I_2 O_2법에 의한 연탄연소 가스중 CO의 정량분석

정기호,李源國 陸軍士官學校 1976 한국군사학논집 Vol.16 No.-

Analytical determination of carbon monxide cantent in the anthracite flue gas was carried out with the method of iodine pentoxide. This flue gas contains about 1 to 2 volume percents of CO, in general, 8 to 9% of CO_2 15% of O_2, 75% of N_2 and an trace(less than 0.04%) of H_2 on dry basis. Temperature(above 100℃) of the iodine pentoxide was not a sensitive factor of carbon monxide oxidation when working with anthracite flue gas.

“더 잘하려면 베끼지 말고 새로운 모델 만들어야

정기호 한국자치학회 2019 월간 주민자치 Vol.88 No.-

Session B2 : 정보통신 : 전자상거래를 위한 인터넷 가치측정에 관한 연구

정기호,손종호,오지환 한국정보시스템학회 1997 한국정보시스템학회 춘계 학술발표논문집 Vol.1997 No.-

TOPSIS 기반 대학 학과 홈페이지 운영관리 평가방안

정기호 중소기업융합학회 2019 융합정보논문지 Vol.9 No.9

This study presents a TOPSIS-based application for the evaluation of administrative purposes on the website of university's departments. As the school age population decreases, the homepage of the university's departments also has important promotional means. However, most of them are not well managed until a full renewal. This is because the investment is difficult compared to strategic importance. Therefore, this paper tries to show its usefulness by applying a partially modified TOPSIS for management purposes, in consideration of the practicality. TOPSIS is appropriate for target management as a conceptual reason to prioritize based on the distance from the ideal target for each criterion. Also, in the case of monotonic functions of the evaluation criteria used, the same results can be obtained by reducing the amount of calculations through a partially modified procedure as presented in this study. 본 연구는 관리적 목적에서 대학의 학과 홈페이지 평가를 위한 TOPSIS 기반의 응용을 제시한다. 학령인구 감소시대를 맞아 대학의 학과 홈페이지는 입시 전략의 관점에서는 중요한 홍보 수단의 의미를 갖는다. 하지만 대부분 리뉴얼과 같은 전면적 개편 전에는 관리가 잘되지 않는다. 비록 입시전략 차원에서 홈페이지 관리는 중요한 일이지만 단순한 관리 목적의 평가에 많은 노력이나 비용을 투자하기는 어렵기 때문이다. 그래서 본 논문은 현실성을 고려하여 관리 목적에서 대학의 학과 홈페이지 평가에 부분적으로 수정된 TOPSIS를 적용하여 그 유용성을 보이고자 한다. TOPSIS는 각 기준에 대한 이상적인 목푯값으로 부터 편차 거리를 기반으로 하여 우선순위를 결정해 주는 개념적 이유로 목표 관리를 위한 평가 도구로 사용하기에 합당하다고 본다. 그리고 사용되는 평가 기준들의 방향성이 같은 단조증가 함수 같은 경우 본 연구에서 제시된 바와 같이 부분적으로 수정된 절차를 통하여 계산량을 줄여도 동일한 결과를 얻을 수 있다.

Is Informed Trading Different Across Investor Types?

정기호,박혜진,김인준 한국증권학회 2020 Asia-Pacific Journal of Financial Studies Vol.49 No.6

This study compares the extent of informed trading across investor types in the Korean stock market using intraday quote and trade data. We estimate for each stock the probability of information-based trading (PIN) using trades that are initiated by foreign investors, domestic institutional investors, and local individual investors separately. The results show that the PIN values of foreign and domestic institutional investors are much higher than those of individual investors. Contrary to the belief of some market participants, however, we find that local institutional investors engage in more informed trading than foreign institutional investors.

IT 제안서의 기술평가에서의 퍼지 TOPSIS 응용

정기호,Jeong, Giho 디지털산업정보학회 2017 디지털산업정보학회논문지 Vol.13 No.1

In recent years, it is natural that the development and the maintenance of information systems are strongly dependent on outside service providers for economic reasons, especially in public sector. There has been an unexpected growth in the number of selection activities for outsourcing related works. At this time, selection of the contractor generally considers the proposals received based on the RFP(requested for proposal) and determines the ranking by experts committee. However, it is difficult even for expert giving a specific numeric score in weighting criteria or rating alternatives. In this context, an extended fuzzy TOPSIS method is applied for selection problem of IT proposals. A numerical illustration is also provided to demonstrate the applicability of the approach. This approach is very practical to help decision makers in assessing proposals during the selection phase under uncertainties.

佛國寺의 配置 및 細部形式의 檢討

鄭基浩 동국대학교 사찰조경연구소 1992 寺刹造景硏究 Vol.1 No.-

This study is an analytic research to propose new meterials interpretating the Temple Bulguksa. The method and objects are geometric analysis of the site plan and reconstruction of main structures in detail. The findings of this study, that the master plan of the Temple, as well as two pagodas, is based on a very simple principle as concentric circle and its inscribed polygon, must assit in understanding Temple Bulguksa.

이규보(李奎報)의 계양 시문 (桂陽詩文) <上>

정기호 새얼문화재단 1994 황해문화 Vol.2 No.-

키토산 스폰지의 창상치유 효과

정기호,박재우,정재영,정호윤,조병채,백봉수 대한성형외과학회 2003 Archives of Plastic Surgery Vol.30 No.2

Chitosan is a polysaccharide obtained by deacetylating chitin which is the major constituent of the exoskeleton of crustaceous water animals. Chitosan has many useful biological properties such as biocompatibility, biodegradability, hemostatic effect, antimicrobial activity and the ease of chemical modification.In order to evaluate the efficacy of chitosan as a wound dressing material, authors prepared chitosan as a sponge form and compared it with ointment dressing material, amniotic membrane and hydrocellular dressing material through the animal experiment. Four round(ø3cm) full thickness skin defect were made bilaterally on the dorsolateral aspect of the New Zealand white rabbit's trunk and four groups of dressing material-chitosan sponge, ointment dressing material, amniotic membrane and hydrocellular dressing material- were applied on the wound and evaluated grossly and histopathologically.We compared gross finding by means of percentage of wound contraction, percentage of wound epithilization and percentage of wound healed by tracing the remained wound area every week and wound biopsy were performed every other day.Chitosan sponge group and amniotic membrane group show statistically higher percentage of wound contraction and higher percentage of wound healed than the other groups(p<0.05). Hydrocellular dressing material group shows statistically lower percentage of wound epithelization than the others(p<0.05).During the inflammatory phase(postwounding day 1-5) chitosan sponge group and amniotic membrane group absorbed exudate effectively and demonstrate less inflammatory cell infiltration, which induce faster angiogenesis and fibroblast proliferation than the other groups. This study suggest chitosan has a potential as a new dressing material because of high absorbency of exudate, promotion of wound contraction and reduction of inflammatory reaction during the inflammatory phase of wound healing.

능산리 고분 출토 목관재 능산리 고분 철정부착 목편의 수종분석

정기호,박상진,강애경 한국목재공학회 2002 목재공학 Vol.30 No.4

A.D. 6C경의 백제시대 때 만든 것으로 추정되는 부여 능산리 고분에서 출토된 목관의 철정(鐵釘)을 시료로 하였다. 철정은 목질과 철산화물이 엉겨붙은 덩어리로서 전기화학적인 방법으로 철을 제거하고 목질부 만을 분리하여 광학 및 전자현미경으로 관찰하고 수종을 식별하였다. 28점의 시료 중 24점이 비자나무였고 나머지 4점이 소나무였다. 비자나무는 당시 부여 부근에는 생장하지 않았으므로 관재를 만들기 위하여 남부지방 혹은 다른 지역에서 운반해온 것으로 추정된다. A wooden coffin estimated to be made in Baikjae Dynasty in A.D. 6 century was excavated from ancient tombs in Nung-san ri, and examined to identify its wood species using light and electron microscopy. Wooden part attached to oxdized complex around the iron nails on the coffin was electro-chemically separated to prepare the samples for observation. The results revealed that 24 samples out of 28 samples investigated were identified as Torreya nucifera, while the rest 4 samples were identified as Pinus densiflora.