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J.Piaget의 발생적 견지에서의 思考의 구조와 정보처리 접근에서의 지식의 구조에 대하여
윤병희 慶尙大學校 1988 論文集 Vol.27 No.2
According to Piaget's genetie view point of epistemology, the struture of knowledge is directly related with the structure of thought. And The logical thought develope from response-schema and logical implication develope from assimilation on the level of sensory-motor intelligence. The knowledge is active construction based on a assimilatiory schmata.And then the stracture of knowledge must structure of a logic of whole and construct the psycholigical reality. According to him. psychological reality is a world of experiened necessity and comprehension but the world of formal logic is that of pure thought accompanied by a feeling of logical necesity and is possible to explain. So, Psychologial reality and the world of pure thought must be discerned. But according to information processing approach they are not discened and are studied without any developmental relations of them. I hope that Piaget's view will give some suggestions to the studies from information processing approach.
윤병희 慶尙大學校 1990 論文集 Vol.29 No.1
The psychological reality of the child's mind is constructed with the age and extended to adult without any fundamental change. The psychological reality is catched by the studies from J.Piaget's genetic approach for the intelligence which is the main concept in child's cognitive psychology and from the information processing approach. From the former view point, child's psychological reality is identified to have a inner structure of 'the logic of wholes' for conservation, which is different with 'the logic of totality' for transformation, and is the world of experiencing and understanding by way of action schema, not being the explicative world by way of operative schema. 'The logic of wholes' is of conservation of the whole systems of groupings, from which subsystems are differentiated and the conservation is of the invariant of the wholes. And the logic of wholes is free from the subject's view points and the perceptual deformations of objects by the coordination of assimilatory schema and that of subject's view point. Psychological reality is based on the assimilatory scheme, concept, and propositions and governed by the mobile equilibration which is different with progressive regulation and which is of the operations of negation and reciprocity respective, but not of the combined operation of negation and reciprocity.
Stabilizing Morbidity and Predicting the Aesthetic Results of Radial Forearm Free Flap Donor Sites
Yun, Tae Kyoung,Yoon, Eul Sik,Ahn, Duck Sun,Park, Seung Ha,Lee, Byung Il,Kim, Hyon Surk,You, Hi Jin Korean Society of Plastic and Reconstructive Surge 2015 Archives of Plastic Surgery Vol.42 No.6
Background The radial forearm flap is a versatile, widely used flap. However, the possibility of donor site complications has led to concern over its use. Some surgeons prefer using other flaps whose donor sites can be closed primarily with less morbidity, including avoiding unpleasant scarring. However, in our experience, donor site stability of the radial forearm flap can be reliably achieved by using well-implemented specific procedures. Here, we present a collection of donor site cases of the radial forearm flap and investigate factors that affect the aesthetic results as the basis for a reference for selecting a radial forearm flap. Methods In this retrospective study, we reviewed 171 cases in which a radial forearm flap was used for free tissue transfer after resecting head and neck cancer. We focused on donor site morbidity rates. Each operation involved a detailed procedure designed to minimize donor site morbidity. Moreover, statistical investigations were conducted for 22 cases to determine factors affecting the scar appearance. Results Only one case developed total skin graft necrosis as a major complication. Scar-related aesthetic results were acceptable, and the body-mass index, body weight, diabetes, and cardiac problems were significant factors related to the appearance of scars. Conclusions Performing the radial forearm flap using a well-implemented detailed technique helps achieve acceptable donor site morbidity results. The aesthetic results were more promising for patients without excess body weight, diabetes, or cardiac problems. Therefore, anxiety about donor site morbidity should not be a reason to avoid selecting the radial forearm flap in suitable patients.
尹麒炳,安且完,安在元,金秉熙,卞在郁 現代醫學社 1968 現代醫學 Vol.9 No.1
The authors investigated the incidence and intensity of intestinal helminths among the school children and the inhabitants in the city of Taegu. The rate of infection was carried out by the concentration of MCL method and intensity by the modification of stoll method. The results were as follows:
동시진공증발법을 이용한 고효율 CIGS 박막 태양전지 개발
윤재호(Yun, Jae-Ho),안세진(Ahn, Se-Jin),안병태(Ahn, Byung-Tae),박희선(Pak, Hi-Sun),윤경훈(Yoon, Kyung-Hoon) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
CIGS 박막 태양전지는 제조단가가 낮고 박막 태양전지 중에서 변환효율이 가장 높아 발전 가능성이 큰 태양전지로 인식되고 있다. 이미 일본, 독일, 미국을 비롯한 선진국에서는 30-50 MW 급의 양산 라인이 구축되고 있어 2010년 이후에는 본격적인 상용화가 진행될 것으로 보인다. CIGS 광흡수층은 진공증발, 셀렌화, 나노입자, 전기도금등 다양한 방식으로 제조가 가능한데 이 중에서도 동시진공증발공정은 고효율 CIGS 박막 태양전지 제조에 적합하다. 본 연구에서는 동시진공증발법을 이용하여 CIGS 박막을 증착하였으며 소다회유리/Mo/CIGS/CdS/i-ZnO/n-ZnO/Al/AR 구조의 태양전지를 제조하였다. 기판온도 모니터링을 통한 Cu 이차상 조절 기술을 이용하여 결정립이 매우 큰 CIGS 박막을 증착하였으며 Ga/(In+Ga) 조성비의 조절을 통하여 밴드갭 에너지를 최적화하였다. 또한 QCM 장치를 활용하여 용액 속에서 성장되는 CdS 박막의 두께와 특성을 조절하였다. 이러한 공정최적화를 통하여 개방전압 0.65 V, 단락전류밀도 38.8 mA/cm², 충실도 0.74 그리고 변환효율 18.8% 의 CIGS 박막 태양전지를 얻었다.