• 전기의세계
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• 제33권9호
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• pp.540-549
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• 1984

본고의 내용은 다음과 같다. 1. 최근의 DSP 1.1 NEC의 .mu.PD7720 1.2 TI의 TMS32010 1.3 HITACHI의 HD61810B 2. 검토

• 광산업정보
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• 통권5호
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• pp.46-49
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• 2001

• 전자진흥
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• 제24권9호
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• pp.54-57
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• 2004

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 1996년도 The 9th KACG Technical Annual Meeting and the 3rd Korea-Japan EMGS (Electronic Materials Growth Symposium)
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• pp.325-350
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• 1996

• 전자진흥
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• 제17권10호
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• pp.66-71
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• 1997

• 한국진공학회:학술대회논문집
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• 한국진공학회 2002년도 제22회 학술발표회 초록집
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• pp.47-47
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• 2002

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 추계종합학술대회
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• pp.304-308
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• 2003

본 논문에서는 24GHz에서 동작하는 2단 저잡음 증폭기를 설계 및 제작하였다. 소자는 NEC사의 NE450284C HT-FET를 사용하였고, 양호한 잡음지수를 위한 정합회로 설계 시 좋지 않은 입력 정재 파비를 동시에 고려하여, 원하는 잡음지수와 입력 정재파비를 얻도록 설계하였다. 측정 결과 이득은 16.6dB, 입력 정재파비는 1.6, 그리고 출력 정재파비는 1.5를 넘지 않는 특성을 얻었다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.732-735
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• 2002

By forming lens-like shapes on the electrode surfaces in OLEDs, the external quantum efficiency is enhanced. The external quantum efficiency of the proposed structure can be much more increased compared to that of the flat structure by decreasing the length of major axis and increasing the length of minor axis for the lens-like shapes.

• Journal of electromagnetic engineering and science
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• 제2권2호
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• pp.81-86
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• 2002

This paper presents the full wave analysis of microwave circuits with nonlinear device using the finite difference time domain method. The equivalent current source is used to model nonlinear device and all the electric field components at the nonlinear device are updated by FDTD algorithm. The currents and voltages of nonlinear device are calculated by the state equations and iteration method. To validate the proposed method, the S-parameters of NEC NE72089 MESFET in various conditions are analyzed and the results are compared with those of the ADS. The proposed method is applied to the analysis of a microwave amplifier, which includes NEC NE72089 MESFET. The analysis results obtained by the present method show good agreement with those of the ADS.

• 영어어문교육
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• 제8권1호
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• pp.241-259
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• 2002

The purpose of this paper is to analyze the recent trends of the development of the English textbooks in EFL situation. The 7th National English Curriculum(NEC) in 2001 which emphasized the curriculum-centered school education have had much influence on the traditional textbook-centered school education in Korea. According to the paradigmatic change of school education, the contents of the English textbooks were changed into the new types of students-centered classroom activities. For students' communicative activities, the English textbooks were developed by two types of syllabuses: process-oriented syllabus and product-oriented syllabus. The 7th NEC includes procedural syllabus and task-based syllabus as well as grammatical- structural syllabus and notional-functional syllabus. In short, unlike the English textbooks in former curriculums, learners' classroom activities and tasks have been emphasized in those to foster their communicative competence.