복합만성질환자의 의료이용 과정에 관한 근거이론적 탐색

유수영(Yu, Soo-Young),유명순(You, Myoung Soon) 대한근관절건강학회 2021 근관절건강학회지 Vol.28 No.2

Purpose: This study examined: 1) what it meant for patients to have multimorbidity 2) how they manage their illness using health care facilities, and 3) what contextual backgrounds exist regarding the health care system. Methods: This qualitative research obtained individual in-depth interviews from 22 patients. Participants were selected by purposive sampling among those who saw physicians more often than the national average from the 2013 medical-claim data. The transcribed data were analyzed using Ground theory. Results: Multimorbidity patients suffered from chain-like serial symptoms and pain without a breakthrough. They expressed themselves as indeed patients among patients, my body is a general hospital, and an incompletely normal person. There was a demand to resolve the anxiety arising from the situation in which the body keeps getting sicker without showing any signs of recovery. In a state of reduced social support and a lack of trust in the doctor, their desire to be healed led them to receive a temporary relief through dependence on medical institutions. Conclusion: This research recognized the desire of multimorbidity patients to seek temporary relief through dependence on medical institutions. A more patient-centered directed care plan, specific to the needs of the patients with multimorbidity is required.

내식합금 (CRA) 동향 및 해양 파이프라인 설계 적용에 대한 고찰

유수영(Su-Young Yu),최한석(Han-Suk Choi),이승건(Seung-Keon Lee),김도균(Do-Kyun Kim) 한국해양공학회 2014 韓國海洋工學會誌 Vol.28 No.1

Offshore fields are increasingly important for the development of offshore resources due to the growing energy needs. However, an offshore field for oil and gas production has difficult development conditions, e.g., high temperature, high pressure, sweet/sour compositions of fluids, etc. Corrosion is one of the biggest issues for offshore pipeline engineering. In this study, a Corrosion Resistant Alloy (CRA) pipe for corrosion prevention was investigated through its global demand and trends, and three types of CRA pipelines were introduced with detailed explanations. The usefulness of CRA was also evaluated in comparison to a carbon steel pipeline in terms of the structural strength, cost, and other factors. Offshore pipeline engineering, including mechanical design and verification of the results through an installation analysis based on numerical software, was performed for the carbon steel type and solid CRA type. The results obtained from this study will be useful data for CRA pipeline designers and researchers.

분자동역학 시뮬레이션을 이용한 Al₂O₃/epoxy 나노복합재의 물성해석

유수영(Suyoung Yu),양승화(Seunghwa Yang),조맹효(Maenghyo Cho) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

Alumina(Al₂O₃) particles reinforcing effects of cross-linked epoxy resin composites was investigated using molecular dynamics simulation. For considering cross-linked effects in the simulations the epoxy monomer unit of the matrix was made of Diglycidyl Ether of Bisphenol F(EPON862<SUP>®</SUP>) cured by Triethylenetetramine(TETA<SUP>®</SUP>). To investigate the size effects of particles in composites, the unite cells with various sizes(l~20㎚ diameter) alumina particles were considered. For particle size larger than 20nm micromechanical method using the effective interface model was applied. When the size of alumina particle decreased, the reinforce effects was more significant.

영암이야기꾼 백흥운의 이야기판 전승양상과 구성방식

유수영(Yu, Su-young) 안동대학교 민속학연구소 2013 民俗硏究 Vol.0 No.26

설화는 이야기하는 사람과 듣는 사람 사이에 존재한다. 그러므로 설화의 전승 상황과 전승력 등의 문제가 함께 해명되어야 설화의 존재양식을 온전하게 포착할 수 있다. 이 글에서는 영암이야기꾼 백흥운의 구연된 설화내용을 통해 그가 살아온 삶과 연결된 이야기판의 전승양상과 구성방식을 살펴보고자 했다. 백흥운에게 들은 이야기구성방식은, 모친에게 들은 효ㆍ덕행(孝.德行)담, 동네사랑방에서 들은 호랑이 동물담, 그리고 거주하는 마을에서 들은 지역전설 등이 한데 어울러져 새로운 이야기구성방식으로 전승되고 있었다. 모친이 강조하던 주제가 그가 사랑방에서 들었던 호랑이 이야기, 영암의 지명, 풍수, 인물 전설 등 그의 이야기 속에 관념적으로 등장했다. 이것은 이야기꾼들이 어떤 방식으로 자기 정체성을 이야기구성에 드러내는지 살펴볼 수 있다. 이것은 영암이야기꾼 백흥운의 생활 속에서의 윤리관과 이야기 속의 윤리관이 일치하여 그의 현재 삶에도 영향을 주고 있음을 확인할 수 있다. In this study, we know the transmission and composition of traditional culture of storyboard through the elderly man’s storytelling. Also, we understand that this story is associated with life of the old man who he lives in Yeongam, his name is Baek Hwongwoon in this story’s speakers. As I was listening to speaker’s story, I could understand that his severeal another story together became new one. The new srory was influenced by the environment he lived. He told me new story that was influenced by several another story-a story he heard from his mother, a story of scary tiger"s story in the Sarangbang(reception room in a house for male guests),the legend had been handed down from the remote past. This is very fabulous on me because I could infer from his story about lives of Korean"s ancestors. I can found speaker’s identity in his storytelling that one is practice virtue and the other is confucian concept “hyo” or showing respect for one’s elders.

수분 흡수율에 따른 에폭시 나노복합재의 물성 변화 해석

유수영(Suyoung Yu),양승화(Seunghwa Yang),최준명(Joonmyung Choi),조맹효(Maenghyo Cho) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11

In this study, by analyzing structural change and degradation of material properties which are induced by the cross-linking and moisture absorption, hygrothermal effects on epoxy materials are investigated through molecular dynamics simulation. To verify the effect of cross-linking ratio and particle size on hygrothermal degradation, three different cross-linked states are considered in epoxy matrix and silica nanoparticles of various sizes are contained in nanocomposites. To verify the mechanism of hygrothermal degradation, structural changes such as change of volume, density, and free volume, and diffusion of water molecules are analyzed.

비평형 분자동역학을 이용한 기계적 하중이 부여된 고분자재료의 열전도율 변화 해석

유수영(Suyoung Yu),양승화(Seunghwa Yang),조맹효(Maenghyo Cho) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

The design of the polymetric composites which have a desirable thermal property is one of important issues in composites materials. To verify the mechanism of thermal conduction, the non-equilibrium molecular dynamics simulation is applied to nylon6 polymer under the mechanical loading conditions such as extension, unloading and compression. During the mechanical loading process, structural ordering and disordering of polymer molecules are observed. When the nylon6 chain is aligned and have lager orientation order due to the mechanical loading, nylon6 polymer shows enhanced thermal conductivity on the deformed direction. The structure-property relationship obtained from this study can be a useful reference for the design of polymer-based nanomaterials and nanocomposites

유랑예인의 무(巫)업과 연희활동 -포장극단 연희자 활동을 중심으로-

유수영 ( Yu Su-young ) 남도민속학회 2017 남도민속연구 Vol.34 No.-

본 연구는 전통문화의 계승에 대한 논의를 무(巫)계 집안의 공연활동, 특히 그들이 활동했던 유랑연희단체였던 포장극단의 활동을 통해 그 양상을 살폈다. 20세기에도 여전히 무업이 문화의 전반에서 주목받는 상황에서, 무(巫)계 집안에서 태어나 현대의 시대적 흐름에 따라 다양한 형태의 공연콘텐츠를 만들어가고 있는 그들의 활동을 주목한 것이다. 이들이 속했던 포장극단은, 이전의 창극단, 여성국극단, 여성농악단에서 활동했던 연희자들의 주요 활동무대였다. 포장극단의 연희자들은 권번과 국악양성소에서 판소리와 연극을 배우기도 하고, 포장극단의 활동을 통해서 판소리를 배우고 연극을 익히며, 새로운 연희를 이어갔다. 이들은 무계 집안에서 태어나 무업을 잇던 후손들이 20세기에 무업의 전통양식을 바탕으로 다양한 형태의 공연콘텐츠로 발전한 현상과 맞물린다. 포장극단에서 활동했던 전남지역의 대표적 연희자로는, 진도 박석화 무계 후손으로 현재국가무형문화재 다시래기 보유자인 강준섭, 경남오광대와 무계후손으로서 현재 국가무형문화재 다시래기 전수조교인 김애선, 해남안초네 무계 후손으로서 전남무형문화재 판소리고법보유자 추정남 등이 있다. 이와 같이 포장극단에서 무계의 연희활동은 이례적인 것이 아니었다. 이들은 이후 다양한 예술 활동을 이어가면서 무형문화재로 지정되는 등, 현재까지 전문예인으로써 명맥을 이어오고 있다. 또한 이들이 참여한 포장극단은 대중들에게 큰 인기를 얻었다. 이은 무(巫)업을 통해 연희를 자연스럽게 체화한 후손으로서 그 역량과 기능을 이어받아, 20세기 시대적 흐름에 맞물려 변화하는 대중들의 관심을 끌 수 있는 요소들을 스스로 창작하였기 때문이다. 무업을 잇는 후손들은 포장극단에서 공연활동을 경험하면서 새로운 연희활동을 이어올 수 있었다. The present study, among the discussions about the succession of traditional culture, has examined the theatrical activity and characteristic of descendants who continued the shamanic profession and its pattern through the activity by the theatrical company on the road who was the wandering theatrical group. Under such a situation that the shamanic profession still attracted an attention in overall culture even in 20^th century, the present study has paid attention on the activity of those who were born in the line of shaman to have made a performance content of various types. The theatrical company on the road where they belonged was the major activity stage by theatrical performers who were active in previous Changguk Theatrical Company, Women`s Changguk Theatrical Company, and Women`s Nongak Theatrical Company. Theatrical performers in the theatrical company on the road used to learn Pansori and play at the gisaeng call-office and the training center for Korean traditional songs or learn Pansori through the activity by the theatrical company on the road and mastered the play to continue new theatrical performance. These activities link to the phenomenon developed to a performance content of various types by the descendents who were born in the shaman family to have continued the shamanic profession based on the traditional pattern of shamainc profession in 20^th century. Representing theatrical performers in Jeonnam area who were active in the theatrical company on the road are Kang Joon Seop who is the descendant of shaman line of Jin-do Park Seok Hwa and the holder of Dashiraegi (the funeral play) which is currently the national intangible cultural asset, Kim Ae Sun who is the descendant of Gyeongnam Okwangdae (five clowns) and shaman line and the transfer assistant of Dashiraegi, and Chu Jeong Nam who is the descendant of shaman line of Haenam An Cho Ne and the holder of drum beat method for Pansori which is Jeonnam`s intangible cultural asset. Such theatrical activities by the line of shaman in the theatrical company on the road were not exceptional. Later, these people continued various art activities and were appointed for the intangible cultural asset, and continued its tradition as a professional theatrical performer until now.

학업을 병행하는 임상간호사의 스트레스와 자기효능감의 관계에서 근무년수의 조건부 효과 및 스트레스 양상: 혼합연구방법의 적용

유수영(Yu, Soo-Young),서은영(Suh, Eunyoung E.) 한국성인간호학회 2019 성인간호학회지 Vol.31 No.3

계면 결합력과 나노튜브의 응집에 따른 나노튜브/고분자 복합재의 탄소성 거동 예측에 대한 연구

양승화,유수영,류정현,조맹효,Yang, Seunghwa,Yu, Suyoung,Ryu, Junghyun,Cho, Maenghyo 한국전산구조공학회 2013 한국전산구조공학회논문집 Vol.26 No.6

본 연구에서는 탄소나노튜브와 폴리프로필렌 기지 간 계면결합력과 나노튜브의 국부적 응집에 따른 나노복합재의 탄소성 거동 변화에 대한 파라메트릭 연구를 수행한다. 나노복합재의 탄소성 거동 예측을 위해 분자동역학 전산모사를 수행하고, 분자동역학 결과와 Mori-Tanaka 모델을 적용한 비선형 미시역학 모델을 연계하여 나노복합재 내 흡착계면의 탄소성 거동을 역으로 도출하는 2단계 영역분할 기법을 적용하였다. 미시역학 모델에서는 시컨트 계수방법을 Mori-Tanaka 모델에 적용하여 나노복합재의 비선형 거동을 예측하는 방법을 적용하였으며, 나노튜브와 기지 간 재료계면의 불완전 결합을 고려하기 위해 변위 불연속 조건을 적용하였다. 흡착영역을 고려한 미시역학 모델을 통해 흡착계면의 유무 및 재료계면 결합력 변화 그리고 나노튜브의 국부적 응집현상에 따른 나노복합재의 응력-변형률 관계를 예측하였다. 그 결과 나노튜브의 국부적 응집이 나노복합재의 강화효과를 저하시키는 가장 중요한 변수임을 확인하였다. In this research, a paramteric study to account for the effect of interfacial strength and nanotube agglomeration on the elastoplastic behavior of carbon nanotube reinforced polypropylene composites is performed. At first, the elastoplastic behavior of nanocomposites is predicted from molecular dynamics(MD) simulations. By combining the MD simulation results with the nonlinear micromechanics model based on the Mori-Tanaka model, a two-step domain decomposition method is applied to inversely identify the elastoplastic behavior of adsorption interphase zone inside nanocomposites. In nonlinear micromechanics model, the secant moduli method combined with field fluctuation method is used to predict the elastoplastic behavior of nanocomposites. To account for the imperfect material interface between nanotube and matrix polymer, displacement discontinuity condition is applied to the micromechanics model. Using the elastoplastic behavior of the adsorption interphase zone obtained from the present study, stress-strain relation of nanocomposites at various interfacial bonding condition and local nanotube agglomeration is predicted from nonlinear micromechanics model with and without the adsorption interphase zone. As a result, it has been found that local nanotube agglomeration is the most important design factor to maximize reinforcing effect of nanotube in elastic and plastic behavior.

나노입자의 크기효과와 체적분율 효과를 동시 고려한 나노복합재의 멀티스케일 브리징 해석기법에 관한 연구

양승화,유수영,조맹효,Yang, Seung-Hwa,Yu, Su-Young,Cho, Maeng-Hyo 한국전산구조공학회 2009 한국전산구조공학회논문집 Vol.22 No.4

본 연구에서는 분자동역학 전산모사와 미시역학 모델을 이용하여 나노입자의 체적분율이 높은 경우 나노 입자의 크기효과와 체적분율 효과가 나노복합재의 기계적 물성에 미치는 영향을 효과적으로 묘사할 수 있는 순차적 브리징 해석기법을 제안하였다. 체적분율이 12%로 고정된 상태에서 나노입자의 크기변화에 따른 영률과 전단계수를 분자동역학 전산모사를 통해 예측한 후, 이를 연속체 모델에서 구현하기 위해 다중입자모델을 적용하였다. 나노입자의 크기효과를 반영하기 위해 입자와 기지 사이에 유효계면을 추가적인 상으로 도입하였고, 12%의 체적분율 조건에서 나타날 수 있는 체적분율 효과는 나노복합재를 둘러싸는 가상의 영역인 무한영역의 물성값의 변화를 통해 조절되도록 하였다. 유효계면과 무한영역의 물성을 입자의 반경에 대한 함수로 근사한 후 다양한 입자의 크기에서 나타나는 나노복합재의 물성변화의 예측이 가능하도록 하였다. 제안된 브리징 해석기법의 적용을 통해 분자동역학 해석결과와 잘 일치하는 결과를 연속체 모델에서 효율적이고 정확하게 얻을 수 있었다. 또한 유효계면의 두께와 물성 변화가 나노복합재의 기계적 물성에 미치는 영향을 고찰하였다. In this study, an efficient sequential bridging method to characterize both the particle size effect and concentration effect on the mechanical properties of nanocomposites at high volume fraction is suggested through a molecular dynamics(MD) simulations and micromechanics of composites materials. The Young's modulus and the shear modulus of the nanocomposites at various particle radius and at 12% volume fraction were obtained from MD simulations and multi-inclusion model was adopted to describe both modulus in continuum model. In order to describe the particle size effect, an additional phase, effective interface, was adopted as characteristic phase and the non-dilute concentration effect which appears at 12% volume fraction was describe via the variation of the elastic modulus of the infinite medium. Both the elastic modulus of the interface and infinite medium were fitted into functions of particle radius for the applicability of the present bridging method at various particle radii. Using the present bridging method the elastic modulus of the nanocomposites was efficiently obtained with accuracy. In addition, the effect of the interface thickness and modulus on the elastic modulus of the nanocomposite was investigated.