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초고성능 콘크리트 시공조인트의 전단부착성능 평가에 관한 실험적 연구
장현오,이한승 대한건축학회 2017 대한건축학회논문집 Vol.33 No.6
It is necessary to involve the characteristics and quantitative surface treatment at the same time in order to retain oneness of Ultra-High-Performance Concrete(UHPC) according to construction joint occurrence. Therefore, this study derives a reasonable surface treatment method in a material's point of view through the shear adhesion performance evaluation according to the construction joints surface processing method as a part for securing the adhesion performance of the construction joints when casting UHPC. 200 MPa of required average strength was used for mix of UHPC and surface treatment method was set to totally 6 level that MN-0, AC-0, WJ-0, GR-10, GR-20, GR-30. After the specimen were manufactured to a size of <TEX>$300{\times}640{\times}150mm$</TEX>, Push-off test was performed to evaluate the shear adhesion strength. As a results, the bonding shear performance was increased when executing a surface treatment for the construction joint interface. As the increases in length of grooves every 10 mm, the bonding shear performance increased about 2.3 times. In this study, it is judged that 30 mm of groove length would have had an advantage for securing the monolithic of concrete. Also, the interface of cross section and the number of grooves should be considered to increasing in the bonding shear performance of concrete.
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장현오,김영균,오세욱,박용원,이홍섭 인제대학교 2000 仁濟醫學 Vol.21 No.2
Congenital coronary artery fistulas are very rare, but by widespread use of echocardiogram and selective coronary angiogram, have been recognized with increasing frequency. Most congenital coronary artery fistulas drain into the right heart chambers or pulmonary arteries, but there are rare instances in which the fistulas drain into the left heart. The symptoms seen in the congenital coronary artery fistula include angina, dyspnea and palpitation. A number of patients with congenital coronary artery fistula are asymptomatic. Coronary artery fistulas are amenable to surgical correction. Early treatment, especially in the asymptomatic young patient, can prevent the appearance of later symptoms or complications. Definitive diagnosis relies on cardiac catheterization, but diagnostic sensitivity and safety of echocardiography in detecting abnormal coronary artery connection are high in high risk young patients. We experienced 4 cases of surgically corrected coronary artery fistula in asymptomatic pediatric patients. So we report 4 cases of coronary artery fistula with brief review of literature.
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張鉉五 부산대학교 사범대학 1987 교사교육연구 Vol.15 No.-
In this paper I intend to consider G.E. Moore's philosophical method which is scattered in all of his writings. He wrote little about his method, even though in 1942 it is given the shortest discussion of the three main topics, that is, philosophical method, ethics, and perception, his energies were given to practising, not reaching it. But I think that the main method of his philosophizing is a philosophical analysis which may be seen in the fact that he and Russell dealt severe blows to the idealistic philosophy which had dominated Britain for many years. Especially, Moore has spent much of his life discovering and pointing out the confusion into which philosophers got when they talked about whatever they did happen to talk about. Therefore he was devoted entirely to clarifying and analyzing what other philosophers talked about. And hence he was concerned with pursuing their meaning and giving an analysis of it. The discussions of this paper may be summerized as follows: 1) The source and, in a sense, part of the direct subject master of Moore's philosophizing lie in the assertions which were made by other philosophers, not the building of the great systematic theory. And so he finds many these assertcons to be extremely peculiar and perplexing, and does his best to understand them, to analyse them, or to refute them. Moreover, Moore was also concerned with the central matters of traditional philosophy which had been consisted of metaphysics, epistemology and ethics. The metaphysics for Moore is to show only that there are in the universe such things as physical objects, sense-data, acts of consciousness, propositions, concepts, etc. Naturally, this sort of description is not that of a consistent and unified system like traditional metaphysics. 2) One of the Moore's main philosophical method is an appeal to common sense and a use of ordinary language. In the works of the philosophers, Moore encounters various assertions which he could find no good reason to believe, assertcons which often denies what every normal man knows very to be true like McTaggart's proposition 'Time is unreal'. Over against the propounding of such strange and paradoxical assertions, Moore insists upon uttering the statements of common sense and holds such statements to be certainly true. And again he expresses such statements as ordinary language which everyone understands very easy. Furthermore he translates monstrous assertions of idealists into ordinary language, and hence he points out and refutes inconsistencies of such assertcons. 3) The other of Moore's method is a pursuing of meaning and analysis. Moore clearly refers to two different kinds of meaning: one an ordinary, commonsensical sort of meaning, the other a technical one which involves. We often know the meaning of an expression in the first sense, even though we do not know the meaning in the second sense. But there is a lot of meaning to cover between ordinary meaning and analysis. And generally speaking, Moore's works reveals at least five meanings of meaning. They are consistently employed one or more of them are always presupposed and mentioned and discussed. Five kivds of meaning that Moore analyzes are as follow: ① the sense of an expression in ordinary parlance, ② the use of an expression, ③ the verbal definition of an expression, ④ the referent of an expression, and ⑤ analysis. Finally, I don't think this paper throughly analyzes Moore's philosophical method. Because it is extremely analytic and entangled with many kinds of philosophical problems. And so I intend to leave a furthermore exact analysis and study about Moore's methodology as a task for the future.
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마르크시즘과 倫理問題에 관한 一考察 : 마르크스의 人間觀을 中心으로 Mainly focus on K.Marx's anthropology
張鉉五 부산대학교 사회과학대학 1984 社會科學論叢 Vol.3 No.1
In this paper I intend to examine K. Marx's anthropology which his ethical feelings for man is melted in his early thoughts. Its subject matter is the man who is able to realize himself, to be free from restrictive forces and oppressions, and is not alienated from anything that K. Marx looks forward to. The man means, for K. Marx, happy existence of self-activity as subject of man himself, nature and history in the human societies. But, the real aspects of man in the age of K. Marx are driven into a miserable and gloomy life. Therefore the Vision of K. Marx's ethical anthropology is humanism, and seems to be the letter of plea in order to liberate man who is alienated by ways of four types and is oppressed from the actual social systems rather than enjoyments of his life in this world. K. Marx's protest for liberation of man, in his early thoughts awake man's self-aspects which were self-reflection, self-realization, self-creation and his social progressive improvements, but his thoughts fell into the theory of revolution by stressing on revolutionary praxis with a hasty hope of messian human emancipation. The discussions of this paper may be summarized as follows. 1) K. Marx's thought do not evidently include the theoretical systems of ethics and moral philosophy, but has only his ethical impulses which are hidden in his social theories which mean the humanistic theories aiming at the realization of a freeman and human emancipation. If they are sublimed into the theories for the self-awakening of man, we have worth while preferring them to others. However he ruined his theories by taking revolutionary theory for rash praxis. 2) The essence of man in which lies the activities of one's freely active and productive self-creation, for K. Marx, really exists, and is no abstraction inherent in each separate individual. This view seems to have a very strong appeal on the side of humanistic ethics which stresses a man as the master and subject of one's life, while it bring s about the totalitarianism restraining a man, such as Soviet Communism, on the ground of K. Marx's assumption that a man exists only as a member of whole society and is only significant as a constituent of certain social classes. Therefore his humanistic view point includes inconsistent statements, and hence we can never adopt his humanistic theories without any examination or reflection about them. 3) K. Marx deals with the problem of alienation as the main and ultimate part of his humanistic thoughts. According to him, a man can not help being alienated from himself and his products under the capitalistic system. This opinion stems from his anticipation of coming communism as the analysis and prescription of early capitalistic systems containing all kinds of social vicious appearances. But the appearance of alienation do not necessarily arise from the capitalism, but the conscious status of man which does not feel himself as master. Therefore the concept of alienation, I think, depends upon the status of consciousness of man, and then interpretation of K. Marx's concept of alienation is not adequate. 4) His historical interpretation of materialism enunciates the law of historical development, and his explanations are contrary to two aspects. He maintains that ways of material production determine the social, political and mental characteristics of human life and at the same time a man is the subject of all ways of material production and history. I think this seems to mean the interrelations between man and ways of material production in the development of history. But he makes an ambiguous attitude in determining what is the subject of developments of history between man and ways of material production. Finally, I don't think this paper throughly analyzes his thoughts. Because there are extremely entangled with many kinds of thoughts, that is, English economics, German philosophy, French Socialism, and so on. But I think that however are they intricate thoughts, it is very significant for us to examine his thoughts in order to overcome cruel communism.
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