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李天熙 청주대학교 산업과학연구소 1988 産業科學硏究 Vol.6 No.-
EDAS_P system is a personal CAE system for electronic circuits design, which is developed at ETRI. In this paper, we present the improved graphics functions of the EDAS_P system using the GSS*CGI on EGA card. There are two main differences of the existing facilities. The first one is the change of resolution from 640*200 to 640*35O. The second is the change of color from black /white to the 16 colors.
이천희,김호준,곽경섭 한국ITS학회 2014 한국ITS학회논문지 Vol.13 No.1
본 연구에서는 X-밴드 taper 슬롯구조 능동위상 배열 안테나를 구현하였으며, 구현한 안테나의 성능을 해석하고 측정을 통하여 분석하였다. 제작된 광대역 위상배열 안테나의 능동반사계수 및 능동복사패턴을 측정한 결과를 통하여 설계된 위상배열 안테나의 능동반사계수 및 능동복사패턴 결과와 일치함을 확인하였고, 안테나의 광대역 빔 특성을 검증하여 설계 목표에 부합하는 안테나 구조를 제안하였다. X-Band taper slot-typed active phased array antenna is studied and designed. Through the simulated and measured performances, it is confirmed that both of active reflection coefficient and active radiation pattern of the designed phased array antenna are agreed well with those of the prototype manufactured one. From this study, the proposed antenna structure is matched to the design target of characteristics of antenna's broadband beam.
N個 端子의 抵抗素子들로 構成된 回路에 있어서 非增幅特性의 硏究
李天熙 淸州大學校 1979 論文集 Vol.12 No.2
The well-known characteristics that networks of linear, positives resistors cannot amplify currents or voltage which are supplied by energy sources is shown to apply also to a class of non-linear, multi-terminal, resistive devices. The results of previous work are established and further extended by a very simple analysis procedure. The results are relevant to the behaviour of integrated circuits.
임풍,조문제,변준희,강윤제,이종원,이천희 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.1
Glomus tumor is rare with incidences that consume about 1% of hand tumor. Originating from the various elements of glomus body, the most common site of ouucrence is the hand, the majority located in the subungus of a finger. It presented with a triad of pain, tenderness, and temperature intolerance, especially cold sensitiveity. Diagnosis is made mainly by physical examination. Complete excision under the magnification aid is the choice of treatment. Twenty patents (17 females and 3 males) underwent excision from 1988 to 1993 in this university hospital. We reviewed and analyzed their charts retrospectively and the following results were obtained from the clinical analysis : 1. It is more common in female and adult. 2. It locates most comonly in the subungus. 3. It mainfests pain, tenderness, and cold intolerance. 4. Diagnosis was made after suffereing from symptoms for a long period. 5. It is diagnosed mainly by physical examination. 6. It is cured by complete excision under aid of magnifying instrument. 7. The peculiar clinical type of the glomus tumor presents rarely.
신용평가에서 중소벤처기업 경영자 역량 요인의 상대적 중요도에 관한 연구
이천희,이동명,진로 한국디지털정책학회 2019 디지털융복합연구 Vol.17 No.4
This study is to provide a method to increase the credit rating of the company by examining and managing the executive competency of the CEO of SMEs and Venture Firms. We analyzed the importance and priority of AHP by surveying bank loan staff and CEOs. According to the analysis results, ethics management, strategic thinking, and expertise level were the highest in the relative importance of bank loan staff. The relative importance of CEOs was higher in order of marketing, bank transaction reliability, and financing. Result of this study is similar to the relative importance of the previous research. This study suggests to disclosing credit rating system and reflect the opinions of the CEO in order to protect financial consumers. The significance of this study is to present the factors and the importance that can help to develop advanced models. 본 연구는 경영자 역량에 관한 심층분석을 통하여 은행에서 경영자 역량을 보다 구체적이고 체계적으로 신용평가에 반영하고, 중소벤처기업 CEO는 경영자 역량을 스스로 점검하고 관리하여 기업의 신용등급을 높이는 방안을 제공하고자 한다. 은행의 대출담당자와 중소벤처기업 CEO를 대상으로 설문하여 중요도 및 우선순위를 AHP를 통해서 분석하였다. 분석결과를 보면 대출담당자의 상대적 중요도에서 윤리경영, 전략적 사고, 전문지식수준의 순으로 높게 나타났다. 중소벤처기업 CEO의 상대적 중요도에서는 마케팅, 은행거래신뢰도, 자금조달의 순으로 높게 나타났다. 본 신용평가에서도 선행연구의 상대적 중요도와 유사한 결과를 보였으며, 금융소비자 보호 차원에서 신용평가시스템을 공개하고 CEO의 의견을 반영하는 노력이 필요하다고 사료된다. 본 연구의 의의는 경영자 역량 요인의 상대적 중요도를 연구하여 향후 발전된 모형개발에 도움이 되는 요인과 중요도를 제시한 점에 있다.