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매립지 온실 가스 배출량 산정을 위한 IPCC 선정방법별 특성 연구
정성훈,황현욱,김명균,엔짜오쩡,느지오카 안토니 무투아,티네가 조셉 냐모코,김영주,Jung, Sung Hoon,Hwang, Hyeon Uk,Kim, Myung Gyun,Yan, Cao Zheng,Nzioka, Antony Mutua,Tinega, Joseph Nyamoko,Kim, Young Ju 한국자원리싸이클링학회 2016 資源 리싸이클링 Vol.25 No.5
본 연구에서는 매립 처리시설를 대상으로 1996 IPCC G/L에 제시된 Tier 1 방법과 GPG 2000의 Tier 2 방법, 2006 IPCC G/L의 Tier 2 방법을 이용하여 매립시설에서 발생되는 온실가스 배출량을 산정하였으며 각 방법론 별로 적용상의 장단점 및 배출결과에 영향을 주는 요인과 산정된 배출량의 특성을 고찰하였다. 온실가스 배출량을 산정한 결과 1996 IPCC G/L Tier 1의 배출량은 2000 ~ 2013년 기간 동안 평균 약 2,760 ton/yr로 산정되었고, GPG 2000 Tier 2의 배출량은 평균 약 1,500 ton/yr, 2006 IPCC G/L Tier 2의 배출량은 평균 약 880ton/yr로 가장 낮게 산정되었다. The purpose of this study was to estimate greenhouse gas emissions using IPCC 1996 Guideline Tier 1, Good Practice Guidance 2000 Tier 2 and IPCC 2006 Guideline First Order Decay methods from landfill disposal facility. In addition, a comparative analysis evaluating the pros and cons of each method based on assumptions and default factors was considered for each method. The greenhouse gas emission computed using IPCC 1996 Guideline Tier 1 method (2,760 ton/yr) was higher than the estimation of GPG 2000 Tier 2 and IPCC 2006 Guideline First Order Decay Model which showed 1500 and 880 ton/yr respectively between 2000 and 2013.
동측 반맹을 호소하는 후두엽-두정엽 뇌출혈 환자에 대한 복합 한의치험 1례
정성훈,배인후,김근영,조기호,문상관,권승원,이한결,정우상,Seong Hoon, Jeong,In Hu, Bae,Geun Young, Kim,Ki-Ho, Cho,Sang-Kwan, Moon,Seungwon, Kwon,Han-Kyul, Lee,Woo-Sang, Jung 대한중풍순환신경학회 2022 대한중풍.순환신경학회지 Vol.23 No.1
■Background Overall prevalence of visual field loss after stroke was estimated at 31%, ranged from 5.5- 57%. Among them, homonymous hemianopia is the most common symptom of post-stroke visual field loss and leads to a decrease in the quality of life and therapeutic effect. However, standard treatment has not been established. ■Case report A 48-year-old male with right side homonymous hemianopia by a left occipital-parietal lobe hemorrhage was treated with Qu-Ji-Du-Huang-Wan, acupuncture and electroacupuncture for 20 days. We used confrontation visual field exam, automated perimetry and visual analog scale for evaluating symptoms. Following treatment, confrontation visual field exam and the subjective discomfort was improved. ■Conclusions The present case report suggests that combined Korean medicine treatment might be an effective treatment of post-stroke homonymous hemianopia. A number of follow up studies should be conducted to clarify the effectiveness of treatment.
정성훈,Jung, Sung-Hoon 한국정보처리학회 2010 정보처리학회논문지B Vol.17 No.2
유전자알고리즘의 조숙수렴현상(premature convergence phenomenon)은 유전자알고리즘의 성능을 크게 저하시키기 때문에 이 문제를 해결하는 것이 성능향상에 크게 영향을 준다. 본 논문에서는 유전자알고리즘의 조숙수렴현상을 완화하여 성능을 향상시키기 위한 선택적 돌연변이 방법을 제안한다. 선택적 돌연변이에서는 유전자알고리즘 개체의 등급에 따라서 염색체의 특정영역에 비트를 추가적으로 돌연변이 시킨다. 이렇게 함으로서 등급이 낮은 개체는 표현형 상에서 많은 변화가 일어나고 등급이 높은 개체는 작은 변화가 일어나게 된다. 결국 좋은 개체는 그 주변을 세부적으로 탐색하며 좋지 못한 개체는 새로운 영역을 탐색할 기회가 높아지게 되어 조숙수렴현상을 완화하면서 성능향상을 꾀할 수 있게 된다. 성능향상을 측정하기 위하여 4개의 대표적 함수 최적화 문제에 적용해서 제안한 방법의 성능을 측정하였다. 실험결과 기존의 유전자알고리즘보다 성능이 크게 향상됨을 확인하였다. Since the premature convergence phenomenon of genetic algorithms (GAs) degrades the performances of GAs significantly, solving this problem provides a lot of effects to the performances of GAs. In this paper, we propose a selective mutation method in order to improve the performances of GAs by alleviating this phenomenon. In the selective mutation, individuals are additionally mutated at the specific region according to their ranks. From this selective mutation, individuals with low ranks are changed a lot and those with high ranks are changed small in the phenotype. Finally, some good individuals search around them in detail and the other individuals have more chances to search new areas. This results in enhancing the performances of GAs through alleviating of the premature convergence phenomenon. We measured the performances of our method with four typical function optimization problems. It was found from experiments that our proposed method considerably improved the performances of GAs.
Pseudo MOSFET 기술에 의한 양성자 조사 SOl 웨이퍼의 캐리어 수명 분석
정성훈,이용현,이재성,권영규,배영호,Jung, Sung-Hoon,Lee, Yong-Hyun,Lee, Jae-Sung,Kwon, Young-Kyu,Bae, Young-Ho 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.9
Protons are irradiated into SOl wafers under total dose of 100 krad, 500 krad, 1 Mrad and 2 Mrad to analyze the irradiation effect. The electrical properties are analyzed by pseudo MOSFET technology after proton irradiation. The wafers are annealed to stabilize generated defects in a nitrogen atmosphere at $300^{\circ}C$ for 1 hour because proton irradiation induces a lot of unstable defects in the surface silicon film. Both negative and positive turn-on voltages are shifted to negative direction after the irradiation. The more proton total dose, the more turn on voltage shifts. It means that positive oxide trap charge is generated in the buried oxide(BOX). The minority carrier lifetime which is analyzed by the drain current transient characteristics decreases with the increase of proton total dose. The proton irradiation makes crystal defects in the silicon film, and consequently, the crystal defects reduce the carrier lifetime and mobility. As these results, it can be concluded that pseudo MOSFET is a useful technology for the analysis of irradiated SOI wafer.
정성훈 ( Jung Sung-hoon ) 동의대학교 경제경영전략연구소 2014 經濟經營硏究 Vol.9 No.2
Recently, a low birthrate and a aging society are going in our country rapidly. Like this serious a low birthrate and a aging society derive both decrease of work force and aging of work force. So financial source will shrink, on the other hand pension payments and medical expense will increase. But in current financial condition of national pension is unstable and fund is expected to dried up according to increase of pensioners. Accordingly the role of private pension to complement public pension like national pension is important.
Ga 조성이 동시진공 증발법으로 제조된 CIGS 태양전지 특성에 미치는 영향
정성훈(Jung, Sung-Hun),윤재호(Yun, Jae-Ho),안세진(Ahn, Se-Jin),윤경훈(Yoon, Kyung-Hoon),김동환(Kim, Dong-Hwan) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.05
Effects of Ga contents of CIGS absorber layer on the performance of thin films solar cells were investigated. As Ga content increased, the grain size of CIGS films decreased presumably because Ga diffusion during 2nd stage of co-evaporation process is more difficult than In diffusion. Performances of corresponding solar cell show systematic dependence on Ga content in which open circuit voltage increases and short circuit current and fill factor decrease as Ga contents increases. At a optimal condition of Ga/(In+Ga)=0.27, the solar cell shows a conversion efficiency of 15.6% with V_{OC} of 0.625 V, J_{SC} of 35.03 mA/cm² and FF of 71.3%.
정성훈 ( Sung Hoon Jung ) 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.2(S)
Advances in the treatment of chronic liver disease have resulted in higher conception rates and more successful pregnancy outcomes. So it is important for physicians caring for such patients in complex clinical situation, pregnancy, to understand how to approach complications and tailor medications. Chronic HBV infection is usually mild in pregnancy, but may flare after delivery. Antiviral treatment near or during pregnancy must be individualized. Currently, lamivudine, tenofovir and telbivudine can be used during pregnancy. The role of antiviral therapy in 3rd trimester to minimize risk of vertical transmission remains indefinite. In general, the HCV infection does not affect the clinical course of pregnancy despite of limited reports of prematurity and low birth weight. At present, there are no recommendations for the treatment and measures to prevent vertical transmission. The course of autoimmune hepatitis in pregnancy is highly variable and stable immunosuppression with steroids and /or azathioprine should be maintained during pregnancy and postpartum period. Patients with Wilson`s disease must be adequately treated before pregnancy and continue on therapy throughout pregnancy. Most patients with advanced cirrhosis are infertile, but successful pregnancy is achievable in case of mild compensated disease with careful monitoring. Successful pregnancies after liver transplantation have been reported but remains high risk. Closer monitoring, especially of immunosuppression is needed. Unfortunately, the optimal management of pregnancy with chronic liver disease is undefined to date. Further clinical studies are necessary to overcome this weakness.