건설사업관리 정보시스템(PMIS)구축에 관한 연구

윤재호,문영일,Yoon Jae-Ho,Moon Young-Il 한국건설관리학회 2002 건설관리 : 한국건설관리학회 학회지 Vol.3 No.4

최근 건설시장의 선진화를 목적으로, 주어진 공기 내 완공 및 비용절감, 품질향상 등을 위하여 PMIS(사업관리정보시스템)의 활용이 심도 있게 요구되고 있다. 하지만, 현재 각 프로젝트에서 개발된 PMIS는 개발기간의 한시성으로 대개 공사현황위주로 되어 있고, 프로젝트 수행자들의 PMIS사용 역시 형식적으로 운용됨으로써, 발주자, 사업관리자, 시공자간의 효율적인 의사소통에 한계가 있는 실정이다. 이에 현재까지 개발된 사업관리정보시스템을 검토하고, 그동안 현업에서 개발한 경험을 토대로 효율적 인 PMIS의 구축방향을 제시코자 한다. Recently, utilization of PMIS(Project Management Information System) is in high demand as it is desired to advance the construction market through cost reduction and quality improvement within the given schedule. However, PMIS developed by individual projects are mostly evolving around construction progress status due to the temporary nature of development period and use of the system by project executers is no more than perfunctory that results in limiting the effective communication between the project owner, project manager and constructor. Therefore, the purpose of this paper is to review the PMIS developed so far, and present the direction for an effective PMIS.

십전대보탕(十全大補湯)이 암전이(癌轉移) 억제(抑制)에 미치는 영향(影響)

윤재호,최승훈,안규석,Yoon, Jae-Ho,Choi, Seung-Hoon,Ahn, Kyoo-Seok 대한암한의학회 1998 大韓癌韓醫學會誌 Vol.4 No.1

To examine the effect of Shiquandabutang on the metastasis of cancer, the following experiments were made. Before the main experiments, the cytotoxicity was measured by putting Shiquandabutang sample in HT1080. Then zymography was made to examine the change of gelatinolytic activity. And western blotting was carried out to examine the changes of Fos, Jun, Ets, the transcription factors of MMP-2, MMP-9, and Erk, JNK on signal transduction pathway to AP-1. Third, in vitro invasion assay with transwells coated by collagen and matrigel was carried out. From the results of the above the following conclusions were obtained. 1. The experimental result about cytotoxicity of Shiquandabutang against HT1080 was as below. The stained cell count after being treated by Shiquandabutang sample $400{\mu}g/ml$ for 24 hours was 0.9% of total cells, and the stained cell count by Shiquandabutang sample $100{\mu}g/ml$ was 1.5% of total cells. Both were near the level of control group which showed 0.6% stained. 2. The result of collagenase assay was as below. In Shiquandabutang sample $400{\mu}g/ml$, MMP-2 was reduced as compared with TPA control group, and the band of MMP-9 induced by TPA disappeared. In Shiquandabutang sample $800{\mu}g/ml$, both bands of MMP-2 and MMP-9 disappeared. 3. The results of western blots for Jun, Fos, Ets, Erk, JNK were as below. In Shiquandabutang sample $200{\mu}g/ml$, Ets was reduced, and Fos were increased. 4. The result of invasion assay was as below. The number of cells which migrated across transwell membrane in Shiquandabutang-treated group was less than that of +TPA control group. From the above results, it was concluded that Shiquandabutang might control the appearing and acting of collagenase not by the MMP-2, -9 promoter but by other way.

흑연 고속가공용 DLC 코팅 공구의 마모 특성

윤재호(J.H. Yoon),김형균(H.G Kim),최성대(S.D. Choi) 한국생산제조학회 2015 한국생산제조시스템학회 학술발표대회 논문집 Vol.2015 No.10

유무선 PKI 상호연동 평가방법론

윤재호(Jae-ho Yoon),이용(Young Lee),이재일(Jae-il Lee) 한국통신학회 2003 한국통신학회 학술대회 및 강연회 Vol.2003 No.4

고속가공용 DLC 코팅 공구의 흑연가공특성

윤재호(J.H. Yoon),김형균(H.G. Kim),최성대(S.D. Choi) 한국생산제조학회 2015 한국생산제조시스템학회 학술발표대회 논문집 Vol.2015 No.10

우리나라 조선산업의 지역산업연관 효과분석

윤재호 ( Yoon Jae-ho ) 경남대학교 산업경영연구소 2021 지역산업연구 Vol.44 No.1

본 연구는 한국은행이 2020년도에 발표한 ‘2015년도 지역산업연관표’를 사용하여 우리나라의 17개 지방자치단체에 속한 조선산업의 지역별 기본 경영현황을 분석하였다. 그리고 각 지역의 조선산업에서 발생한 투자 및 수출 활동이 전국 17개 지방자치단체의 165개 소분류 산업 부문에 미친 생산, 수입, 부가가치, 고용 파급효과를 분석하였다. 우리나라의 조선산업 생산활동은 경남, 울산, 전남, 부산, 전북 지역의 선박 수출기업을 중심으로 활발히 발생했다. 그 결과 조선산업의 투자 및 수출 활동에 따른 산업연관 파급효과는 우선 이들 지역 내에서 가장 크게 나타났다. 동시에 그 효과는 지역 간 산업연관 관계를 통하여 전국 각 지자체에 차별적으로 파급되었다. 지역 간 파급효과는 서비스 산업의 비중이 큰 서울과, 기계, 전기, 금속 산업이 발달한 경기도에서 더욱 크게 나타났다. 투자와 수출의 산업 간 파급효과는 33개 대분류 기준으로 볼 때, 조선산업이 속한 운송장비 산업은 물론, 그 밖에 금속, 임가공, 기계, 장비, 사업지원서비스, 도소매 산업을 중심으로 전국 전산업에 파급되었다. 우리나라의 조선산업은 국가 경제 특히 수출에서 차지하는 비중이 매우 높다. 본 연구의 결과는 글로벌 경기순환 및 국제무역 환경의 변화에 따른 국내 각 지역의 조선산업 및 그 연관산업 그리고 지역 고용 및 지역기업 지원정책 등에 유익한 자료로 사용될 수 있을 것이다. In this study the inter-regional and inter-industrial inducement effects of the Korean ship building industry in the 16 korean local governments on the production, value-added, imports, employments of the 166 industrial sectors in the 17 local goverments of Korea have been estimated by the regional input-output analysis method with the ‘2015 Regional Input-Output Statistics, which was announced recently in 2020 by the Bank of Korea. Since major korean ship building companies are located in Gyongnam, Ulsan, Jeonnam, Busan, Jeonbuk regions, about 99% of the Korean ship buildng, investments, exports occurred in these regions in 2015. It is found that the inter-regional inducement effects of ship building in the 16 regions scattered among 17 local governments. Especially Seoul and Gyonggi regions are found to be much favored in value-added and employment inducement effects. It is also found that the inter-industrial inducement effects of ship building in 16 regions occurred mainly in transportation equipments, metal products, foundry manufacturing products, machines and equippments, business assistance service, and whole-sale service industries.

수입원유가격의 상승이 국내 물류산업의 비용구조에 미치는 영향분석

윤재호(Yoon, Jae Ho),박명섭(Pak, Myong Sup) 한국무역상무학회 2009 貿易商務硏究 Vol.41 No.-

This study has been conducted under the background of the high rocketed international oil price in the mid of the 2008 year. Korean logistics industry then suffered from a harsh labor strike which paralyzed temporarily Korean exports and imports activities mainly due to the rising motor fuel prices. The theme of this study started from the highly practical question: what would be the impact of the soaring crude oil price on the cost structure of the Korean logistics industry? For this practical question this study conducted an input-output analysis utilizing the 2003 year benchmark input-output table, published by the Bank of Korea in 2007.

서울시 도시가구 거주자의 교통수요함수 분석

윤재호(Jae Ho Yoon) 한국경제학회 2002 經濟學硏究 Vol.50 No.2

In this paper, a complete system of travel demand equations using almost ideal demand system has been estimated with the urban household expenditure data of Seoul, Korea. Demands for the city bus mode, intercity bus mode, taxi mode, train mode, subway mode, gasoline(a proxy variable for passenger car mode), and other goods and services are estimated by the Zellner`s iterative seemingly unrelated regression method. The demand model is used to compute the elasticities of demand for each travel mode with respect to its own price, prices of other modes, and income(or expenditure). The results show: ⒜ the compensated price elasticities of demand for city bus, taxi, subway, and passenger car(gasoline) modes are inelastic in ascending order with the value of -0.67, -0.68, -0.69, and -0.75, respectively; ⒝ the price elasticities of demand for intercity bus and train modes are elastic with the value of -1.68 and -1.28 respectively; ⒞ the cross price elasticities of demand for travel modes are somewhat mixed with and without reasons; ⒟ the income elasticity of demand for gasoline is elastic with the value of 1.54; ⒠ the income elasticities of demand for intercity bus, taxi, subway, city bus, and train modes are inelastic in descending order with the value of 0.13, 0.19, 0.44, 0.48, and 0.56, respectively.

흑연소재 가공용 공구의 DLC 코팅두께가 가공특성에 미치는 영향

윤재호(J. H. Yoon),김형균(H. G. Kim),최성대(S. D. Choi) 한국기계가공학회 2015 한국기계가공학회 춘추계학술대회 논문집 Vol.2015 No.10

Marginal Propensity to Consume with Economic Shocks

윤재호(Yoon, Jae-Ho),이주형(Lee, Ju-Hyung) 한국산학기술학회 2014 한국산학기술학회논문지 Vol.15 No.11

본 논문에서 Hamilton의 마코프-스위칭 모형을 연립방정식으로 확장한 FIML 마코프-스위칭 모형을 제시해 보았다. 본 논문의 FIML 마코프-스위칭 모형을 LIML 마코프-스위칭 모형 등과 비교하면 LIML 마코프-스위칭 모형은 FIML 마코 프-스위칭 모형의 특별한 경우이며 FIML 마코프-스위칭 모형은 연립방정식으로 확장된 일반화된 모형 형태를 띄게 된다. 본 논문의 FIML 마코프-스위칭 모형을 Campbell and Mankiw 소비함수에 적용해 본 결과, 2008년 부동산 거품 붕괴와 같은 경제충격 시기의 한계소비성향은 매우 민감도가 높아진다는 것을 알 수 있다. Hamilton's Markov-switching model [5] was extended to the simultaneous equations model. A framework for an instrumental variable interpretation of full information maximum likelihood (FIML) by Hausman [4] can be used to deal with the problem of simultaneous equations based on the Hamilton filter [5]. A comparison of the proposed FIML Markov-switching model with the LIML Markov-switching models [1,2,3] revealed the LIML Markov-switching models to be a special case of the proposed FIML Markov-switching model, where all but the first equation were just identified. Moreover, the proposed Markov-switching model is a general form in simultaneous equations and covers a broad class of models that could not be handled previously. Excess sensitivity of marginal propensity to consume with big shocks, such as housing bubble bursts in 2008, can be determined by applying the proposed model to Campbell and Mankiw's consumption function [6], and allowing for the possibility of structural breaks in the sensitivity of consumption growth to income growth.