노인의 Helicobacter pylori 재균율

박주상,홍원선,이영수,이은주,명승재,정훈용,양석균,김진호,민영일 대한노인병학회 2000 Annals of geriatric medicine and research Vol.4 No.3

Accent-Epenthesis Interaction Revisited

Hyun-ju Kim,In Young Yang 한국언어학회 2016 언어 Vol.41 No.2

Kim, Hyun-ju and In Young Yang. 2016. Accent-Epenthesis Interaction Revisited. Korean Journal of Linguistics, 41-2, 239-265. This study investigates the lexical statistical patterning in North Kyungsang Korean accent-epenthesis interaction. Previous phonetic studies of Korean epenthetic vowels showed that inserted vowels are not phonetically distinct from corresponding lexical vowels (Kim & Kochetov 2011; H-J. Kim 2015), suggesting that complete neutralization would not help NKK speakers access underlying representations of epenthetic vowels to avoid accenting epenthetic vowels. We performed a corpus study to examine whether other informative cues are available in the lexical probabilistic patterning, which might help NKK speakers with the covert interaction of accent and epenthesis. The results show that the lexical stochastic patterns would not provide a cue for the accent avoidance of epenthetic high vowels. Rather, it is assumed that there is a clear distinction of lexical strata in Korean phonology, helping NKK speakers learn the interaction. We propose a formal analysis adopting comparative phonotactics developed by Hayes (in press), based on two lexical strata: NATIVE and FOREIGN (e.g., Ito and Mester 1999). This analysis provides a better approach to accounting for the covert interaction that does not involve the learnability problem. (The State University of New York, Korea and Seoul National University)

회맹장 판막에 발생한 아니사키스증 1례

이재익,박정하,김준영,조영완,진한영,강명주,정은욱,박석주,양성연 인제대학교 2006 仁濟醫學 Vol.27 No.-

Anisakiasis refers to parasitic infestation by nematode larvae that belongs to the subfamily Anisakinae, and this condition is seen in people who eat inadequately prepared or raw salt-water fish. While gastric anisakiasis is commonly diagnosed by endoscopic technique, intestinal anisakiasis is rare because it is less common and the clinical and radiologic features are poorly understood. The authors report a case of human anisakiasis involving the ileocecal valve in 62-year-old man who had the history of eating raw cuttlefish.

타타늄의 열처리 조건에 따른 동전위 양극분극특성 및 표면 미세구조 변화

주동현,이용렬,정영화,양홍서,박상원,이도재,송호준,박영준 大韓齒科器材學會 2002 대한치과재료학회지 Vol.29 No.2

The corrosion resistance of metallic implants is essential for successful implant osseointegration. Moreover, the implant surface should have appropriate surface roughness for the attachment of the osteoblast and collagen fibrils. When titanium is exposed to air a thermodynamically very stable oxide film is formed at once. This oxide is very thin and yet it protects the metal from corrosion instantaneously. However, the oxide would not be ideal, and it would be supposed that the state of oxide film would be various by the different conditions when it is formed. The objective of this study was to evaluate the electrochemical properties and surface microstructural changes of titanium after passivation treatment or exposure to high heat (in vacuum or in air). ASTM grade 2 commercially pure titanium (Ti) disks of 10㎜ diameter were wet ground and polished with 240 and 600 grit SiC, and then ultrasonically cleaned with distilled water and ethanol. Cleansed as-received samples (As-R group) were passivated with 30% nitric acid solution at 50℃ for 15 minutes to make the Pas group. The Std-V samples were made by treating the Ti disks in vacuum quartz tube (10^-8 Torr) at 530℃ for 40 min for stress relieving, followed by annealing at 700℃ for 90 min, and then slow cooling to room temperature. The Std-A samples undergo identical procedure as the Std-V group except that it is done in air. For 530℃-V samples, Ti disks were heated at 530℃ for 40 minutes and slow cooled to room temperature. The 1000℃-V samples were produced by heating Std-V specimens again at 1000℃ for 2 hr, followed by cooling to room temperature. 530℃-A and 1000℃-A samples were also prepared. Potentiodynamic anodic polarization measurement, SEM, AFM and XRD analysis were performed to evaluate the effects of the various treatments. The difference in the mean values of E_corr between groups showed statistically significant difference (P<0.05), but that of I_corr did not show significance (P>0.05). When Ti surface was passivated there was a shift of corrosion potential (E_corr) in the noble direction and a lower corrosion current density (I_corr) value. Std-A samples showed most noble E_corr value among the tested groups. 530℃-V samples showed more noble E-corr than other tested groups except Std-A group. 1000℃-V samples showed more noble E-corr than those of Std-V sample. In the case of Std-, 530℃- and 1000℃-groups, -A sub-groups showed better corrosion resistant characteristics than -V sub-groups in regard to E-corr and I_corr values. In the SEM observations, the surfaces of the As-R samples showed only scratch line on smooth surface. In Pas samples, thick oxide layer covered the surface under high magnification observation. 530℃-A samples were covered by oxide granules, and Std-A samples had 25~50 nm-thick acicular oxides. The 1000℃-A samples were covered by coarse oxide crystals with a granule diameter of 0.1~0.6 μm having a gross appearance of milky white color, which was identified by XRD as a rutile. On the other hand, 1000℃-V samples showed an Widmansta¨tten structrue of which the orientation of the lattice is formed along crystallographic planes of the parent crystals. On the AFM observation, 530℃-A samples showed RMS roughness of 79.38 nm which is 5 times rougher than those of the As-R samples. Std-A sample had a roughness of 330.47 nm which is about 20-times rougher than that of the As-R sample. 1000℃-A samples were covered by coarse granular oxides and the roughness were about 0.56 μm. Vacuum sub-group samples showed a more smooth surface than air sub-group samples, and the oxide film was more dense. Due to variability of the surface treatment and heat treatment conditions, the process of the oxide formation seems to be affected thereby making the corrosion properties and surface micro-morphology different. However, more various electrochemical analysis together with surface analysis, and an investigation for the effects of those on the osteoblast cell adhesion and calcium phosphate apposition are needed for the improvement of the osseointegration rates of the titanium implants.

저전력의 플립-플롭과 클럭 드라이버 설계

양윤주,하영철,송정근,홍창희 東亞大學校 附設 情報通信硏究所 1999 情報通信硏究所論文誌 Vol.7 No.1

본 논문에서는 VLSI 전체 전력소비에 있어 비중이 높은 클럭 시스템의 전압 스윙 폭을 줄여 전력소비를 감소시킬 수 있는 저전압 클럭용 플립플롭을 제안한다. 제안된 플립플롭이 저전압 스윙 클럭으로도 동작함을 증명하고 이 플립플롭과 연계하기 위한 실제 전압 폭 감소 클럭 드라이버를 설계하였으며, 이 클럭 드라이버에 의해 기존의 클럭 드라이버에서 발생하는 전력소비를 1/4가량 감소시킬 수 있음을 설명했다. 본 논문에서 제시하는 플립플롭과 클럭 드라이버간의 연계동작과 소비전력 감소 효과는 SPLICE simulation을 통해 검증하였다.

학령전기 장애아 어머니의 부담감과 사회적지지

양경미,백영주,오현이 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1

Background and Objective : The purpose of this study is to identify the level of burden and social support of mothers who have handicapped children of preschool age, and is to determine whether providing social support is an effective strategy to relieve the burden of those mothers. Materials and Method : From August 17, to September 28, 1999, the data was collected from 83 mothers caring handicapped children of preschool age, who are being treated and educated at two welfare centers for the handicapped, two early training and treating centers for them in Kwangju, and one center in Seoul. Two instruments used in this study were the burden scale developed by Suh and Oh, and the Personal Resource Questionnaire(PRQ, Part Ⅱ) developed by Brandt and Weinert. The data was analyzed with t-test, ANOVA, Scheffe’s test, Pearson’s Correlation Coefficient, and Stepwise Multiple Regression analysis. Results : 1. The correlation between the burden and the social support was statistically significant. 2. Sorts of handicap of children was the most important predictor to burden of mothers caring handicapped children of preschool age(R2=.20). In addition to, this social support and brother’s precedence accounted for 32% of burden of those mothers. Conclusion : There was significant negative correlation between social support and burden.

光州市場의 高等蔬菜類에 對한 細菌學的 硏究

梁永基,金英珠,朴悅 조선의대 1985 The Medical Journal of Chosun University Vol.10 No.1

간호학과 학생들의 노인에 대한 지식 및 태도

양경미,오현이,김진선,백영주 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.1

Objectives: The purposes of this study were to investigate nursing students' knowledge and attitudes toward the elderly, to examine the correlation between knowledge and attitudes, and to identify predictors of nursing students' attitudes toward the elderly. Method: Study participants were 195 nursing students who enrolled in a university located in Gwangju. Data were collected using structured questionnaires. Results: The average FAQ Ⅰ score for nursing students in this study was 50.2%. The level of nursing students' knowledge was relatively low compared to knowledge of Western nursing students in previous studies. Moreover, the average scores of psychological dimension and family/sociological dimension were lower than those of physical/physiological dimension. Negative biases were prevalent when the biased scores were computed. Nursing students also reported a little preference for working with older patients after graduation. Although the average attitude score was in a neutral range, the number of items in a negative attitude score range were more than those in a positive attitude score range. Contrary to expectation, the correlation between knowledge and attitude was not statistically significant. Nursing students who have clinical experiences with the elderly reported higher scores on FAQ Ⅰ than their counterparts. A current relationship with elderly living in their household was a significant predictor of nursing students' attitudes toward the elderly. Conclusion: Results from this study suggest that nursing education should be directed to increase the nursing students' knowledge and positive attitudes toward the elderly. Exposure to well elderly as clients before they are hospitalized or institutionalized may be helpful to increase nursing students' positive attitudes toward the elderly.

센서 위치 보정을 통한 원추형 자기베어링 로터의 위치 제어

양승준,곽병철,김주영,이재응 중앙대학교 기술과학연구소 2001 기술과학연구소 논문집 Vol.31 No.-

이 논문에서는 원추형 자기베어링으로 지지된 고속 연삭기 로터의 정밀진동제어에 관한 연구를 수행하였다. 이러한 연구 목적으로 달성하기 위하여 전력증폭기와 원추형 자기베어링을 포함한 각 축에 대하여 이산시간 모델을 규명하였으며, 그 결과를 모의 제어기의 설계시 활용하였다. 또한 제어기의 입력값을 조절하여 자기베어링 공간내에 로터가 최적의 위치에 놓일 수 있도록 조정하였으며, 위치를 검출하는 센서와 전자기적 흡인력을 발생하는 액츄에이터 사이의 위치 불일치를 보정하는 방법을 개발하고 실험 대상에 적용하였다. 그 결과 front 방향과 rear 방향 사이의 연성 효과가 확연히 감소되었고, 로터 회전시의 진폭이 50,000 rpm에서 ±7㎛ 이내의 성능을 보이는 정밀 진동 제어를 수행하였다. In this paper, the precise vibration control problems of high speed grinding rotor supported by cone-shaped active magnetic bearings are investigated. Toward this end, each part of the system including power amplifiers and magnetic bearing systems are identified s discrete time models, and the results are used for controller design. In addition, the correction method of the position error between sensor and actuator are developed and implemented for the experiments. As a result, the coupling effect between front and rear axis are decreased and the amplitudes of rotor vibration are controlled within ±7㎛ at 50,000 rpm.

老人女性의 운동에 대한 認識 및 與件과 實態에 관한 調査硏究

梁順子,權永玉,元周淵 忠南大學校體育科學硏究所 1988 體育科學硏究誌 Vol.6 No.1

The purpose of this study was to provide a fundamental information for plan for positive and active participation or execution of exercise in Female elderly. Questionaire about the Leisure activities, the understanding for exercise and health, the actual and given condition of exercise participation and facilities was used for this study. 330 Aged women (over 60 year-old) who live in Seoul city were answered the Questionaire. Following conclusions were obtained were obtained : 1. Aged women's main daily works are managing house hold duties, attending a lecture in College for elderly, Seeing and Hearing of T. V. or Radio. And their Leisure activities are very simple (not various) and Static, for example seeing and Hearing of T. V. or Radio, gardening, reading, chess and Korean playing cards etc. 2. Aged women are very interested in Health and they point out illness and lack of exercise as a factor of weakness. Furthermore they understand the necessity of exercise for health and their daily life in old age, and also have a lot of intention to do exercise. 3. Exercises that aged women are enjoying or want to enjoy are taking a walk, mountain climbing, physical exercises, Aerobic dance, Badminton, and Jogging. 4. Almost aged women are doing exercise sometimes or usually, and also are seeing and hearing a T. V. or Radio for sports game. 5. Places that aged women are doing excercise are generally not well equipped place (e. g. medicinal water fountain, low hill, and around their house). Besides almost doing exercise alone or just with intimate friends and family. Club sports activities are not general. 6. As inconvinient factor for exercise, a lot of aged women pointed out the not specially equipped or established sports facilities for elderly, lack of number of equipment, and the long distance from home to facilities.