在美 韓國 老人의 健康 및 生活 實態에 關한 硏究

金應翊,朴祥華,韓允愚,徐敬萬 대한보건협회 1992 대한보건연구 Vol.18 No.1

This study was perfomed to figure out the health status and life style of aged population in Korean-Americans living in Los Angeles in the United States. The number of subjects in this study were 283 persons aged 65 and over (male 141. female 142) drawn from Los Angeles Country in U.S.A. The data were collected by trained interviewers from July to August. 1991. The questionaire consisted of 1) general characteristics, 2) health status and medical health services, 3) 24 questions of CMI, and 4) the level of adaptations and difficulties to immigrant society. The results of this study are as followings: 1. In age distribution, 33.2 percent of total subjects was 65-69 age group, and 33.1 percent was 70-75 age group. The average duration of immigration were 7.89 years in male and 10.18 years in female, and percent distribution by duration of migration were 33.3 percent in 1-4 years, 30.5 percent in 5-9 years, 23.7 percent in 10-14 years, and 13.5 percent in 15 years and over. Of total subjects. 84.7 percent had permanent residence and only 13.8 percent had citizenship. In the reason of immigration of the elderly, 76.4 percent of them responded as reason for helping and joining to family, and only 8.5 percent of subjects were economic reason. The educational level of the subjects were generally high. Only 9.0 percent of the subjects recevied no or little education in the modern day education system. Primary graduates were 35.7 percent, middle and high school graduates were 37.8 percent and university(college) and over graduates constituted 16.6 percent. The educational level of the male were generally higher than that of female. A large proportion of the subjects(94.3 percent) responded as having religion, and 67.8 percent were protestant, 16.7 percent were catholic and 7.4 percent were buddhist. In the family structure. 75.6 percent of the elderly lived alone and with their spouses and 22.1 percent live in a family with 2 generation living together. The marital status of male showed that 80.7 percent of them lived with their spouses, 14.3 percent of men were widowed, and only 26.3 percent of female lived with their spouses and 71.5 percent of female were widowed. 2. One out ten of the elderly was presently smoking. Of the smokers, there were 4 times as many male smokers as female smokers. In response to a question about their drinking habits, 82.0 percent of the aged replied that they did not consume alcohol. Those who consumed alcohol 'daily' constituted 3.6 percent, 'frequently' were 4.3 percent 'sometimes' were 7.9 percent and 'scarcely' constituted 2.2 percent. Among the exercises and sports which the elderly were doing for the fitness and preservation of health. A walking was the most popular at 32.1 percent of the population. More rigorous sports such as hiking, jogging, physical cardiovascular exercises and ball games were being enjoyed by only a very few. 37.2 percent of the elderly replied that they did not exercise regularly. In the major pastime of daily life activities. 40.9 percent of the subjects responded 'none', 14.7 percent of them were domestic duty for family, about 10 percent of them were hobby, religion activities, social work and participating in social education program respectively. In the problems and difficulties of immigration, 78.1 percent of them responded 'yes' in the early times of immigration and 30.4 percent in the present time of immigration. Six major problems were identified by respondent. They were, in the rank order of their language; homesickness: transportation; income and economic and custom. 3. Most of the respondents considered themselves healthy. The proportion of the question to their health at the time of study, 36.2 percent in male and 23.2 percent in female replied that they seemed to be 'excellent healthy', 34.7 percent in male and 32.4 percent in female be 'good', and 4.3 percent in male and 2.1 percent in female be 'Very poor'. In considering specific parts of their body as having problems, many of the ederly pointed out the disease of circulatory system(17.7 percent in male and 23.2 percent in female). Comparatively few of the elderly thought that they had something wrong with their musculoskeletal system(5.7 percent in male and 16.1 percent in female), digestive system(9.2 percent in male and 5.6 percent in female) and endocrine and metabolic disease(6.4 percent in made and 9.9 percent in female). Of those elderly who perceived of some problems with their circulatory and musculoskeletal systems, there were more elderly women compared to elderly men. The largest percentage of the elderly(20.7 percent in male and 26.5 percent in female) indicated palsy as the disease they fear most. Thereafter, the order of diseases feared by the elderly was diabets. hypertension, neuralgia, cancer, and dotage. A majority of the elderly, 54.6 percent of men and 44.4 percent of women, replied that they did not visit a medical institution or a pharmacy to treat their diseases during the one month prior to the survey. Of the total survey subjects who did visit a medical facilities, those complaining of circulatory system disease constituted 13.5 percent in male and 14.8 percent in female, and digestive system diseases were 7.8 percent in male and 8.5 percent in female. For the endocrine and metablic disease, disease of nervous and sens organs and musculoskeletal system were all each less than 7 percent of all the study subjects. Of the total elderly, 49.0 percent utilized medical facilities such as hospitals, herbal clincics, pharmacies and others to treat illness within one month prior to the time of survey; the utilization of clinicl and hospital were 86.0 percent, herb clinic were 8.4 percent and pharmacy were 4.2 percent. 34.8 percent of men and 11.3 percent of female did not take a medicine for treatment and promoting nutrition at the time of the survey. 55.4 percent of total elderly used the drug for treatment of diseases, and 16.6 percent for promoting nutrition. 4. Except for group of questions concerning urinary system more women than men generally complained of problems and discomforts in each groups. More elderly suffered from problems associated with musculoskeletal system than any others, and the decreasing order of the groups of problems with which most complaints were indicated are the problems associated with mental condition, urinary system, circulatory system, nervous system, visual and auditory organs, respiratory system and digestive system.

섬이 있는 포켓의 가공을 위한 최적공구경로의 결정에 관한 연구

서만승,송재성,김혜령 동명정보대학교 2000 東明情報大學校論文集 Vol.3 No.-

In area milling such as pocket machining with islands, optimal tool path planning is very difficult problem. In this paper, new algorithm is presented, which determine it. Our algorithm is consisting of three modules; (1)generating the offset curves, (2)constructing and removing the offset loop and between loops, (3)finding the shortest path for minimal tool movement, and the uncut areas. For optimal tool path planning, we make use of the concepts of loop entity, which is chain of offset curves of contour curves. It is an entity that treat systematically both the intersection of offset curves and detection of an unuseful offset curves. And our algorithm is also applied to path planning for uncut area without the modification of our algorithm. Emprical tests show that the proposed algorithm fulfils its requirements.

안근성 중증근무력증이 동반된 갑상선 기능항진증의 임상상 : Report of Six Cases

서지영,김두만,김현규,최철수,임성희,유재명,최문기,유형준,박성우,김형철,송홍기,김덕환 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

과학기술계산을 위한 전자계산기용 특수 Library 개발에 관한 연구

金相萬,姜承業,沈在洪,文東纘,徐光烈,洪勝弘,愼哲宰 광운대학교 1972 論文集 Vol.2 No.-

In this paper the subroutine library of digital computer techniques to the solution of electronic networks problem are discussed. The application of digital-computer techniques to the solution of the integrations relating the terminal variables for linear time invariant inductos and capaciters are analyzed, then on the techniques of numerical integrations trapezoidal method is used. The subroutine library for differential equations and determinations which are used in electronic networks analysis have been developed. Since these programs are the general form, anybody can utilize the programs for his own purpose.

아황산가스가 흰쥐 허파조직내 Laminin 활서에 미치는 영향에 대한 면역조직학적 연구

배성만,정호삼,서윤경,백두진,김원규,윤지희 한양대학교 의과대학 2000 한양의대 학술지 Vol.20 No.2

Sulfur dioxide (SO_2), a kind of air pollutant, causes harmful damage to human body. In particular, inhalation of sulfoxide dioxide has been demonstrated to result in the injury to the upper respiratory duct. However, mechanisms by which SO_2 affects these tissues remain to be clarified. In the present study, to investigate the mechanism of SO_2 effects, the influence of SO_2 exposure was examined in terms of the injury of lung and the expression pattern of laminin in the basal lamina. The basal lamina is an important tissue for the regulation of internal respiration by composing of air-blood barrier. Sprague-Dawley rats repetitively exposed to a mixture of O_2 gas and SO_2 gas (250 ppm) for 30 minutes a day were sacrificed to observe the distribution of laminin in the alveolar septum as well as the morphological alteration of alveoli using immunohistological methods. The resutls we observed were as follows: 1. Alveoli from SO_2-exposed rats (for 5 days) were strongly stained with anti-laminin antibody, suggesting laminin expressed at the high level, at week 1 to 3 upon exposure to SO_2 2. At week 1 to 3 after exposure of rats to SO_2, alveolar septa were collapsed, leading to the reduction of alveolar volume along with morphological changes to irregular shapes. 3. At week 4 to 6 after exposure of rats to SO_2, alveoli were weakly stained with anti-laminin antibody, suggesting laminin expression was decreased during this period. 4. Rats sacrificed at week 7 upon exposure to SO_2 exhibited the expansion of new alveoli and the expression of laminin was partially recovered up to the intermediate level. Taken together, these results demonstrate that the expression of laminin was enhanced in the early phase, followed by downregulation in the late phase. Moreover, lung injury and resolution were correlated with the level of laminin. Thus, these results suggest that SO_2 suppresses the expression of laminin, which may be associated with the neo-generation of lung tissue.

고객주문에 기초한 자율분산형 생산시스템에 관한 연구

송재성,서만승 동명정보대학교 2000 東明情報大學校論文集 Vol.3 No.-

We present a new framework for an autonomous distributed manufacturing system to improve the system efficiency as well as to cope flexibly with environmental change. When a customer order inputted, some alternatives for working group and their production schedules are made through autonomous decision making of the system constituents, and an optimal resources group is allocated through the bidding process based on a contract net protocol. In the proposed system, the concept of transition lots are introduced in order to cope with one to middle volume production and to improve the efficiency. Especially, for the purpose of the latter, an intermediate conceptual agent called process agent is created by a constituent who is willing with leadership to fulfill the bid order, organizes a working group, and manages the task execution, whereas these roles are played by a central computer in traditional distributed manufacturing systems. Every constituent makes decisions and actions so as to maximize its possessing value, and the overall behavior of the system is controlled by the value distribution.

컴플라이언스를 실현할 수 있는 매니퓰레이터 선단부의 기계적 구조의 설계

송재성,서만승 동명정보대학교 1999 東明情報大學校論文集 Vol.2 No.-

An analytical method for the design of compliant end-effector appropriate to the given assembly task is presented. Use of passive compliance in mating operations is effective in order to prevent excessive contact forces and to guide a part to be assembled to its goal location despite of positioning errors. First, quasi-static equilibrium conditions are established based on the kinematic and quasi-static analyses of mechanical contacts. Second, feasible candidates for the desired end-point compliance are calculated based on the equilibrium conditions. Next, the configurations and the spring constants of virtual springs consisting of the desired compliant mechanism are designed. Simulation of mating operations is then introduced in order to determine the spring constants and to verify whether the derived compliant mechanism enables the operations successful or not. Finally, one numerical example is shown to illustrate the proposed design method.

HPLC를 이용한 농약 Carbendazim의 측정법에 관한 연구

김준서,조만희,이상한,김창세 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.1

The measurements of pesticide Carbendazim were studied and following conditions were proposed as a most good methods; 1. There were detected at 204 nm by means of Hitachi 200-20 spectrophotometer. 2. Pesticide Carbendazim mesurement was performed by menas of ISCO model 2350, spherisorb ODS column, 70% acetonitrile as a solvent phase, flow rate 0.5 ml/min, chart speed 0.5 cm/min, and 25℃ oven temperature. 3. The relationships between the concentration and absorbance of pesticide Carbendazim were linear from 2.5 to 15 ppm. 4. It showed stable result in Folin-Wu, and the recovery rate was also good.

DHA의 미세캡슐화와 산화방지에 관한 연구

한성철,류종서,이기영,김도만,최춘순 全南大學校 觸媒硏究所 2003 觸媒硏究 論文集 Vol.24 No.-

We studied the oxidation of docosahexaenoic acid(DHA: C22: 6ω-3). β-Cyclodextrin(CD) inclusion complexes(ICs) of DHA were prepared with antioxidant such as α-tocopherol and BHT, and microcapsulated with Curdlan and Pullulan. Identification of their structural features of ICs were observed with the use of SEM, FTR, and XRD. Methods for quantitative analysis of DHA were used: TLC scanning method and TBARS(Thiobarbituric acid reactive substance) method. As a result, we observed the formation of ICs and estimated antioxidant effect. In this work, loading efficiency of DHA in ICs was about 25%, and the antioxidant effect of α-tocopherol was higher than that of BHT. When ICs containing DHA was microcapsulated with curdlan and pullulan, the loading efficiency was less than 5%.

알미늄 板材의 成形性에 관한 硏究

박만용,임영석,김상도,서대교 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.2

The formability of aluminium sheet(Al 1100), i.e., the maximum effective cup height, the uniformity of drawn cup height, the limiting drawing ratio, the thickness distribution of drawn cup and the maximum drawing load are discussed for the square and rectangular cup drawing. Two blank shapes are adopted to compare the above formabilities. One(h-bl) is designed be the slip -line theory and the other(G-bl) is the conventional shape. The five punch shape factors are considered to investigate the wide range of formability. As a result, the theoretical blank shape(h-bl) is recommended to accomplish the higher effective cup height, the larger limiting drawing ratio, the superior uniformity of drawn cup height and more smooth thickness distribution.