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오성수,양승훈,박봉두 경북대학교 산업기술연구소 1987 産業技術硏究誌 Vol.15 No.-
We fabricated a-Si : H/a-SiN : H superlattices using the RF glow discharge system which was equipped with sliding mask and liquifing system of exhausting gases. Samples were deposited at substrate temperature of 250℃, deposition rate of 0.8 - 1.0 A˚/sec, deposition pressure of 200 mTorr (SiH_4) and 400 mTorr (SiH_4 + NH_3), and Rf power density of 150-200 mW/㎠. Employing a-Si: H layer thickness as a deposition parameter (fixing a-SiN : H layer at 30A˚), we found that the decrease of a-Si : H layer thickness (600→60A˚) was accompanied with the increase of activation energy (0.8→1.0eV). And in particular, persistent photoconductivity was clearly observed in the samples with 60A˚ a-Si :H.
오성수 한국경영과학회 1989 한국경영과학회 학술대회논문집 Vol.- No.1
#2 HOT RROLLING MILL, One of mill making final products of POSCO, Produces Hot, Coil from slab transported continuous casting mill. With brief explanation, It is made up of a series of facilities such as reheating furnace, a roughing mill line, a finishing mill line and down coiler line etc. Among these facilities, work roll, the most important equipment of the finishing mill line, controls thickness, width and quality of hot coil. And then, the spent time for work roll's replacement takes possession of 32% against The purpose of this study is to reduce the it's replacement time by the using of time and motion study so as to improve productivity of #2 HOT ROLLING MILL. After reviewing process for work roll replacement, the following methods are studied and analyzed. 1) Eliminate of unwanted job and rearrange of remaining job. 2) Set up standard time for every job of roll replacement. 3) Change of lay-out, if possible The result of this study is proved that the #2 HOT ROLLING MILL'S production is up about 40,000ton per year.
브랜드 오명(Brand Stigma)효과 : 통합적 인과관계형 측정 모델 개발 및 타당성 연구
오성수,나운봉 한국마케팅관리학회 2019 마케팅관리연구 Vol.24 No.4
Although we faced frequently irrevocably damaged corporate reputation, theoretical definitions and scale measures that captured this phenomenon were nonexistent. There have been inadequate studies on the corporate reputation measures, and insufficient studies on situational factors of stigmatizing brands in crisis. This study defined brand stigma as extreme decrease of brand evaluation resulted from damaged corporate reputation. We also developed integrated scales to measure the cause-and-effect of brand stigma. (Study 1). Through standardized measurement scale development and verification process, we discovered 4 cause factors and 2 effect factors. The causes were four- dimensional scale with the following: problems of product/service, corporate culture/behavior, CEO/owner, the business itself. The effects were two- dimensional scale with the following: attitudinal and behavioral effects. Through regression analysis of these cause and effect relationships, the study found very high predictability and verified the validity of the integrated cause-and-effect model. In Study 2, we verified the validity of the brand stigma measures and verified its relationship with consumer perception and behavior-related variables. It demonstrated a very negative correlation to such variables as purchase intention, loyalty, trust, CSR evaluation and reputation. Brand stigma influenced customer perception and behavior very negatively. Also, cause and effect analysis for each corporation demonstrated highly influential cause factors and helped to find the customized strategic solution for each corporation. With these results, this study suggests theoretical and practical implications. 기업 이미지의 극단적 추락과 회복 불능 사태가 빈번한데도 이에 대한 이론적 개념 규정 및 측정척도 개발이 전무했다. 대부분 긍정적 측면에 대한 기업평판 척도개발 연구가 주였으며 일부 위기브랜드낙인연구가 이루어졌으나 인과관계를 밝히는 연구는 전무했다. 이에 본 연구에서는 기업 이미지가 극단적으로 훼손되어 브랜드 평가가 추락하는 현상을 브랜드 오명(brand stigma)이라 규정하고 통합적 인과관계 측정척도를 개발하였다(Study 1). 표준적인 척도개발 절차를 거쳐 원인요인으로 4개요인, 결과요인으로 2개요인을 도출했다. 원인요인으로는 제품/서비스문제, 조직문화/행위문제, 최고경영자/오너문제, 사업자체문제 그리고 결과요인으로는 태도적 결과, 행동적 결과가 도출되었다. 회귀분석을 통해높은 예측력을 확인해 통합적 인과모델의 타당성을 검증하였다. Study 2에서는 브랜드 오명 척도의 타당성을 검증하고 소비자 변인과의 관계를 검증하였다. 구매의향, 충성도, 신뢰도, CSR평가, 평판 등 소비자 변인과의 관계는 매우 부정적인 상관관계를 보였다. 브랜드 오명이 소비자 인식 및 행동에 매우부정적인 영향을 미치는 관계를 발견하였다. 연구 결과에 근거한 이론적, 실무적 시사점도 제안하였다.