초임계 유체를 이용한 미세조류 바이오디젤의 직접 생산

유종훈,문성식 水原大學校 2014 論文集 Vol.28 No.-

In this study, we attempted to evaluate the feasibility of a supercritical methanol process for direct production of biodiesel from microalgae. The effects of various factors such as temperature, reaction time, water content and pretreatment on the efficiency of biodiesel conversion were investigated. The conversion efficiency increased with both temperature and extraction/conversion time. The supercritical methanol process produced a fatty acid methyl ester (FAME) yield of around 88% within 20 minutes. The optimal conditions for this process were found to be a microalgae/methanol ratio of around 1:9, a reaction temperature of about 270℃, and a reaction time of approximately 20 minutes. The effect of water content in microalgae samples on the FAME conversion was also evaluated. The supercritical methanol process was not affected by the water content up to 250 wt%. Our experiments demonstrated that the supercritical methanol process is more effective compared with conventional in situ transesterification processes.

[논문]斜角을 고려한 곡선 Box Girder교의 거동에 관한 연구

박성진,이승훈,진치섭 釜山大學校生産技術硏究所 2003 生産技術硏究所論文集 Vol.62 No.-

일반적으로 국도상의 교량은 기존도로의 확장이나 주변지형의 영향 등을 많이 받기 때문에 기하학적 형상이 직선교보다 사교나 곡선교인 경우가 많다. 예를 들어, 고속도로 인터체인지 및 도심지 내의 입체교량 둥에서 교통의 흐름을 원활히 하기 위해서 곡선 교량이 본격적으로 설계 · 시공되고 있다. 또한 구조물의 현장조건에 따라서 사각(skew angles) 이 있는 곡선교의 시공이 불가피하게 되었다. 본 연구에서는 절판구조물로 구성된 단면형태를 가진 곡선교에서 사각의 크기 및 곡률변화에 따른 구조물의 거시적인 거동을 유한요소 범용 프로그램인 SAP2000을 사용하여 비교 · 분석하였다.

법랑아세포종의 임상병리학적 연구

성일용,류성호,신상훈,김욱규,김종렬,정인교,변기정 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.1

The authors analyzed retrospectively the 60 patients with ameloblastoma who were treated at Department of Oral and Maxillofacial Surgery, Pusan National University Hospital from MArch, 1990 to December, 1995. The results obtained were as follows: There were 26 males (43.3%) and 34 females (56.7%). The peak age of patients was the third decade (41.7%). The majority of cases occurred in the mandible 93.3%, especially in the angle region (91.1%). Eighteen of 60 patients (30.0%) were associated with an impacted tooth, by impacted 3rd molar teeth (16.6%), molar (10.0%), and premolar and canine (3.4%) in order., Fifteen of 60 patients (25%) were associated with an odontogenic cyst, by dentigenous cyst(13.3%), odontogenic keratocyst(8.4%), and radicular cyst(3.3%) in order. Radiographically, there were 32 unilocular types(54.2%) with average age of 24.9±10.8 years, 14 multilocular types(23.7%) with average age of 35.7±17.7 and 13 mixed types(22.0%) with average age of 41.4±15.8. Histopathologically, there were 42 follicular types(70.0%) with average age of 33.7±15.1 years and 18 plexiform types(30.0%) with average age of 26±14.6. Conservertive treatment was performed in the 33 patients(55.0%) and their average age was 25.2±13.9 years and radical treatment in the 27 patients(45.0%) and their average age was 39.3±41.8. Overall recurrence rate was 10%. A consistent correlation between the age of the patient and the radiographic or histologic type of mandibular ameloblastoma was observed. There was a tendency for ameloblastomas of the follicular type to show a multilocular or mixed appearance and for those of the plexiform type to show a unilocular appearance.

Trimethylamine 및 Ranitidine의 N-산화대사능을 이용하여 측정한 FMO 활성도와 FMO3 유전자형의 상관성

이경훈,성송기,차영남,신상구 大韓臨床藥理學會 2000 臨床藥理學會誌 Vol.8 No.1

사회서비스형 복지국가전략의 지속가능성

안상훈 서울大學校經濟硏究所 2011 經濟論集 Vol.50 No.3

이 연구는 한국 복지정치 활성화를 통해 현재 진행 중인 복지논쟁을 보다 지속가능한 전략으로 전환시키고자 하는 목적에서 출발한다. 복지국가에 관한 찬반론을 넘어서서 어떤 복지국가전략이 지속가능성이 높은가 하는 방향으로 논의를 돌리고자 하는 것이다. 본론에서는 우선 사회서비스를 보다 강화하는 한국형 생활보장의 논리를 이론적 차원에서 논의한다. 현 시점의 선진자본주의가 당면한 일자리 없는 성장의 국면에서 현금에 비해 사회서비스가 강조되어야 하는 이론적인 이유들이 소개된다. 이러한 이론적 논의에 대한 경험적 측면에서의 분석결과는 크게 두 부분으로 나눠서 제시된다. 우선, 복지자본주의의 세 가지 유형에 관한 경제적·사회적 성과비교를 통해 사회서비스를 강화하는 북유럽형의 전반적 성과가 높다는 점을 보이고 있다. 다음으로는 복지국가의 크기와 구성을 동시에 고려하여 총사회지출, 현금이전지출과 사회서비스지출이 경제적 사회적 성과들이 어떤 관계를 보이는지에 관한 분석을 실시하였다. 그 결과, 사회서비스가 성장침해 효과가 적고 실업을 낮추며 고용, 특히 여성고용을 촉진하는 효과가 분명함을 확인하였다. 요컨대, 사회서비스를 강화하는 전략의 유효성을 확인할 수 있었고 현존하는 복지국가 전략 중에서는 북유럽형이 가장 우수한 성과를 보인다는 점을 알 수 있었다. 그럼에도 불구하고, 통일이나 고령화 속도 등의 상황차이로 인해서 예컨대 '스웨덴 모델' 그 자체를 우리에게 적용하는 것이 불가하며, 성공적인 전략의 원칙과 요소를 수용하여 '한국형' 고유전략을 마련하는 것이 시급하다고 결론을 내리고 있다. This study starts with a reserch object of which intension is to transform current welfare debate of Korea towards a more sustainable direction. As current debate of back-and-white is not useful in the time of welfare political activation, we need to concentrate on the issues like what kind of welfare strategy is more sustainable and economy-friendly. In the part of theoretical discussion, we propose a 'Korean Livelihood Security Model' in which programs of social services are emphasized. As is well known, when the current problem of capitalist market is labor demand shortage, it is argued that we can create more jobs by providing more social services. Empirical findings from two types of analysis commonly support this hypothesis. According to the comparison of three different strategies, the strategy of Nordic countries where social services have developed in addition to cach transfers shows higher performance in economic as well as social indicators. This result is doulble-checked in the correlation analysis where we compared how cash and service are related to the major economic and social indicators. In conclusion, this study suggests that we should not simply copy the Nordic strategy but accept important items of its success. This is due to unique situations Korea facs such as reunification, comparatively too fast ageing phenomenon, etc. All in all, this study ends up with some evidences by which we can confirm our proposal of 'Korean' version of welfare strategy in which social services are more spotlighted.

상부요추부수핵탈출증에 관하여

성경훈,김상진,박순필,도종웅 최신의학사 1988 最新醫學 Vol.31 No.2

Adamkiewicz 동맥의 폐색에 의한 척수경색 1례

이광훈,이종걸,이태연,신동익,이성현,이상수,한설희,차상훈 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

다발성 신경 섬유종증 제 1형에서 발생한 뇌출혈 1예

정상욱,배희준,이승훈,윤병우 대한신경과학회 1998 대한신경과학회지 Vol.16 No.5

생물학적 자극 통제 수단으로 활용하기 위한 돼지 페로몬성 냄새 물질의 탐색 I : Ⅲ. 2-(Cyclohexyloxy) Tetrahydrofurane 유도체와 Porcine Odorant Binding Protein 사이의 결합 친화력에 관한 비교 분자장 분석

성낙도,박창식,정훈성,성민규 충남대학교 형질전환복제돼지연구센터 2007 논문집 Vol. No.10

생물학적 자극통제 수단으로 활용하기 위한 돼지 웅성 페르몬성 분자를 탐색하고자 일련의 냄새 분자로서 2-(cyclo-hexyloxy) tetrahydrofurane 유도체들의 정량적인 구조와 수용체인 porcine odorant binding protein (pOBP)간의 결합 친화력 상수(p(Od)_(50))에 대한 비교 분자장 분석(CoMFA)을 실행하였다. 가장 양호한 CoMFA 모델 ATV (r²_(cv.)(q²)=O.886 및 r²(ncv.)=0.984)은 기질 분자 내 입체 중심(chiral center)의 절대 배열이 C₁(R),C₂(S)인 분자를 atom based fit 방법으로 배열하였을 경우의 standard field와 indicator field가 조합된 CoMFA장의 조건에서 유도되었다. 이 CoMFA 모델은 입체장 40.8%,정전기장 14.6% 및 소수성장 44.6%가 결합 친화력 상수에 영향을 미치는 요소임을 나타내었다. 등고도의 분석 결과로부터 효과적인 결합 친화력 냄새 분자를 수식하는 데 몇 가지 가치 있는 정보를 얻을 수 있었다. To search of new porcine pheromonal odorants for biostirnulation control system technologies to improve reproductive efficiency in livestock species, the comparative molecular field analysis (CoMFA) for binding affinity constant (p(Od)_(50)) between porcine odorant binding protein (pOBP) and ligands of odorant 2-(cyclohexyloxy) tetrahydrofurane derivatives as substrate molecule was conducted and discussed. In the optimized CoMFA model AIV with chirality (C₁'(R), C₂(S)) in substrate molecule and atom based fit alignment (A) of odorants, the statistical results showed the best predictability of the binding affinities (p(Od)_(50)) based on the LOO cross-validated value r²_(cv.) (q²=O.886) and non-cross-validated conventional coefficient (r²_(ncv.)=O.984). The binding affinity constants exhibited a good correlation with steric (40.8%), electrostatic (14.6%) and hydrophobic (44.6%) factors of the substrate molecules. From the analytical results of the contour maps, which may give us some valuable informations to the modification of odorants for effective binding affinity.

콩에서 발생하는 강낭콩일반모자이크바이러스(BCMV)와 땅콩위축바이러스(PSV)의 저항성 평가

이영훈, 윤영남, 강범규, 김현영, 최만수, 구성철, 김현태, 윤홍태, 이수헌, 백인열 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2

It has been reported several viral diseases in soybean. The occurrence of Bean common mosaic virus and Peanut stunt virus are able to induce severe problem because the main breeding target for viral disease was focused on Soybean mosaic virus. BCMV is a spcies of the genus Potyvirus of the family Potyviridae. BCMV reduces yield by as much as 80% and also adversely affects seed quality in common bean. BCMV has a worldwide distribution because of its high rates 35% of transmission via seeds produced by plants systemically infected prior to bloom. PSV is a species of the genus Cucumovirus of the family Bromoviridae. PSV has been reported to be economically damaging on beans worldwide. Although the virus is reportedly seed transmissible at very low rates, infected plants rarely produce pods with normal viable seeds. The most satisfactory management method of viral diseases such as BCMV and PSV is the use of resistant cultivars and healthy seed. For the overcome of genetic resistance by new virus such as BCMV and PSV, virus diseases monitoring and researches need to study deeply and continually. In this study, we conducted the resistance screen on BCMV and PSV for selection of resistance cultivars. We inoculated on 128 cultivars with PSV and BCMV respectively. These cultivars were classified through pathogenic response such as resistance, necrosis and susceptibility. In addition, 99 and 66 resistant cultivars were confirmed against PSV and BCMV respectively.