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반응표면분석을 이용한 플라이애시 혼입 기포콘크리트의 비강도 특성에 관한 연구
이상안(Lee Sang-An),김화중(Kim Wha-Jung),김재경(Kim Jae-Kyung) 대한건축학회 2010 大韓建築學會論文集 : 構造系 Vol.26 No.7
There have been several investigations in the past on the influence of mixture composition on the properties of aerated concrete. This paper discusses the relation of empirical models for compressive strength-apparent density and flexural strength-apparent density of aerated concrete through statistically designed experiments. The response surface plots helps in visually analysing the influence of factors on the responses. The relative influence of fly ash replacement, water-binder ratio and hydrogen peroxide-binder ratio on strength and density of aerated concrete is studied by comparing it with main effect plot. The mutual influence of fly ash replacement, water-binder ratio and hydrogen peroxide-binder ratio on strength and density of aerated concrete is studied by comparing it with interaction plot. Specific strength of aerated concrete is higher in 0% and 35% of fly ash replacement.
이상안 대구대학교 (한사대학) 사회복지연구소 1980 社會福祉硏究 Vol.8 No.-
The primary purpose of this paper attempts to define both the ideology and. concepts of social welfare in contemporary sense and its systematic strategy, identifying the similarity among social welfare, social development, and social welfare in modern times studies especially in related to the contemporary social problems. and dilemmas. And then the ideology of social welfare is devided two views, microscopic orie nlation and macroscopic orientation. Thus, microscopic orientation approaches to social work methods and macroscopic orientation to structuaral or systematic method, especially Integrated systematic method. According to this views and definition, social welfare is not defined. to the part of social particular problems such as deases, support for the poor, benefits for the old, the handicapped and javenile delinquency, etc. but related to the whole social system, such as political sides, eonomic sides, social sides etc. In this regard, social welfare policy is an elusive concept used frequently as a. synonym for social policy and public policy, both of which are broader in scope and more inclusive than the concerns of what we could designate as social welfare policy. While, the concept of social development is ultimately oriented to the welfare society making. Thus, social development may be characterized most accurately as. a social welfare policy whose core function is mutual support activities and services. for all people inclued normal people especially whole society is consist of several sub-systems such as political system, economic system, social system etc. Whole system is connected several sub-systems as well as among sub-systems and sub-system, In view of the observation it may be argued that social welfare policy should be conducted as a social development and its policy and social welfare policy should be viewed as macroscopic orientation as well as microscopic orientation. In sum, social welfare may be characterized most accurately as an emerging institution whose core function is not regulation, but mutual support and service. Historically, mutual support activities are secondary functions of other institutions, mainly family and religion. Modern times have brought increasing demands on such activities as our conceptions of need and standard of well-being have changed. Finally, while social welfare is described have as an imerging institiution which is systemized by system theory, there are certain eligibility requirement for social welfare benefits that give credence to the residual conception.
李相安 韓社大學 1980 대학논문집 Vol.10 No.-
It is not aim of this paper to delve on these problems and inadequacies faced by our higher educational systems. Rather, what I am concerned to present in this paper are the higher educational Organization and management reforms and innovations adopted by universities and colleges. Generally. institutions of higher learning whether colleges or universities, public or private supported, have three main areas of concern-instruction, research and extension or community services. In particularly Extension or community development Services as a program of higher education institution is being recognized as a social function of the university in our community. Thus, many universities have included in their total academic programs such social activities as education programs, community health, family planning and related field work activities which branch out into the community. So as to this purpose, first of all, the university extension program is directly to contribute to the community and the nation. In the second place, The three roles of functions of higher education in our social life should be integrated in program structure. further more, university planning is needed in a changing world. For this reason university planning needs our best talents, the best feedback from our educational assembly line. That is why a wise strategy has to be selected. Finally, universities has Development organizations and systematic management. That is to say, the structure of universities is institutionzed as the formal organization which is consisted of top executives, dean head of department. faculty Groups. Above all, among the formal organization, faculty groups are institutionized by themselves and have to generate their creative leadership in the course of decision making. In Sum, the university organization is to integrate all of this functions. This is a wise strategy and development core in university system. The end.