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尹汝松 호남대학교 1986 호남대학교 학술논문집 Vol.7 No.2
This paper analyzes the fo lkcustoms before childbirth among the rural people in Cheonnam area. The folkcustoms in this area are carefully analyzed with special reference to the prayer custom for a child(especi- ally for a son), the taboo during the period of pregnancy, the foreknow- ledge of the sex of a fetus, the preventive measures for miscarriage, the measures for easy labor, and so on. The analysis of the materials of above folkcustoms has reavealed the following summar ized. 1)The prater for a child is a custom of praying to divine spirits for a child or of playing some magic. When people devote themselves to spirits for pregnancy, they go to a specific tree, a mountain, or a spring, and so forth. They sometimes eat such fruits as red peppers, must, or jujubes. Women who pray for pregnancy quite interestingly make it a to rule to take three pieces of the above-mentioned seeds. 2) The dream of forthcoming conception is thought of as a dream to foretell pregnancy. This dream in most casec is dreamed by women. Hearing of the dream, people predict the sex or the fate of the unborn baby. In the dreams of forthcoming conception there appear such familiar things around us as animals or prants, or celestial bodies. The qualities or characteristics of the things come up in dream are the clues to foretell the sex of the unborn child. lf the objects in dream are big, cruel, or red. people foretell a son while they expect the birth of a daughter if the things in dream are little, pretty, or blue. 3) The taboo in pregnancy is a custom in which the pregnant woman and or her family do not take some specific foods or abstain from unclean doings in order to attain the mother’s sound health and the unborn baby’s good growth after birth. For example, woman in pregnancy does not care for eating octopus for fear that she deliver a deformed baby without bones. And people suppose that chimney repair might cause for a childbirth of a split. These preventive measures of various types are based upon thr law of similarity that some actions might be the causes for the results of similar aspects. And in some cases the women in pregnancy keep taboos not only for themselves but also for other women. 4) The familt with a pregnant woman desires to know to sex or the unbo- rn baby. To meet this desire some ways to forell the sex of the fetus are devised. There are tow kinds of prediction; one is to predict the sex by noting the mother’s physical transformation or the fetus’movements, and the other is to infer the sex of the baby from her very former childbirth. most of these was come from a great number of experiences so that they are thought to be of great possibility. 5) The preventive measures for miscarriage can be said to be a kind of folk remedy to prevent the abortive birth and to maintain a mormal growth of the fetus. Many pregent women are in the habit of drinking the water of boiled persimmon calyxes, door handles, or axes. These things are in common to have the quality of great abhesive power. The measures for the women in pregnancy to prevent the abortion or hard labor and to guaranted an easy delivery are the measures for easy labor. In these measures are included the girdling the prognant woman with her husband’s waist belt. the clothing the mother with the costume borrowed from a women who delivers easily, and the drinking the water of boiled belt of her husband. In most casesthesemeasures are greatly dependant upon her husband, other womon of easy labor, sorceresses, or magic things rather than the pregnant women herself.
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Toluene과 iso-Propanol계 및 p-Xylene과 n-Butanol계의 자연발화온도 측정
윤여송,하동명,유현식,이영순 한국화재소방학회 2010 한국화재소방학회논문지 Vol.24 No.2
The values of the AIT (autoignition temperature) for fire and explosion protection are normally the lowest reported. The MAITB (Minimum Autoignition Temperature Behavior) of flammable liquid mixture is exhibited when the AITs of mixture is below the AIT of the individual components. The MAITB is an interesting experimental features, which can be significant from the perspective of industrial fire safety. In this study, the AITs of toluene + iso-propanol(IPA) and p-xylene + n-butanol systems were measured using ASTM E659-78 apparatus. The AITs of toluene, iso-propanol (IPA), pxylene and n-butanol which constituted two binary systems were 547oC, 463oC, 557oC and 340oC respectively. The toluene + iso-propanol(IPA) system is exhibited MAITB at 0.3 mole fraction of toluene,and its minimum autoignition temperature was 460oC. 가연성 혼합물의 최소자연발화온도 거동(MAITB, Minimum Autoignition Temperature Behavior)은 어떤 조성에서 두개의 순수물질 가운데 낮은 물질의 AIT보다 낮은 AIT를 갖는 현상을 말하며, 이는 위험물을 취급하는 공정에서 매우 관심있는 분야이다. 본 연구는 ASTM E659-78(Standard Test Method for Autoignition Temperature of Liquid Chemical)을 이용하여 toluene과 iso-propanol(IPA) 및 p-xylene과n-butanol혼합물의 최소자연발화온도를 측정하였다. Toluene, IPA, p-xylene 그리고 n-butanol의 자연발화온도는 각각 547oC, 463oC, 557oC, 340oC였다. Toluene과 iso-propanol(IPA) 계의 경우는 3 : 7(Toluene :IPA) 비율의 혼합물 일 때는 IPA순수물질(464oC)보다 자연발화온도가 약 3oC 낮은 혼합물의 최소자연발화온도거동 MAITB(Minimum Autoignition Temperature Behavior)을 보였다.
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윤여송,박종원 한국관광정책학회 2000 觀光政策學硏究 Vol.6 No.3
The main purpose of this study is to establish a model of Korean mid-price hotel through market analysis and financial analysis in Korea. Through the model of the Korean mid-price hotel, we develop customer-oriented and most profitable mid-price hotel. This is for Korean hotel industry and budget-minded people traveling around Korea. We hope this study will help many hotel investor and officer working for tourism infrastructure. And also this study will help the research of many hotel development project.
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윤여송,이근원 한국가스학회 2023 한국가스학회지 Vol.27 No.4
In a petrochemical plant, various mechanical equipments and structures are interconnected to ensure operability. Therefore, if any of them collapse in earthquakes, operability cannot be secured, which has a significant impact on the national economy directly or indirectly. The current seismic design aims to prevent collapse and is insufficient to secure operability, so performance-based seismic design is necessary. Spherical (ball) storage tanks are supported by columns and braces and exhibit complex nonlinear behavior because of buckling and yielding of support members. In this study, nonlinear seismic behavior characteristics were statistically analyzed and a new performance-based seismic design method was proposed based on them.
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