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정경효(KH Chung),이낙우(NW Lee),김용민(YM Kim),이용석(YS Lee),이규완(KW Lee) 대한산부인과학회 1994 Obstetrics & Gynecology Science Vol.37 No.7
Adenocarcinoma of the endometrium is presently the most common gynecologic malignanty in the U.S.A. and Europe. Also, in Korea the incidence of endometrial carcinoma tends to increase grdually. Fortunately, because most of the patients who develope this desease are diagnosed in stage I, there is usually a good prognosis. But the prognosis of the serous papillary endometrial carcinoua(SPEC), subtype of endometrial carcinoma is very poor, it must be diagnosed in the early stage for proper treatment. The SPEC represent 1.1% to 10% of all adenocarcinoma of the endometrium and tends to develope at 60 or above years after menopause almostly. We experienced a case of the SPEC diagnosed after explolaparotomy in 62 years old women and we present this case with a brief review of the literatures.
정경효(Kyeong-Hyo Jung),신재익(Jae-Ik Shin) 한국창업학회 2021 한국창업학회지 Vol.16 No.6
본 연구는 코로나 19의 세계적 확산으로 글로벌 생산 활동의 위축과 실물 및 금융 흐름이 둔화되고 고용도 악화되고 있는 환경변화에서 이러한 어려움을 극복하고, 대기업과 중소기업이 생존과 성장을 추구할 수 있는 두 당사자의 상생협력을 위한 관계마케팅 전략을 제시하는데 초점을 두고 있다. 본 연구의 방법은 관련 선행연구들의 문헌분석과 분석적 검토를 실시하였다. 대ㆍ중소기업 상생협력 및 관계마케팅 관련 주요 선행연구들을 분석적 검토를 하고 시사점을 평가하였다. 대ㆍ중소기업 상생협력에 있어서 현황, 저해 요인, 정책 등을 살펴보면서 보다 나은 성과를 달성하기 위해 대기업과 중소기업이 자신들의 비즈니스를 유지하고 성공하는데 필요한 장기적 관계를 충족시키는 관계마케팅의 접근방법을 제안하였다. 관계품질인 만족, 신뢰, 몰입의 변수가 대기업과 중소기업의 상생협력 성공에 상당한 영향을 미칠 수 있는 중요한 변수이다. 따라서 대기업과 중소기업의 상생협력을 성공시키기 위해서는 높은 수준의 관계품질이 유지될 수 있도록 많은 노력과 투자가 필요할 것이다. 중소기업은 대기업이 자신들에게 의존하도록 관계품질을 강화해야 하며, 대기업도 중소기업이 성장할 수 있도록 상생협력의 경영철학을 실천해야 할 것이다. 본 연구의 미래 연구 방향은 대ㆍ중소기업 상생협력 모델의 산업별로 접근하며 4차 산업혁명의 영향을 고려하고, 그리고 본 연구의 결과를 토대로 실증분석으로 접근할 필요가 있을 것이다. This study overcomes these difficulties in the environment change in which global production activity is shrinking due to the global spread of COVID-19, real and financial flows are slowing down, and employment is also deteriorating. It focuses on presenting a relationship marketing strategy for win-win cooperation between large companies and SMEs that can pursue survival and growth. For the method of this study, the literature analysis and analytical review of related previous studies were conducted. Major prior studies related to win-win cooperation and relationship marketing were analyzed and implications were evaluated. In order to achieve better results by examining the current status, impeding factors, and policies in the win-win cooperation between large and small enterprises, a relationship marketing approach is proposed that satisfies the long-term relationship required for large enterprises and SMEs to maintain and succeed in their business. The constructs of relationship quality, such as satisfaction, trust, and commitment, are important variables that can significantly affect the success of win-win cooperation between large companies and SMEs. Therefore, in order to succeed in win-win cooperation between large companies and SMEs, a lot of effort and investment will be required to maintain a high level of relationship quality. SMEs should strengthen the relationship quality so that large companies depend on them, and large companies should practice the management philosophy of win-win cooperation so that SMEs can grow. For the future research direction of this study, it will be necessary to approach the win-win cooperation model of large and small enterprises by industry, consider the impact of the 4th industrial revolution, and take an empirical analysis based on the results of this study.
정경효(Keong Hyo Jung),정기한(Ki Han Chung) 한국창업학회 2012 한국창업학회지 Vol.7 No.2
The purpose of this study is to investigate the relationship among market orientation, company image, and business performance of small manufacturing enterprises in Korea. The results show that information dissemination and information responsiveness of market orientation affect positively company image except information generation. Information dissemination affects positively business performance except information generation and information responsiveness. However, information responsiveness affects indirectly business performance. Company image affects positively business performance. Therefore, it is identified that the role of market orientation is very important to enhance company image and business performance of small manufacturing enterprises. For this, managers should make efforts to build effective market orientation as organizational culture to improve company image and business performance.
정경효,원종식,정윤교 國立 昌原大學校 産業技術硏究所 1996 産技硏論文集 Vol.10 No.-
Inconel, super heat-resistant alloy is superior in the toughness and the creep strength. It can especially endure high temperature and corrosion. It has been, therefore, broadly used in the various fields of atomic industry, aerospace, industrial mechanics and automobile etc. But such inherent properties as high temperature strength, an affinity with tool materials and low heat-conductivity etc. of Inconel alloy 600 degrade machinability. As a result, they cause many problems in the cutting process. In this study, machinability of Inconel alloy 600 was estimated on stand points of cutting force, tool wear and welding of chip for the cutting edge. Inconel alloy 600 was cut by precision high-speed lathe and tool material was used coated tungsten carbide insert(CTCI) and ceramic insert(CI) to be done in general. Cutting force is measured by the piezo type tool dynamometer and cutting edge is observed by scanning electron microscope(SEM). As a experiment result, obtained conclusions as follows. (1) In the case of cutting Inconel alloy 600 with CTCI, value of cutting force is similar its of SM45C. In this case, however, we can not avoid the cutting trobles that is ; the large width of fluctuations for cutting force and welding of cutting chips for cutting edge because of the toughness of the material. (2) In the case of using CI, the brittleness of the tool resulted in chipping. (3) Available cutting conditions of Inconel alloy 600 for CTCI and CI were established.