圓筒과 吸入이 있는 平板 주위를 흐르는 二次元의 느린 粘性流動

河在賢,河鍾晩 嶺南大學校 工業技術硏究所 1986 연구보고 Vol.14 No.2

The assumption of this study lies in two dimensional slow viscous flow which flows around cylinder circumsference when the cylinder is placed on the plane with suction. In this study, the results was obtained as following. 1. As the distance between the cylinder and the plane closes, the size and the number of closed stream including separation points diminish conspicuously; especially, re-attached separation point changes more sensitively for the stream direction than the first separation point. 2. The separation on the cylinder disappears completely in the following cases; if the suction in given on the plane which is above 0.114 times as fast as free velocity at infinity when the distance between the cylinder and the plane is 3.762 times as far as the radius of the cylinder; if above 0.114 times suction velocity is given when the distance is 1.810 times as far.

피스톤 음원에 의한 음장의 해석에 있어서 reactive field의 영향

하재규 公州大學校工科大學生産技術硏究所 1996 論文集 Vol.5 No.-

Reactive fields generated by piston radiators are analyzed and numerically simulated for the case of rectangular pistons. The reactive field is characterized by those features as exponentially decaying pressure amplitude and parallel equi-phase planes. These properties behaves such that the near field is strongly governed by the reactive field to result in much complicated patterns. Simulation results for the rectangular pistons show that once the observation point is λaway from the source, the reactive filed can be neglected.

쟁기와 푸라우의 牽引抵抗에 土壤의 物理性과 耕深이 미치는 影響에 對한 硏究

崔在甲 서울大學校 農科大學 1977 서울대농학연구지 Vol.2 No.2

Even though there has bean many studies on the plow and quite a few about its draft resistance, we have not so much information about the practical field tests on it with the Variation of different soils. Furthermore there is few of research results of the effects of the physical propeties of soil on the draft resistance of the Janggi and plow. The objective of this study was to clarify the characteristics of Janggi and to obtain necessary basic information for the development of the method of improrement and the utilization techniques. The results of theoretical analysis and experimental field tests were comparedeach other. The field tests included the investigation of the draft resistance by using one Janggion the upland and paddy field with the changeof moisture content and clay content of the soil. The results obtained are able to be explained in the Two major parts. 1) The analytical comparison of the values of draft resistance of Janggi computed from the theoreticul equations and the results of the relation between the experimental measurments of the resistance and the physical characteristics of the soil. 2) The discussion of the effects of the physical properties and its specific resistance in the comparison of the draft resistance values obtained from field teste with those calculated from the theoretical equations.

統一을 對備한 南北 觀光交流·協力方案

崔在一 江陵大學校統一問題硏究所 1999 統一問題硏究 Vol.15 No.-

權力者와 法治主義

沈在宇 동아대학교 법학연구소 1996 東亞法學 Vol.- No.21

(1) 20세기에 들어와서 國家權力의 濫用으로 인한 權力者의 不法은 인류 역사상 그 유례를 찾아볼 수 없을 만큼 잔인하고 비인도적인 人權侵害를 수반하였다.집단학살, 강제납치살해, 고문, 정치적 테러, 박해, 강제노동, 인간(생체)실험, 인종청소, 킬링필드의 도살, 국외추방 등

回轉車의 깃을 傾斜시킨 再生펌프의 性能에 關한 硏究

河在賢,權正熙 嶺南大學校 工業技術硏究所 1985 연구보고 Vol.13 No.1

The impeller of regenerative pump have been made mostly with the radial vane. As the maximum total head and the maximum shaft-power occur at shut-off operation of the radial vane, the choise of driving motor should standard this operation and safety valve has to be equipped on the delivery side of casing. Founded on the performances of several kinds of the inclined vane, this paper studied the prevention from the overload at shut-off operation and saving-up of the required power. From these study, we obtained the following results. (1) The total-head variations created by flowrate reduction are little in the backward-inclined vanes whose angle is smaller than 90˚. (2) The efficiency is high at the vane angle of 85˚∼95˚, and specially that is the highest at 85˚. (3) The bigger the vane has a inclination against radial direction, the less the variable shaft-power is in the range of the total flowrate. Therefore, if the backward-inclined vane of about 85˚is equipped in this pump not only the efficiency is good and the required power is saving, but also the overload is reduced at shut-off operation.

農村의 主要社會經濟團體調査에 依한 韓國農村이 停滯性에 關한 硏究 : 全南地力의 契 調査를 中心으로

崔在律 全南大學校開發硏究所 1964 農業科學技術硏究 Vol.2 No.-

This paper is attempted to find the causes of poverty in Korean rural community by surveying the various socio-economic organizations, especially "Gyes"(so-called,mutual finance associations) In Western countries,as Max Weber pointed out, Capitalism was propelled by Protestant ehics. In Korea, however, it seems impossible to find such a spiritual impulse. Especially farmers are never trained to apply themselves to capitalistic competition, and they are adhered to feudalistic and pre-capitalistic ideology. Korean farmers' ideology is chiefly influenced by Confucianism. The ideology of Confucianism is based on rationalism of present world, with the assumption that character and essence of human being is originally honest and good. Korean farmers prefer thespiritual and social values to material wealths. It is the very reason why Korean farmers are so poor in economic aspect. But it is very difficult to find the causes of their poverty from that view of value because of its abstractness. This situation made me to survey the various socio-economic organizations to grasp their concerns and view of value. It seemed possible to find their view of value and the causes of thier poverty by observing and analysing the socio-economic organizations, especially"Gyes." Korean people have been organizing"Gyes"spontaneously without any interferences and orders. They have been enjoying their lives, helping to get rid of their lonely life and unhappy events through this organization. They have, for the last few centries ,made it a rule to organize"Gyes"when they wish to do something to be done by Cooperation. To-day, the movement of Cooperatives, so far as village cooperatives, it stagnant, while "Gyes"are prosperous and popular among the people. While cooperatives help to promote the economic development,"Gyes"prevent rural communities from it. This research is based on such a view point in finding the causes of poverty of Korean rural Communities. These surveys were performed by the country agencies of O.R.D and the pioneer workers of A.C., and students and the writer of this paper. Surveys were made on 29villages and 266 various socio-economic organizations,among which were 210"Gyes,17 agricultural Cooperatives, 18 4H clubs and 26 another associations Every organization was surveyed,according to the schedule, made in advance, by interviewing the leaders of every organization. Followings are the Conclusions made from the result of this survey: 1.There are many socio-economic organizations in rural Communities. Every village has 9 organizations, on an average. Above all the organizations, "Gyes"are absolutely numerous and the majority of farmers have joined in "Gyes". This fact make us consider that"Gyes" are still most prosperous. 2. Among the many "Gyes", those for funeral rite, marriage ceremony and recreation are most of all. The reasons why farmers organize so many"Gyes" are that these events causes them formidable expenses and that farmers are indulged in phylosophy of uneasiness. 3. Some of "Gyes" inhibit outsiders from joining and some limit the qualifications of membership. From this it is learnt that Gye has more or less exclusive nature in itself. According to the results of survey,"Gyes"-having 10.29 members-occupy overwhelmingly large number. This suggests that Korean farmers are more used to Cooperate in groups of smaller number of membership than in those of large number. 4. Usually the oldest member is selected as the head of every organization and the rest are selected in turn as manager without respect to their managerial ability As one of the major causes of the poverty in rural communities, it can be said that they are usually administrated by the aged. This fact is typically found in the system os "Gyes" 5. Almost all of the "Gyes" have considerable real and personal estates. Every Gyes lent their estates to their members or outsiders to get interest of high rate than that of Current band rate. The members of "Gyes"are indifferent to the high rate of interest for increasement of the fund of "Gyes" because they do not sense the evil practices of wasteful expenditure of "Gyes" This situation have brought to Korean rural communities the lack of motivation for the increasement of productivity

軸流式 送風機의 프로펠러의 材料節減을 爲한 實驗的 硏究

河在賢 영남대학교 공업기술연구소 1984 연구보고 Vol.12 No.1

By doing drilling a lot of hole at the blade (select the motor fan among the axial flow type blower for air cooling) for a retrenchment of blades materials, lightening the weight of fan and reducing energy of motor. We can get the following results by comparison and examination of a experimental method of performance comparision between drilled and undrilled blades. (1) There is little difference of air flowrate by difference of hole diameter (5mm and 7mm) (2) There is a little less performance when we drill a lot of holes at all surface of blade compare with the case of no hole blade. (3) The performance tend to increased preterably when we drill holes at central part of blade compare with no hole blade.

몸과 기계의 경계 : 사이버네틱스, 인공생명, 온생명

김재영 이화여자대학교 이화인문과학원 2009 탈경계 인문학 Vol.2 No.2

Gregory Bateson described the problem of prosthesis: Whether the cane for the eye-handicapped belongs to the body of that person? This question from posthuman studies concerns the interface between bodies and machines. I approach to the question from three viewpoints: (1) cybernetics and the problem of the observers, (2) Artificial Life (A-Life) and the boundary of life and non-life, and (3) Global Life (or On-saeng-myeong) and the so-called Seoul interpretation of quantum mechanics. The proponents of cybernetics in the 1940s regarded both animals and machines as self-regulating homeostatic systems. Thus cybernetics blurred the boundary of the living and the non-living systems. Bateson, Heinz von Foerster, and Humberto Maturana discussed the fundamental problem of the “observers.” They argued that the genuine cybernetic systems must include the observer as part of the systems. Thus the interaction and the interface between the living and the non-living systems is of great significance. The researchers on A-Life concern with producing the life-as-it-could-be beyond the life-as-we-know-it. Hence A-Life seems to be suitable for the further discussion of the interface between bodies and machines. But A-Life itself lacks the ontological distinction of life and non-life. However, the theory of Global Life (or On-saeng-myeong) discusses the true nature of what life is and articulates the concept of life from the general philosophical and/or physical viewpoint. Thus it gives the better starting point of the ontological demarcation between the living bodies and the non-living machines. In that sense, the question of prosthesis can be correctly explored in the theory of Global Life. Moreover, the Seoul interpretation of quantum mechanics argues that the measurement process is not only the physical interaction between the system and the apparatus, but the transaction of communicating the informations between the observer and the observed. Therefore the apparatus for the observation should be regarded as part of the observer. The problem of observers in cybernetics can be solved from the Seoul interpretation of quantum mechanics. This article corresponds to the first part of the long-term research project of making out the boundary or interface between the living bodies and the non-living machines. I argued that Global Life and the Seoul interpretation of quantum mechanics provide with the correct starting point for this problem of prosthesis.

대학운동선수의 성격특성 비교분석

유재용, 이규문, 변재경 忠北大學校 學生生活硏究所 1980 學生生活硏究 Vol.5 No.1

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