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홍준화 ( Hong Jun Hwa ) 한국미학예술학회 2003 美學·藝術學硏究 Vol.18 No.-
N/A Consequently, the formal quality in the plastic art is that established through the artistic explication of existence and reality, legal visual-artistic abstract and abstractive process that create plastic space. Therefore, it is, not the pure conceptive form, a special product that gave as embodiment through that. The character of plastic form that related to a problem of artistic reform is that realized through the unity of sensitive and spiritual intuition and unity of world and spirit that applied the cogmtion of phenomenal world and cognition of artistic form. The plastic form is, only not general reproduction of reality and virtual production of fancy, that is involved the visual-conceptive-artistic total value that gave as translation of reality. Therefore, the aesthetic problems of artistic forming in the plastic arts essentially started from a point of view that the characters of the artistic form simply didn`t kept on the conceptual or material side. It started from the deduction that K. Fiedler`s `the corrective cognition of the world`, A. von Hildebrand`s `the artistic forming`, and R. Arnheim`s `the visual-perceptional principle` must to be unified and developed. The conclusion of study of the artistic forming was that the problems of artistic forming in the plastic arts is demanded artistic re-formation for a realization of `the formal property`, then, the character of artistic form, was that have to be the aesthetic or artistic value as `the unified-form of world and spirit. So, the aesthetic problem of artistic forming must get out of the narrow objection of study or method of study, in other words, it must has the progress to the higher task that get on with the `visual-conceptual-artistic dimension`.
오용준(Yong Jun Oh),이봉상(Bong Sang Lee),홍준화(Jun Hwa Hong) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8
A small punch (SP) test was performed to evaluate the ductile-brittle transition temperature shift by neutron irradiation in reactor pressure vessel (RPV) steels. The results were compared to the standard transition temperature shifts from Charpy test and Master Curve fracture toughness test in accordance with the ASTM standard E1921. The samples were taken from 1/4T location of the vessel thickness and machined into 10×10×0.5mm dimension. Irradiation of the steels was carried out in the research reactor at KAERI (HANARO) at about 290℃ to the different fluence levels respectively. SP tests were performed in the temperature range of RT to -196℃ using a 2.4mm diameter ball. For the materials before and after irradiation, SP transition temperatures (T<SUB>sp</SUB>), which are determined at the middle of upper and lower SP energies, showed a linear correlation with the Charpy index temperature, T<SUB>41J</SUB>. But, the transition temperature shift from the Charpy test (ΔT<SUB>41J</SUB>) shows better correlation with the transition temperature shift (ΔT<SUB>sp(E)</SUB>) at a specific SP energy level (E) than that (ΔT<SUB>sp</SUB>) determined at the middle energy of SP curve. The T<SUB>sp(E)</SUB> had a meaningful correlation with the reference temperature (T<SUB>o</SUB>) from the master curve method using a pre-cracked Charpy V-notched (PCVN) specimen. From the microscopic approach to the fracture mechanism in the SP and standard PCVN specimens, the authors found a linear correlation between local fracture stresses in the two different specimens. This provides the feasibility for applying the SP technique to predicting T<SUB>o</SUB> value from the standard test.