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EU RED-II 방법론을 적용한 국내 미이용 바이오매스 케나프 펠릿의 전과정 온실가스 배출량 산정
김연일,정선영,조영재,윤성,엄병환 한국화학공학회 2023 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.61 No.2
The greenhouse gas (GHG) emission assessment of kenaf pellet, produced from locally generated kenaf residues in South Korea, has been studied based on the EU RED-II methodology for calculating GHG impact of biomass fuels. Based on the production pathway of kenaf residue pellet and emission coefficients from EU JRC report, the life cycle GHG emission of kenaf residue pellet is assessed as 3.0 gCO2eq/MJpellet and the life cycle GHG emission of electricity generated from kenaf residue pellet is assessed as 11.9 gCO2eq/MJ when electrical efficiency of final conversion is 25%. The potential GHG emission reduction of electricity produced from kenaf pellet is 90.3% compared to the domestic electricity emission factor 42.8 kgCO2eq/MWh. Also, the electricity produced from kenaf pellet can reduce at least 59.6% of GHG emission compared to the electricity produced from imported wood pellets.
김연일,임수재,이영구,김명회 순천향대학교 순천향의학연구소 2010 Journal of Soonchunhyang Medical Science Vol.16 No.2
Among ankle fractures, lateral malleolar fractures are being treated in various ways. In this study, fracture fixation was conducted using lag screws and neutral plates in lateral malleolar fractures, and its clinical and radiological satisfaction was evaluated. The subjects of this study were 296 cases, who could be followed up for one year at least, among 1,297 patients who had received surgical treatment for ankle fracture from 2000 to 2008. Among total 296 cases, the results were shown to be satisfactory through Meyer’s method, such that their clinical satisfaction was observed in 262 cases and radiological satisfaction in 257 cases. Although there are diversified fracture surgeries, lag screws and neutral plates were used in this study, and it is deemed that rather operational skill than operational method most significantly influences the operational result.
김연일,한성우,정호원,서유성 순천향의학연구소 2002 Journal of Soonchunhyang Medical Science Vol.8 No.1
The ankle joint is a modified complex hinge joint which plats an important vital role in normal gait, walking and weight bearing. The goal in the treatment of ankle fracture is the restoration of full function to the injured extremity such restoration can be accomplished only with full appreciation of the fracture, the concomitant soft tissue injuries and mechanical demands of the joint involved. The authors have reviewed a series of 131 cases of ankle fractures which were admitted and treated in orthopaedic department of Sunchunghyang university from Feb. 1994 to Oct. 2000. Among the 131 cases ,69 patients (52.7%) were male, and 62 patients (47.4%) were female. Peak incidence of age was 20-30 years old (55 cases, 42.5%). The main causes of injuries were slip down (84 cases, 64.1%) and the other causes were traffic accident (24 cases, 18.3%), rolling down (7 cases, 6.3), fall down (6 cases, 4.6%), direct blow (5 cases, 3.8%), sports injury (4 cases, 3.1%), human trouble (1 cases, 0.7%) in order. Accompanying injuries were noted on 32 case (23.4%) and fractures in lower extremities were most common (15 cases, 46.9%). Supination-external rotation injuries were most common by the Lauge-Hansen classification (53 cases, 40.5%) and type B ankle injuries were most common by the Danis-Weber classification (67 cases, 51.2%) type B2 ankle injuries were most common by the AO classification (44 cases, 33.6%). Open reduction was performed in 95 cases (72.5%) and closed reduction was performed in 36 cases (27.5%). The result was better in those cases which were treated by open reduction and internal fixation than those by closed reduction. SO anatomical reduction and firm internal fixation of the fibula and repair of the distal tibiofibular ligament or transfixation of the distal tibiofibular joint with screw were thought to be very important in the management of the ankle injuries.