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서욱수 釜山大學校 韓國民族文化硏究所 2001 한국민족문화 Vol.18 No.-
The purpose of this thesis is to minutely analyze the central notions that used in the epistemology of CHOE HAN KEE who epistemology that regarding part of an alternative plan of conquesting the idealism which is recognizing innate ideas of the reason in one's mind. Especially in the explanation of such notions, the most important thought of this thesis is that how his logics of the empiricism, inductivism and verification which are penetrating the whole philosophies. The matter regarding the denotation or category of the epistemlogic notion, such as, matter of the meaning is very important to explain his epistemology. Because, debating the substance of his epistemology without unified the meaning of epistemological conceptions are mo more than an ideal thought building that has unsolved fundamental mistakes of the discussions. Therefore, the researcher tried to clarify definitely this points. regarding to his epistemological conceptions, an tried to render help for understand his cognition theory. The researcher tried to examine that "the presumption" is affected deep relation with process of cognition as the middle concept, and the authority(通) is named mostly for object of cognition as the result of cognition, therefore examine amicable meaning relation for both side. For the methodological side of the epistemology, the West and China have striking difference. In case of the western epistemology, there discussed for "what is knowledge?" ; but In case of China, there is deeply related with "the source of cognition", as it were, "is it rationality? or empiricism". Regarding the origin of cognition, the West is mainly discussion matter whether it is existing innate conception or not, basis of formation of knowledge, and propriety of deduction and induction.
함수적 관계를 이용한 창의성 개발에 관한 연구 : 중학교 과정의 함수 영역을 학습함에 있어 함수적 사고를 이용한 창의적인 사고 개발에 관하여
조용욱,신수미 가톨릭대학교 자연과학연구소 2001 自然科學論文集 Vol.9 No.-
The resolutions of the NCTM show that mathematics education in the future should be focused on the problem solution. Today, the mathematics education in junior school needs the problem solving ability, but it is very difficult to achieve it. This paper deals with creativity development which use functional relation. Thus, we have a question : "what should be done to improve the student' 'problem solving ability in functional area?" First of all, in junior school, the diverse ideas and thoughts of students for functional relation should be educated, that is, the education should put forth exertions to develop the creative ability of students, and that mathematic education has to lead it. Next, most students have many questions about the functional relation and can get examples in daily life to create mathematical thought. Consequently, we can see that students' thoughts are considerably improved in junior school.
수복재에 함유된 불소가 치질의 미세경도와 불소 함유량에 미치는 영향
이수종,조영곤,김종욱,박병철 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.1
The purpose of this study was to compare the microhardness and the fluoride content of enamel and dentin around fluoride- or non fluoride-containing restorations. Forty extracted human teeth were used and prepared cervical cavities on proximal surface. Experimental teeth were divided into five groups. Group 1 : Prime & Bond NT and Z100. Group 2 : Prime & Bond NT and F2000. Group 3 : Scotchbond Multi-Purpose and Z100. Group 4 : Scothcbond Multi-purpose and F2000. Group 5 : Fuji II LC. The cavities were filled with dentin adhesives and restorative materials. After each tooth was bisected, one half was tested microhardness and the other half was analyzed the fluoride at the enamel and dentin by an EPMA-WDX device. The results were as follows: 1. There was no statistical difference among the microhardness of enamel surface in all group. 2. The microhardness at dentin of 100 ㎛ point in Group 2 and 20 ㎛ point in Group 4 was lower than that of normal dentin (p>0.05) 3. There was no statistical difference among the fluoride content of enamel surface in all group. 4. The fluoride content at the dentin of 30 ㎛ point in Group 2 and 5 were higher than those at 100 ㎛ and 200 ㎛ point in Group 2 and normal dentin (p<0.05) 5. At the dentin of 30 ㎛ point, Group 2 showed higher fluoride content than Group 1 and 3, and Group 5 showed higher fluoride content than other groups.
허근,이수진,신억섭,박종민 영남대학교 약품개발연구소 1996 영남대학교 약품개발연구소 연구업적집 Vol.6 No.-
Gastrodia elata is a medicinal plant which has been used as anticonvulsant in Korea, Japan and China. This study was conducted to examine the action mechanism of Gastrodia elata centering around the change of GABA and glutamic acid level in brain while observing the anticonvulsive effect in PTZ-induced seizure model Seizures were reduced effectively by pretreatment of ether soluble part of methanol extract of, Gastrodia elata. The pretreatment of ether soluble part inhibited not only the decreses of brain GABA level but also the increase of brain glutamic acid level observed in PTZ model of convulsive dose. Although there was not any change in glutamic acid level, the same development was also observed in the model of subconvulsive dose. From above results, it seems that the anticonvulsive component of Gastrodia elata is lipophilic, and its action mechanism is originated from both control action of GABA level and inhibition of glutaminergic neurotransmission.
Uk-su Jeong,Jae Whan Song,Kwang Joo Choi 한국ITS학회 2023 한국ITS학회 학술대회 Vol.2023 No.11
With the development of self-driving cars under way along with the Fourth Industrial Revolution, interest in the field of V2X Communication for communication between vehicles and road infrastructure is also increasing.. V2X communications share vehicle driving status information in vehicle-to-vehicle communication to prevent accidents, and in communication between vehicle and road infrastructure, vehicles are provided with information on road infrastructure, providing convenience and stability to users to enable safe driving on the road. Therefore, many countries such as the United States, Europe, and China are also developing V2X communication, and Korea is also accelerating the construction of C-ITS infrastructure, led by the Korea Expressway Corporation and local governments. However, as the C-ITS infrastructure is established, the construction of V2X communication equipment is essential, but the current situation is that there is no appropriate way to measure and verify the performance of this equipment. Therefore, this paper intends to develop equipment capable of performing performance measurement and verification of LTE-V2X equipment installed in the actual site.