李東垣의 生涯와 醫學思想

崔三燮,洪元植 慶熙大學校韓醫科大學韓醫學硏究所 1981 慶熙韓醫大論文集 Vol.4 No.-

환율, 금리, 주가사이의 동적연관성 연구

홍정효(Chung-Hyo Hong),조혜원(Hae-Won Cho) 전북대학교 산업경제연구소 2010 아태경상저널 Vol.2 No.1

본 연구는 2000년 1월부터 2008년 말까지 콜금리, 3년물 국채금리, 원달러 외환시장 및 KOSPI자료를 이용하여 원달러 환율 및 장단기 금리 변화량, KOSPI수익률사이의 동적연관성을 실증적으로 분석하였다. 실증분석결과 첫째, 콜금리와 원달러 외환시장사이에는 장기적인 균형관계가 존재하고 있으나, 콜금리와 KOSPI, 원달러와 KOSPI사이에는 장기적인 균형관계가 존재하지 않는 것으로 나타났다. 3년물 국채금리는 콜금리와 공적분관계가 있으나 원달러, KOSPI와는 공적분관계가 존재하지 않는 것으로 나타났다. 둘째, 3년물 국채금리는 KOSPI 및 원달러 환율간에는 피드백적인 관계가 존재하고 있으나, 3년물 국채금리의 KOSPI 및 원달러에 대한 영향력이 그 반대의 경우보다 상대적으로 더 강한 것으로 나타났다. 세째, KOSPI와 원달러 환율사이에도 피드백적인 영향력이 존재하고 있으나 KOSPI의 원달러 환율변화에 대한 영향력이 그 반대의 경우 보다 더 강한 것으로 나타났다. 다섯째, 콜금리는 원달러 외환시장에만 영향력을 미치고 있으며, 장단기 금리사이에는 3년물 국채금리가 콜금리에 대한 영향력을 미치고 있으나 그 반대의 경우는 존재하지 않는 것으로 나타났다. 여섯째, 전반적으로 4가지 금융시계열모두 호재보다는 악재에 더 민감하게 반응하는 정보의 비대칭적인 특성이 존재하는 것으로 나타났다. 이러한 실증분석결과는 투자자들의 투자 및 위험관리전략 수립 뿐 아니라 정책당국자들의 통화 및 금융정책수립에 다소 나마 기여를 할 수 있을 것으로 보여 진다. We try to examine on the short term lead-lag relationship between call, KOSPI and won dollar spot markets with a vector error correction model, Granger causality test and impulse response analysis. This paper uses daily return data covering from January 2000 to December 2008. The major results are as follows; First, according to empirical test based on the Granger causality, the returns of won/dollar spot market Granger causes call market but vice versa. Second, we find a bilateral influence between won/dollar and KOSPI spot markets but the impact of KOSPI is relatively more dominant than of that of won/dollar market. Third, we also find that there is no influence between call and KOSPI markets in a statistically significant level. We hope these kinds of empirical results might be helpful for the investors to set up a asset portfolio and risk management system.

편측성 하악과두증식증에서 수술방법에 의한 술후 골격구조의 대칭성에 관한 비교연구

홍광진,이원학,조윤주,이정구,민병진 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.2

In patients with unilateral condylar hyperplasia, increased length of the condylar neck causes deviation of the mandible to the opposite site, resulting in facial asymmetry, but the arch form and general contour of the displaced mandible is approximately symmetric. So, the unilateral condylectomy have been prefered surgical method among the surgeons. The purpose of this study is to analyze the postoperative results comparatively following two different surgical methods, condylectomy and ramus surgery, in unilateral condylar hyperplasia. Case of 6 patients with the unilateral condylar hyerplasia were analyzed in this study, 3 case of the condylectomy only, 3 cases of the ramus surgery, Clinical and radiographic evaluations were tried for comparison. In conclusion, comparative results between two groups did not show any significant difference,but we confirmed that unilateral condylectomy could be a excellent surgical methods in unilateral condylar hyperplasia thinking over the unique morphological characteristics of it.

리비아 대수로공사 지역의 지반특성

홍원표,남정만,김시현,이재호 중앙대학교 기술과학연구소 1996 기술과학연구소 논문집 Vol.26 No.-

리비아 사막지역의 지반특성을 연구하기 위하여 리비아 1단계 대수로공사가 실시된 지역의 지반특성을 검토하였다. 본 연구에서는 Sarir 취수원에서 Ajdabiya 저수조를 경유하여 Sirt 저수조까지의 대수로 공사지역을 따라 실시된 실내시험과 현장시험결과를 포함하고 있다. 이 지역은 내륙지역(Sarir 취수원에서 Ajdabiya 저수조까지)과 해안지역(Ajdabiya 저수조에서 Sirt 저수조까지)으로 구분하여 연구된다. 본 연구결과, 지표면 부근에 있는 모암(Cap rock)은 주로 Caliche나 석회사암(Calcarenite) 성분을 많이 띠고 있고, 이들의 깊이에 따른 강도변화는 발견할 수 없었다. 또한 모래에 대한 Ncl도 깊이에 대한 변화를 발견할 수 없었으나 이들을 종류별로 분류하였을 경우, N치가 약간 증가하는 추세를 보였다. 끝으로 해안지역의 점토에서는 지표면부근에서 조금 과압밀된 경향을 볼 수 있었으며, 내륙지역의 점토에서는 대단히 높은 팽윤포텐셜이 관찰되었다. To study geotechnical properties on Sahara desert of Libya, geotechnical characteristics in the region of the Great Man-made River Project were reviewed. A series of field and laboratory tests were carried out along the route of the conveyance lines from Sarir well field to Sirt end reservoir through Ajdabiya holding reservoir. In the view of geotechnical aspect, the research subject area can be divided into two areas ; one is the inland area(from Ajdabiya holding reservoir to Sirt reservoir). The results of this study showed that the cap rocks nearby ground surface were generally composed of caliche or calcarenite and variation of its strength according to depth could not find. Also, N value in sand did not show a trend of variation with depth however, the N value in the classified soil reveals tendency to increased. The clay of ground surface in the coastal area was slightly overconsolidated due to the desiccation of the surface soils. The clay in the inland area had high swelling potential.

독일과 미국경찰제도 비교법적 연구

홍성찬,김원중 건국대학교 사회정책연구소 2000 사회과학연구 Vol.13 No.-

부력저항용 영구앵커의 거동

홍원표,송영식,고광태 중앙대학교 기술과학연구소 2002 기술과학연구소 논문집 Vol.32 No.-

본 연구에서는 부력저항용 영구앵커의 거동을 시공단계별로 구분하여 분석한다. 즉, 앵커의 두부에 하중계를 설치하여 앵커축력을 계측하였으며, 이 계측결과를 토대로, 앵커축력의 손실, 건물자중의 증가 및 외적조건 변화에 따른 앵커의 거동을 분석하였다. 영구앵커는 초기인장력에 비하여 Jacking Free시 인장력이 약 7% 정도 감소하며, 최종인장력은 약 15%정도 감소한다. 한편, 앵커의 초기인장력은 외력이 작용하지 않아도 PC 강선의 relaxation, 주입재 및 지반의 creep 등의 내적요인에 의하여 비선형적으로 감소되어 1차 수렴치에 도달하게 된다. 1차 흙되메우기 작업 기간동안 앵커축력은 흙되메우기에 따른 횡방향 토압이 증가 및 상부구조물의 자중증가로 인하여 감소된다. 그러나, 흙되메우기 작업이 중단된 기간동안 되메우기한 흙의 이완현상으로 횡방향 토압이 감소되며 이로 인하여 앵커축력이 증가하게 된다. 그리고, 되메우기한 흙속으로 지하수가 유입되어 부력이 증가하게 되므로 앵커축력은 증가하게 된다. 이때 앵커축력은 1차 수렴치까지 회복하게 된다. The behavior of permanent anchors for buoyant resistance is investigated at each construction stage. The prestressed anchor forces were measured by load cells which were attached to anchor head. On the basis of instrumentation, the loss of anchor force and the behavior of anchor by increment of structure weight and change of external condition were investigated. Prestressed anchor force at jacking free is decreased by about 7% than initial prestressed anchor force and decreased by about 15% finally. Although external forces does not act on the substructure, initial anchor force is decreased nonlinearly due to relaxation of PC strand and creep of grouting materials and soils. Also, anchor force was converged at the first convergent value. When first backfill was performed, anchor force was decreased due to increment of lateral earth pressure and superstructure weight. But, anchor force grew gradually during the period of breaking backfill by lowering of lateral earth pressure due to relaxation of soils. When groundwater inflowed into backfill soils, anchor force is slowly increased by uplift force below mat foundation. At that time, anchor force is recovered by the first convergent value.

치과 임프란트 치료 계획을 위한 나선형 일반 단층촬영과 전산화 단층촬영시 흡수선량 및 유효선량 평가

홍병희,한원정,김은경 대한구강악안면방사선학회 2001 Imaging Science in Dentistry Vol.31 No.3

Objectives : To evaluate the absorbed and effective doses of spiral and computed tomography for the dental implant planning. Materials and Methods : For radiographic projection, TLD chips were placed in 22 sites of humanoid phantom to record the exposure to skin and the mean absorbed dose to bone marrow, thyroid, pituitary, parotid and submandibular glands and nesophagus. Effective dose was calculated, using the method suggested by Frederiksen et al.. Patient situations of a single tooth gap in upper and lower midline region, edentulous maxilla and mandible were simulated for spiral tomography.35 axial slices(maxilla) and 40 axial slices (mandible) with low and standard dose setting were used for computed tomography. All the radiographic procedures were repeated three times. Results : The mean effective dose in case of maxilla was 0.865 mSv,0.452 mSv,0.136 mSv and 0.025 mSv, in spiral tomography of complete edentulous maxilla, computed tomography with standard mAs , computed nomography with low mAs and spiral tomography of a single tooth gap (p〈0.05). That in case of mandible was 0.614 mSv, 0.448 mSv, 0.137 mSv and 0.036 mSv, in spiral tomography of complete edentulous mandible, computed tomography with standard mAs, computed tomography with low mAs and spiral tomography of a single tooth gap (p〈0.05). Conclusions : Based on these results, it can be concluded that low mAs computed tomography is recommended instead of spiral tomography for the complete edentulous maxilla and mandible dental implant treatment planning. (Korean J Oral Maxillofac Radiol 2001; 31 : 165-73)

대구지하철 화재시 피난자 행동유형 분석을 통한 지하공간 안전피난대책에 관한 연구

홍원화,전규엽 대한건축학회 2005 대한건축학회논문집 Vol.21 No.1

In Korea, the Seoul subway line 1 was opened In 1974 and the subway service is being operated In Seoul, Pusan, Daegu, and Inchon The subway station is related to a underground shopping mall that was developed as complex spaces According to the time of people's stay at the underground space, the necessity about the safety countermeasure of the underground space has been enlarged Consequently, the efforts to minimize the damage of human life and property from similar underground fire occurrence or disaster is important In this research, we analyzed the survivors behavior's pattern and the way of evacuation from the Daegu subway fire disaster on Feb 18 2003, In which 192 people were killed and 148 injured We investigated about survivors of the Daegu subway fire and analyzed the factors of human behavior and evacuation in the underground space fire As a result of research, greater part of the interruption to escape is the loss of the direction to escape We need to install with suitable guidance devices according to the fact we have The device should be equipped with not only visual indication but also with tangible and audible

대구지하철화재 현장 수습체계 분석을 통한 신도시 재난대응체제 구축에 관한 연구

홍원화,김태현,전규엽 대한건축학회 2004 대한건축학회논문집 Vol.20 No.10

The disaster was breaking out at JungAnglo station in Daegu It might be ended as a typical fire happening but proceeded to the disaster because of the inappropriate system of disaster prevention we had taken, the lack of understanding and specialization about Even though many cities have been studied about disaster prevention The synthesis operation and management of disaster prevention we used before have not been prevention system Thus investigating and analyzing document about international and domestic urban fire and disaster system keep us, being in force and studying at present We try to get the point and search the system of advanced nation Up to now, the conditions of damage from disasters and accidents in Korea are getting disaster system We compare to system of disaster Japan, American and Korean This is the introduce abstract of fire disaster at Daegu subway and Sampoong department store This study of analyze of the Timetable and system for settlement resulted from disasters too And we setup new disaster confrontation system

書畵協會 硏究(1918-1936)

洪源基 대구교육대학교 1996 論文集 Vol.31 No.-