이 부족한 현실 속에서 노인들을 문화 소외계층으로 만들지 않게끔 도울 수 있는 맞춤형 여가 프로그램의 개발이 시급하다. 본 연구는 많은 여가 프로그램들 중에서도 노인들의 노화과정에 긍정적 역할을 할 뿐만 아니라, 그들을 건강한 여가생활로 이끌어 줄 독서활동과 연관하여 진행하였다. 시중의 독서와 관련된 콘텐츠들의 장단점을 분석하고 타깃 노인층(시니어)의 인터뷰를 바탕으로 보다 실질적으로 유용한 독서 콘텐츠를 제안하였다. 현 제품들의 실태조사에서 시니어가 필요로 하는 스캔 및 확대 기능, 음성 변환, 문서 파일저장 등을 갖추지 않은 경우가 많은 것을 알 수 있었으며, 낭독 및 방문 서비스들은 부담감과 번거로움으로 인해 이용을 원치 않았다. 본 연구는 시니어 층을 대상으로 개발된 콘텐츠들의 부재를 바탕으로 현 콘텐츠들에서 그들의 니즈를 반영한 ‘실로암’을 제안한다. 본 연구에서는 현 독서 관련 콘텐츠들의 장단점 분석 및 FGI를 통해 시니어의 의견을 반영한 독서 콘텐츠의 제안을 중점적으로 전개하였으므로, 향후 연구에선 구체적으로 현실화하는 산업화(제품화) 단계에의 모색을 시도해야 할 것이다. Korea is one of the countries where old-age society is rapidly growing. As it reached to old-age society, consistent concern and systemized support is needed for the elderly in general culture. Welfare facilities for the aged are in a poor circumstance and are not sufficient for the old population so that development of customized leisure program for the elderly is significantly required. This study is concerned with the reading activity which can play a positive role in the aging process , and it is expected to be a guide the senior to a healthy leisure. Based on the analyzing merits and faults on reading contents in the market and the investigating preference research of senior users from the interview, this study is proposing useful and practical reading contents aimed at bringing improvement of the quality of life to the senior. Through the research on the products in the market, it was found that scanning, magnifying, audio filing and text filing were not all available even if they are significant functions of the products for seniors. Futhermore, seniors find face to face reading service and visit reading service vexatious and stressful. This study proposes 'Siloam' which reflects senior's requirements and needs standing on the lack of cultural contents for senior. This study involves analyzing merits and faults on reading contents and proposition based on senior's demand through FGI. This proposition tries to materialize concretely in future.

케이블에 의하여 매달려 있는 현수교 방정식의 발견과 연구의 흐름

남혜원,최규홍,Nam Hyewon,Choi Q-Heung 한국수학사학회 2005 Journal for history of mathematics Vol.18 No.2

현수교 방정식은 비선형 동역학 시스템 중 점프가 일어나는 비선형 부분을 갖는 대표적인 예이다. 터코마 내로스(Tacoma Narrows) 현수교의 붕괴 이후 현수교 유사한 조건에 대한 연구 및 현수교의 안정성에 대한 연구가 활발히 진행되었다. 이 논문에서는 현수교 방정식의 모델링과 해의 존재성 및 다중성 연구에 대하여 조사하였다. A suspension bridge is an example of a nonlinear dynamical system, especially systems with the so called jumping nonlinearity. The fact that we deal with a serious and topical problem is demonstrated for example by the collapse of the Tacoma Narrow suspension bridge. So it would be very contributive to determine under what conditions a similar situation cannot occur and find out safe parameters of the bridge construction. In this paper, we show various possibilities how to model the behaviour of suspension bridge. Then we introduce our own results concerning existence and uniqueness of time-periodic solutions.