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      • 초고속 HMC 주축계의 열특성 해석

        김석일,김기상,김기태,나승표 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

        This paper presents the thermal characteristics analysis of a high-speed HMC spindle system with angular contact ball bearings, built-in motor, oil-jet lubrication method, oil jacket cooling method, and so on. The spindle system is composed of the main spindle and sub-spindle which are mechanically connected by a flexible coupling. The spindles are supported by two front and rear bearings, and the built-in motor is located between the front and rear bearings of the sub-spindle. The thermal analysis model of spindle system is constructed by the finite element method, and the thermal characteristics in the design stage are estimated based on temperature distribution and heat flow under the various testing conditions related to material of bearing ball, spindle speed and coolant temperature.

      • KCI등재

        부검으로 확진된 알쯔하이머병 1예 : An Autopsy Report

        한설희,이건국,양기화,장순환 대한치매학회 2002 Dementia and Neurocognitive Disorders Vol.1 No.1

        While the clinical diagnostic accuracy of probable Alzheimer′s disease (AD) is 87-96% with a diagnostic sensitivity/specificity of 0 81-0 87, the unequivocal diagnosis of AD rests on histopathological evidence at brain autopsy and/or biopsy We report here a 92-year-old woman whose clinical presentation suggested a far advanced Alzheimer′s disease Formal neuropsychological evaluations were not applicable due to severe cognitive impairments With a relatively good general physical condition she could walk with aid during her last days no focal neurological signs were noted on a detailed examination Brain MRI revealed a diffuse cortical atrophy with a marked reduction in the hippocampal volume The brain obtained weighted 780g The cerebral hemispheres examined after fixation disclosed moderately severe atrophy in prefrontal and temporal lobes on coronal section, the hippocampus was likewise severely atrophied the lateral ventricles were moderately dilated On microscope examination, there were numerous senile plaques and neurofibrillary tangles in the neocortices. hippocampus and amyglada, compatible with advanced Alzheimer′s disease In summary we report the first Korean autopsy-proven case with advanced Alzheimer′s disease.

      • KCI등재

        유아의 구강보건관리에 영향을 미치는 요인에 관한 연구

        김설악 韓國學校保健學會 1999 韓國學校保健學會誌 Vol.8 No.2

        This study was performed to find variables which affect oral health care of infants. The subjects were 439 infants and their mothers who live in suburban area. Oral examinations for the infants were conducted and the questionnairs were given to infants' mothers. Toothbrushing frequency, oral hygiene score, the percentage of filled teeth among decayed teeth, and dental treatment experience of infants were used as dependent variable, respectively. Demographic, socio-economic variables and the other variables which might affect oral health care of infants were used as independent variables. Correlation analysis and analysis of variance were used for the independent variables of toothbrushing frequency, oral hygiene score, and the percentage of filled teeth among decayed teeth of infant. Chi-Square and Student's t-test were used for the dependent variables of dental treatment experience of infant. The obtained results were as follows; 1. Toothbrushing frequency of mother and internal locus of oral control of mother were the factors which affect toothbrusing frequency of infants. 2. Oral health belief of mother was the factor which affect oral hygiene score of infants. 3. Age of infant was the factor which affect the percentage of filled teeth among decayed teeth. 4. Age of infant and educational level of infant's mother were the factors which affect the infants' consumption of dental treatment.

      • KCI등재

        일 초등학교 1·2학년 아동과 학부모의 시력관련 지식 및 행태에 관한 조사

        김설이,강혜영 韓國學校保健學會 2002 韓國學校保健學會誌 Vol.15 No.1

        The purpose of this study was to investigate the visual acuity and the degree of vision-related knowledge and behaviors of the 1st and 2nd graders of primary school and their parents in a city. The research design was a descriptive study and the subjects were 579 pupils and their parents in Namwon City, Chonbuk province. Children's vision screening was conducted with Han's test by author, school nurse according to the guidelines. The data were analyzed by frequency, percentage, mean, S.D., t-test, ANOVA, Pearson's correlation coefficient, χ^2-test with SAS program. Subnormal visual acuity group (SVAG) in children was 17.3%, and was higher in girls and in the 2nd graders, but there were no significant differences statistically. The mean score of the vision-related knowledge in children was 6.8 points out of 10 points and that of vision-related behaviors was 23.5 points out of 33 points. The mean scores of the vision-related knowledge were significantly higher in 2nd graders (p= .02), in girls (p= .02) and SVAG (p= .01) and the group of high scores in vision-related knowledge presented significantly high scores in vision-related behaviors(p= .001). The mean score of the vision-related knowledge in parents was 6.4 points out of 10 points and that of vision-related behaviors was 28.4 points out of 33 points. The group with high scores of vision-related knowledge in parents presented significantly high scores in vision-related behaviors (p= .003). As SVAG were higher in 2nd graders and the group of high scores of vision-related knowledge showed also high scores in vision-related behaviors in both children and their parents, From the above results, the author suggests a school-based visual health program for them.

      • 美國大學의 特異性 : 近大美國 文學을 中心으로

        鄭卨秀 忠州大學校 1968 한국교통대학교 논문집 Vol.2 No.-

        Every literature of Europe began before the time of printing. This was a period of folklore, legends, and ballads. Such a collection of simple songs and stories represents the "childhood" of a literature, in which it is starting to grow up and develop. But American literature had no such childhood. American literature was begun by the colonists who came from England to settle the New Condinent. We can divide Ameracan literature as the following : 1. The Period of the American Colonies ; The writings of this period dealt with religion, morals, and church teachings by Puritanism and Frontier Mind. 2. The Period of the American Revolution ; Because of Independence War, American literature did not develop in this period. 3. Romanticism ; The romantic writers dealt with admiration of nature, individual dignity freedom, right and to sing the rustic life. The active writers of this Period were Irving, Cooper, Emerson, Thoreau and Poe. 4. Realism ; American realism was led by Mark Twain who wrote「The Adventure of Tom Sawyer」,「The Adventure of Huckleberry Finn」etc. with American humour and style. From this period American literature, completely, escaped from the literature of another counntry. 5. Naturalism ; American realism was grown up by naturalists. Naturalists wrote the exposing novels to American society of this period. In this treatise, I described only about the peculiarity of modern American literature. I think what we know of the peculiarity of a period is very important. By understanding the literature of another country, we must know the peculiarity of that peroid well. As a result we can understand their literature deeply.

      • Henigway의 主人公들에 關한 考察

        鄭卨秀 忠州大學校 1976 한국교통대학교 논문집 Vol.8 No.1

        When we read Hemingway's works, we can find that Hemingway offers three Patterns of his heroes in his works. One is the pattern of Nick Adams, another is the pattern of Jake Barnes, a third is the pattern of Frederic Henry. Hemingway's heroes have 'moral code' which Hemingway made in his works in order to express his literary ideas. Nick Adams does not have moral code, but Nick experiences, Violence, evil and death which man has in this world. Jake has moral code receiving and enduring his conditions given him. Henry has moral code conquering his conditions. Hemingway's heroes must conduct acoording to these codes. If heroes and charaters in his works do not observe them, he regard as a coward. Hemingway exoressed all his literary ideas through his heroes. And we can guess Hemingway's heroes are Hemingway himself because all the contents of his works agree with his practical life.

      • KCI등재
      • KCI등재

        경도인지장애 : 알쯔하이머병의 초기단계인가? Is it an Early Stage of Alzheimer's Disease?

        한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

        Aging causes deterioration of various aspects of memory performance in norma adults In recent years. a great deal of interest has been generated around the concept of a boundary or transitional state between normal aging and dementia or, more specifically, Alzheimer's disease (AD). This condition has received a number of descriptions including incipient dementia. questionable dementia. age-associated cognitive decline, isolated memory impairment and mild cognitive impairment (MCI) Commonly accepted guidelines for MCI have been established-memory complaint, preferably corroborated by an informant. objective memory impairment for age and education. normal general cognition, preserved activities of daily living, and not demented The precise definitions need to be explicated. but these will probably simply be a refinement of a concept. rather than a major re-definition Importantly, clinical and neurobiological evidence suggests that patients with MCI are at an increased risk for developing AD. Current research efforts are geared with MCI are at an increased risk for developing AD. Current research efforts are geared towards intervention strategies aimed at preventing the development of AD among persons with MCI.

      • KCI등재

        김관 평론과 '민족음악'론

        신설령 민족음악학회 2004 음악과 민족 Vol.28 No.-

        Since there were few musical critics in 1930s, Kim Guan proposed the reexamination of "the national music." During this era, there were no support or exchanging of views from his fellow musical critics toward his proposal. Many believed that because of the closely monitored Japanese imperialism, they were intimidated to express their points of views and support for Kim's, "the national music." Besides of being suppressed, many found that Kim's opinion were very ahead of time or very futuristic and therefore, it didn't get the importance of its issues. After the independence from Japan, there were bursts of discussions about his proposal as like the darn water exploded. Many people including the musical critics were able to express their views towards the proposal. They could sing for joy during the independence. In 1980s, the systematic written exposition or argument about Korean music could point out and discussed the problems of the western music influences. However, during the occupation of the Japanese, there was one musical critic who gave his valuable opinion on "the national music" --- Kim Guan. Even though there was no freedom, there was advancement and it led the Korean music where it is today.

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