편모가정 자녀의 적응에 관한 연구

김영희,김갑숙,최외선 ( Young Hee Kim,Gab Sook Kim,Wae Sun Choi ) 대한가정학회 1995 Human Ecology Research(HER) Vol.33 No.2

대학생의 장애 이해에 대한 태도 연구

김영희,Kim, Young-Hee 대한물리치료과학회 2002 대한물리치료과학회지 Vol.9 No.1

The present study focuses on the relation of the attitudes of university students to disabled by using modified disability factor scales(DFS, Siller). As for the attitude areas, it relies on the eight categories DFS provides. The 8 categories that specify each attitude area are: generalized rejection, distressed identification, inferred emotional consequences, imputed functional limitation, authoritarian virtuousness, rejection of intimacy, interaction strain, mainstreaming. This study is based on a series of questionnaire researches conducted on 322 students, over the period from October 19th to November 14th, 2001. The questionnaire carries 50 items, covering the 8 attitude areas and each item has 5 choices. The subjects' responses to each of the areas are examined in their relations to the four conditions, as they are analysed by t-test and one way ANOVA. The conclusion drawn from the research are as follows: 1. There is no significant difference between the students of the department concerned with the problem of disability, and those of the department unconcerned. But the responses are significantly different in the three areas of generalized rejection, rejection of intimacy and interaction strain(1st condition, P<.05). 2. The responses are significantly different in 6 areas except for the two, distressed identification and inferred emotional consequences, between the students who have volunteered services as helpers of the disabled and those who have no such experiences(2nd condition, P<.05). 3. the responses are significantly different between those who have volunteered long-time services and those who are far less experienced(3nd condition, P<.05). 4. There is no significant difference, whether the subjects have disabled persons around them or not. But generalized rejection, authoritarian virtuousness, rejection of intimacy, interaction strain & mainstreming show significant differences(4th condition, P<.05). 5. Generalized rejection, rejection intimacy and interaction strain show significant differences in every pair of the 4 condition. 6. Distressed identification and inferred emotional consequence show no significant difference between the two conditions in every pair of the 4 considerations.

속도의 초기간 추정을 사용한 Navier-Stokes방정식 풀이 기법

김영희,이성기,Kim, Young-Hee,Lee, Sung-Kee 한국정보과학회 2005 정보과학회논문지 : 시스템 및 이론 Vol.32 No.9

We propose a fast and accurate fluid solver of the Wavier-Stokes equations for the physics-based fluid simulations. Our method utilizes the solution of the Stokes equation as an initial guess for the velocity of the nonlinear term in the Wavier-Stokes equations. By guessing the initial velocity close to the exact solution of the given nonlinear differential equations, we can develop remarkably accurate and stable fluid solver. Our solver is based on the implicit scheme of finite difference methods, that makes it work well for large time steps. Since we employ the ADI method, our solver is also fast and has a uniform computation time. The experimental results show that our solver is excellent for fluids with high Reynolds numbers such as smoke and clouds. 본 논문은 물리적인 힘을 기반으로 유체의 흐름을 실시간으로 시뮬레이션하기 위하여 유체 의 흐름을 지배하는 Wavier-Stokes 방정식에 대한 빠르고 정확한 풀이 기법을 제안한다 본 논문에서는 Navier-Stokes 방정식에 있는 비선형 항의 속도에 대한 초기값을 Stokes 방정식의 해로써 추정한다. 주어진 비선형 미분방정식의 해에 근사하게 초기값을 추정함으로써 정확하고 안정적인 풀이 기법을 만들 수 있었다. 또한 유한차분법(finite difference method)의 암시적(implicit) 방법 중에서 방대한 계산량을 피할 수 있는 ADI(Alternating Direction Implicit) 방법을 사용함으로써 큰 시간 간격(time-step)에 대해서 시스템이 안정적이며 계산속도 또한 빠르다. 실험 결과들은 특히 연기, 구름과 같이 큰 레이놀드 수(Reynolds number)를 가지는 유체에 대해서 탁월한 성능을 보여주었다.

섬유 재질에 대한 천연 살충·살균제의 적용성 평가

김영희,홍진영,정미화,조창욱,김수지,이정민,최정은,Kim, Young-Hee,Hong, Jin-Young,Jung, Mi-Hwa,Jo, Chang-Wook,Kim, Soo-Ji,Lee, Jeung-Min,Choi, Jung-Eun 국립문화재연구소 2011 保存科學硏究 Vol.32 No.-

Wood vinegar and Asarum sieboldii Miquel were selected as candidate materials showed antimicrobial activity and insect repellent activity. These natural pesticides have its own color and these could cause color difference on fabric materials. In the present study, we investigated the color difference of undyed and dyed fabrics to evaluate negative effect of wood vinegar and A. sieboldii Miquel. Undyed and dyed fabrics were exposed to natural pesticides of various concentrations for six months in relative humidity 70% and temperature $28^{\circ}C$. After exposure of pesticides, color difference (${\Delta}E*$) were investigated at two weeks intervals for six months. As a results, dyed cotton, silk and undyed silk fabrics exposed wood vinegar were not nearly changed in their colors, but color of only undyed cotton fabric was clearly changed by wood vinegar. Especially color difference by wood vinegar on undyed cotton fabric was most distinct as the concentration increased. On the other hand, all of fabrics exposed A. sieboldii Miquel were not nearly changed in their colors for six months. Therefore, this study first suggests that wood vinegar and A. sieboldii Miquel as natural insecticides could be used to conserve for textile cultural properties from insects and microorganism, but wood vinegar couldn't use the high concentration on undyed cotton fabric.

고점도 지류 및 섬유 문화재의 점도 측정 개선 방법 연구

김영희,홍진영,조창욱,김수지,이정민,서민석,최경화,Kim, Young-Hee,Hong, Jin-Young,Jo, Chang-Wook,Kim, Soo Ji,Lee, Jeung-Min,Seo, Min Seok,Choi, Kyoung Hwa 국립문화재연구소 2013 保存科學硏究 Vol.34 No.-

Paper, textile and wood materials are mainly consisted of cellulose. Cellulose is high molecule and make up the strong crystalline structure by hydrogen bonds. In particular, the polymerization degree of cellulose are closely related to the strength of fiber, and the permanence. the useful life of fiber, also depends on the degradation of this substance. The viscosity of cellulose is considered to be an important indicator of fiber damage in high molecule polymers. The viscosity measurements with CED solution is used to measure the molecular weight and the degree of polymerization of cellulose. Cellulose viscosity of wood fibers is measured with TAPPI standard method T230. However, TAPPI standard method T230 is difficult to completely dissolving the cellulose of high molecular weight and large degree of polymerization, such as Korea traditional papers and fabrics made with mulberry, ramie, cotton fibers. In this study, The high viscosity of hanji and fabric was measured with TAPPI standard method T254. T254 method is that the cellulose specimen with the proper amount of weaker (0.167M CED) solution, and completely dissolved with the stronger (1.0M CED) solution. It was found that cellulose with high degree of polymerization was dissolved more easily in general CED method.

보건진료소지역주민의 건강실태변화조사

김영희,최부옥,Kim, Yeong-Hui,Choi, Bu-Ok 한국지역사회간호학회 1990 지역사회간호학회지 Vol.2 No.1

삼중대각행렬 시스템 풀이의 빠른 GPU 구현

김영희,이성기,Kim, Yong-Hee,Lee, Sung-Kee 한국정보과학회 2005 정보과학회논문지 : 시스템 및 이론 Vol.32 No.11

컴퓨터 하드웨어의 급속한 발전으로 그래픽 프로세서 유닛(Graphics Processor Units : GPUs)은 굉장한 메모리 대역폭과 산술 능역을 보유하게 되어 범용 계산에 많이 활용되고 있으며, 특히 계산 집약적인 물리 기반 시뮬레이션(physics based simulation)의 GPU 구현이 활발하게 연구되고 있다. 물리 기반 시뮬레이션의 기본이 되는 미분방정식 풀이 과정에서 삼중대각행렬(tridiagonal matrix) 시스템은 유한차분(finite-difference) 근사에 의해서 자주 나타나는 선형시스템으로 물리 기반 시뮬레이션 관점에서 삼중대각행렬 시스템의 빠른 풀이는 중요한 연구 분야이다. 본 논문에서는 GPU에서 삼중대각행렬 시스템 풀이를 빠르게 구현할 수 있는 방법을 제안한다. 벡터 프로세서(vector processor) 계산에서 삼중대각행렬 시스템 풀이 방법으로 널리 사용되는 cyclic reduction 또는 odd-even reduction 알고리즘을 GPU에서 구현하였다. 본 논문에서 제안한 방법을 삼중대각행렬 시스템 풀이 방법으로 잘 알려져 있는 Thomas 방법과 GPU를 이용한 선형시스템 풀이에서 좋은 성과를 보이고 있는 conjugate gradient 방법과 비교할 때 상당한 성능 향상을 얻을 수 있었다. 또한, 열전도(heat conduction) 방정식, 이류 확산(advection-diffusion) 방정식, 얕은 물(shallow water) 방정식에 의한 물리 기반 시뮬레이션의 GPU 구현에 본 논문에서 제안한 방법을 사용하여 1024x1024 격자의 계산 영역에서 초당 35프레임 이상의 놀라운 성능을 보여주었다. With the improvement of computer hardware, GPUs(Graphics Processor Units) have tremendous memory bandwidth and computation power. This leads GPUs to use in general purpose computation. Especially, GPU implementation of compute-intensive physics based simulations is actively studied. In the solution of differential equations which are base of physics simulations, tridiagonal matrix systems occur repeatedly by finite-difference approximation. From the point of view of physics based simulations, fast solution of tridiagonal matrix system is important research field. We propose a fast GPU implementation for the solution of tridiagonal matrix systems. In this paper, we implement the cyclic reduction(also known as odd-even reduction) algorithm which is a popular choice for vector processors. We obtained a considerable performance improvement for solving tridiagonal matrix systems over Thomas method and conjugate gradient method. Thomas method is well known as a method for solving tridiagonal matrix systems on CPU and conjugate gradient method has shown good results on GPU. We experimented our proposed method by applying it to heat conduction, advection-diffusion, and shallow water simulations. The results of these simulations have shown a remarkable performance of over 35 frame-per-second on the 1024x1024 grid.

중동정세와 OPEC

김영희,Kim, Yeong-Hui 대한석유협회 1982 석유와 에너지 Vol.1982 No.10

발아중인 대마 배유조직의 Cellulase 활동에 관한 전자현미경적 연구

김영희,김은수,Kim, Young-Hee,Kim, Eun-Soo 한국현미경학회 1994 Applied microscopy Vol.24 No.3

1. 배유세포의 세포질에는 핵, 미토콘드리아, 색소체, 소포체 및 액포가 관찰되었는데, 배유의 가수분해가 상당히 진전될 때까지도 이들 세포소기관은 남아있었다. 2. 대마의 배유세포내에는 $0.75-2.5{\mu}m$ 크기의 지질과립과 $3.0-7.5{\mu}m$ 크기의 단백질과립이 충만하였으며, 발아와 더불어 이들은 점차 소실되었는데, 단백질과립이 가장 먼저 분해되어 액포화하였다. 그러나 모든 단백질과립과 세포질의 분해가 진행되어도 지질과립은 잔존하였고, 세포벽 분해가 완전히 이루어진 후에야 비로서 분해되었다. 3. 형질막에 둘러싸인 단백질과립은 전자밀도가 매우 높은 중앙부와 이질적인 주변부로 이루어져 있었으며, globoid는 관찰되었으나 crystalloid는 관찰되지 않았다. 단백질과립의 분해양상은 주로 주변부의 단백기질로부터 분해되었으며, 중앙부에 과립상 형태의 분해 현상이 관찰되기도 하였다. 4. Cellulase의 활성은 세포벽 전반과 일부 세포질에서 나타났는데, 배 가까이의 배유세포벽과 일부 잔존한 단백질과립에서 특히 강한 활성이 관찰되었다. 5. Cellulase의 반응산물은 가수분해가 완료된 제형충의 분해된 섬유소원에서 작은 과립상으로 관찰되었다.

만발형골화석증

김영희,이재서,윤숙자,강병철,Kim Young-Hee,Yi Jae-Seo,Yoon Suk-Ja,Kang Byung-Cheol 대한영상치의학회 1999 Imaging Science in Dentistry Vol.29 No.2

Osteopetrosis is an uncommon hereditary bone disorder whose prominent radiologic feature characterized by increased bone density. The authors reported a 7-year-old male patient who referred from local dental clinic for dental problems such as early exfoliation of deciduous teeth(#54,73,83) and delayed eruption of permanent teeth(#31.41.36.46). The patient appeared as a poorly developed. Dental X-ray films showed early exfoliation of deciduous teeth, delayed eruption of permanent teeth, and rampant caries. Lateral view of skull demonstrated increased opacity of calvarium, facial bones, and skull base. Generally the skeletal density is greatly increased throughout all bones. Facial CT showed poor development of paranasal sinuses and mastoid air cells. No hematopoietic and neurologic complications such as anemia, thrombocytopenia, blindness and deafness were found. Also mental retardation was not found. The final diagnosis of this case was a osteopetrosis tarda. Sometimes patient with osteopetrosis tarda may be developed dental problems prior to severe systemic symptoms. The dentist can be the first clinician to see the patient. It is very important for the dentist to have the knowledge of the osteopetrosis and to care the patient's dental problems to prevent complication such as osteomyelitis of jaws.