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박종섭,신종선,임삼조,김영규 대한피부과학회 1971 大韓皮膚科學會誌 Vol.9 No.3
The one case of sparganosis is described, the patient, 45 years old male, had adult fist sized tumor mass on scrotum for 3 year's duration and removed 4 adults sparganum mansonoides by surgical operation. Attention is calIed to the importance of sparganosis in subcutaneous swelling or tumor because of to took lived snake or non-boiling water in customary at Korea.
PLA 막에 의한 백서 두개골 재생의 in vivo 마이크로CT 분석
박종섭 대한치과재료학회 2012 대한치과재료학회지 Vol.39 No.1
In this research, it was intended to compare with bone regeneration ability of PLA membrane coated by air-blasting with bioglass (BG) or hydroxyapatite (HA) in rat calvaria model in vivo. Two bone defects 5mm in diameter prepared in 11 rat calvaria were covered with PLA, PLA-BG, PLA-HA membranes and control group remained uncovered. At 2, 4, and 8 weeks after surgery, in-vivo 3-dimensional micro-CT scan of calvarium was performed. Regeneration of bone was evaluated with percent bone volume (BV/TV)and trabecular bone pattern factor (Tb.Pf) as parameters for volume of new bone formation and bone quality, respectively, using an image analysis software at each period. The BV/TV value of PLA-BG were significantly higher than those of other groups (P<0.05), but another experimental group did not showed statically significant differences in Tb.Pf values. The change of mean TPF value from 2 week to 8 week, at each period, Tb.Pf value of PLA-BG and PLA-HA groups were significantly lower than that of PLA or control groups (P<0.05), indicating increased quality of new bone. Generally, PLA-BG group showed higher number and thickness of boney trabecular pattern that others. The results of this study suggested that PLA membranes with bioglass (PLA-BG) or hydroxyapatite (PLA-HA) can be potential aids for bone formation and regeneration against some bony defects.
상부플랜지 연속 횡지지에 따른 초간편 H형강의 횡-비틀림 좌굴강도식 비교에 관한 연구
박종섭,이선호,윤기용,박정웅,김상섭,Park. Jong-Sup,Lee. Son-Ho,Yoon. Ki-Young,Park. Jeong-Ung,Kim. Snag-Seup 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
Design equations for calculating the lateral-torsional buckling moment resistances of I-section beams with continuous lateral top-flange bracing subjected to several loading conditions are investigated based on elastic finite-element analyses. The equations presented in this study are compared with current moment gradient modifiers presented by other researchers and specifications. The equation suggested in the SSRC Guides(1998) has a good agreement with the results of finite-element analyses. The moment gradient correction factors proposed in the SSRC Guides(1998) should be easily used to calculate the lateral-torsional buckling moment resistance of I-beams with continuous lateral top-flange bracing.
박종섭 충북연구원 2001 지역정책연구 Vol.12 No.1
This paper is to analyze the impact of government expenditures on the economic growth empirically through the endogenous economic growth model. If the relative scale of government expenditure passes a ce rtain level, then the economic growth ra te decreases when the portion of financial expenditures increases in the Gross National Product(GNP). This paper tested the hypothesis, and based on th is, the re su lt is: The increment of government expenditures has a negative impact on the economic growth in Korea. This may be because the relative scale of government expenditures is too much compared to the appropriate level, or the efficiency of expenditures is too low. And also, the hypothesis, "The higher the investable expenditure in the government expenditures, the higher the economic growth rate" has different resu lts depending on the period. As an investable government expenditures, the increment of the educational fund has an positive impact on the economic growth during the period of 1957 to 1980,bu t it is s ta tistica lly insignificant from 1981 to 1999. On the other hand, the increment of the portion of the expenditure which is targe ted to the economic development has sta tistica lly significant negative impact on the economic growth. From the policy prospective, this research suggests the following re su lts; The expansion of government expenditures might restrain the economic growth in Korea. Therefore, we should reduce the size of government for increasing the economic growth. In addition to this, we need more efficient distribution of government expenditures. There are many variables which can affect economic growth: therefore, not only government expenditures, but also the others should be considered in the analysis. For the comprehensive understanding of economic growth, we must include all possible variables and develop a more suitable model in future research. -