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Won, Hyun Kyu,Jeon, Hyon Sun,Han, Hee,Lee, Seung Jung,Jung, Byung Heon Institute of Forest Science 2017 Journal of Forest Science Vol.33 No.4
This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.
Hyun Kyu Won,Hyon Sun Jeon,Hee Han,Seung Jung Lee,Byung Heon Jung 강원대학교 산림과학연구소 2017 Journal of Forest Science Vol.33 No.4
This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.
국내·외 누설률에 관한 기준 분석을 통한 국내 연기제어 기준 개선에 관한 연구
김혜원 ( Kim Hye-won ),한지우 ( Han Ji-woo ),이병흔 ( Lee Byeong-heun ),진승현 ( Jin Seung-hyeon ),권영진 ( Kwon Young-jin ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
On this Study, it conducts the Standards investigation about air leakage of Buildings for performance improvement of Smoke control in Fire. In domestic standards, it is incomplete the Criteria standards of air leakage. Therefore it is considered that won’t limit the smoke spread due to stack effect. But in the case of the United States, it conducts the Hot smoke air-Leakage test and it consider that can prevent the Smoke Spread in Compartment.
건조방법에 따른 하수슬러지 건조속도 비교 및 경제성 평가
박성훈 ( Seong-hun Park ),김한석 ( Han-seok Kim ),이승원 ( Seung-won Lee ) 한국환경기술학회 2021 한국환경기술학회지 Vol.22 No.3
In this study investigated the effect of the chemical injection ratio on the drying rate of sewage sludge. Then the economic efficiency was evaluated by comparing the results of the NIR(near infrared ray) and microwave drying rate test. The near infrared ray device showed drying speed of 31.9 %, 28.1 %, and 27.1 % at polymer dose ratio of 8 %, 10 %, and 12 %, respectively. Compared to 8 % polymer dose ratio, polymer dose ratio of 10 % and 12 % showed differences of 8.0 % and 13.6 % respectively, suggesting that drying efficiency decreased as polymer dose ratio increased. The microwave device showed drying speed of 26.2 %, 24.3 %, 21.3 % at polymer dose ratio of 8 %, 10 %, and 12 %, respectively. Compared to 8 % polymer dose ratio, polymer dose ratio of 10 % and 12 % showed differences of 5.2 % and 13.4 % respectively, suggesting that drying efficiency decreased as polymer dose ratio increased. Drying evaluation estimated the treatment cost of near infrared ray device at optimal dose ratio(6 %) was 35,591 won/ton while that of actual dose ratio(8 %) was 38,928 won/ton. Drying evaluation estimated treatment cost of microwave device at optimal polymer dose ratio(6 %) and at 8 % to be 16,683 won/ton and 18,352 won/ton, respectively.
( Seung Duk Lee ),( Seong Hoon Kim ),( Young Kyu Kim ),( Sung Sik Han ),( Sang Jae Park ),( Bo Hyun Kim ),( Joong Won Park ),( Chang Min Kim ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background: Although graft local infusion treatment and splenectomy has been established as an pivotal strategy in ABO incompatible (ABOi) living donor liver transplantation (LDLT), the procedure is associated with a high rate of catheter- associated complications. Methods: At January 2012, one patient of ABOi LDLT was performed in National Cancer Center, Republic of Korea. Our institution protocol for ABOi LDLT was planned using rituximab 300mg/m2 at preoperative 2 weeks, several plasma exchanges (PE, target: isoagglutinin titer ≤ 1:8), basiliximab 20mg operation and postoperative 4 day, and routine immune globulin (IVIG, 0.8g/day) at postoperative 1 and 4 days without splenectomy and local infusion treatment. Results: Forty-one year old male patient was admitted due to hepatitis B virus related liver cirrhosis with Child-Turcotte- Pugh classification C and MELD score 25 points. ABO type of the patients was Rh+ B. He received the Rh+ AB right liver from a related young male donor. Initial laboratory results including CD19 and isoagglutinin titier were 14.1% (normal range : 6-23%) and 1:128 (anti-A), respectively. He received rituximab over 2 weeks before LDLT, followed by 4 times PEs, basiliximab and IVIG. We did not perform the splenectomy and local infusion treatment via portal vein or hepatic artery. The patients discharged at postoperative 14 days without any infections, biliary complications, and rejections. After 1 weeks of transplantation, isoagglutinin titer was maintained with 1:16 without PE, and CD19 level with 0.1%. During 1 month follow- up, his bilirubin was normal and alive without complications. Conclusion: The new ABOi-LDLT protocol using rituximab, PE, basiliximab, and IVIG, without the local infusion and splenectomy seems to be performed safely.