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5-8 GHz 대역 ASK 변조기 MMIC 설계 및 제작
장미숙,하영철,허혁,문태정,황성범,송정근,홍창희,Jang, Mi-Sook,Ha, Young-Chul,Hur, Hyuk,Moon, Tae-Jung,Hwang, Sung-Beam,Song, Chung-Kun,Hong, Chang-Hee 한국통신학회 2001 韓國通信學會論文誌 Vol.26 No.11
본 논문에서는 ITS 서비스를 위해 개발된 5.8 GHz대역 근거리 전용 무선 통신을 이용한 자동게이트통관시스템의 차량탑재장치(OBE) 구성요소 중 ASK 변조기를 설계 및 제작하였다. 제안된 ASK 변조기는 인접채널간섭을 줄이기 위하여 3 V 단일전압 드레인 제어 변조회로로 설계되었으며 0.7 - 3 V의 넓은 선형변조영역과 40 dB 이상의 On/off Ratio 특성을 얻었다. 회로의 Layout과 공정은 ETRI 0.5$\mu\textrm{m}$ MESFET Library를 사용하였고 칩 면적은 1.0mm $\times$ 1.0mmn로 제작하였다. In this paper, we have desired and implemented of ASK modulator MMIC operating at 5.8 GHz for OBE used in AGPS(Automatic Gate Passing System). The proposed ASK modulator MMIC was implemented to apply a single supply voltage of 3 V to the drain in order to decrease ACP(Adjacent Channel Power). As a result, it is exhibits a broad linear modulation range from 0.7 V to 3 V and an On/off characteristic over 40 dB. The layouts of ASK modulator MMICs was designed and fabricated by using ETRI 0.57m MESFET library The chip size was 1.0mm $\times$x1.0mm.
장미숙(MISUK JANG),김대규(DAEGYU KIM) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
This paper focused on the ship emission reduction, for SOx in particular. Developed system consists of emission reduction system(ERS) and emission monitoring system(ERS). ERS is composed of seawater scrubber(SWS) and exhaust gas recirculation(EGR).This system is designed with modularity to meet various user's requirements and meet the MARPOL(NOx technical code and SOx-EGCS guidelines) and IS0-8178.
자율적 학습공동체 프로그램이 대학생의 전문가 역량 및 학교태도에 미치는 영향
장미숙(Jang Misuk),박영신(Park Youngshin),안현아(Ahn Hyunah),김경이(Kim Kyungyee) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.15
본 연구는 다양한 주제와 분야의 학습활동을 목적으로 대학에서 자율적으로 구성된 학습공동체가 대학생들의 역량에 어떤 영향을 미칠 수 있는지 확인하기 위해 수행되었다. C대학교에서 2016년에 5월부터 12월까지 진행된 학습공동체 프로그램의 참여 학생 792명이 연구에 참여하였다. 참여 학생들에게 2차에 걸친 설문조사를 통해 대학생 핵심역량과 학업역량, 전문가 역량, 그리고 학교태도를 측정 자료로 수집하였다. 수집된 자료를 바탕으로 학생들의 프로그램 참여 전후의 점수 변화를 분석하였다. 분석 결과, 주제와 활동목적의 다양성에도 불구하고 학습공동체에 참여했던 학생들은 활동 초반보다 활동 종료 시점에 전문가 역량이 향상되었다. 또한 학생들의 학교에 대한 태도 역시 활동 초반 보다 활동 종료 시점에 긍정적인 방향으로 변화하였다. 학생들의 이러한 전문가 역량 향상 결과는 학생의 개인 역량 수준에 따라 상이하게 나타났다. 상대적으로 낮은 수준의 역량을 가진 것으로 평가된 학생들이 높은 역량을 가진 것으로 평가된 학생들 보다 전문가 역량이 크게 향상되는 것으로 나타났다. 이러한 결과는 대학생들의 학교에 대한 태도에서도 동일한 양상으로 관찰되었다. 본 연구의 결과는 수업 내 활동이나 단일한 목적을 위해 구성된 학습공동체가 아닌 다양한 목적을 위해 구성된 이질적인 학습공동체들도 공동체 활동만으로도 학생들이 공통적으로 전문가 역량을 향상시킬 수 있으며, 이런 학습공동체 프로그램은 학생 개인뿐만이 아니라 학교 조직에 대한 인식에도 긍정적 영향을 미칠 수 있다는 사실을 제안하였다. This study aimed to analyse and evaluate the effect of learning communities on college students’ professional competence. Total 792 students participated in survey research in 2016 learning community program at ‘C’ University. The methodology for analysis was to compare the change of professional competence between pretest and posttest. The findings are as follows. First, the scores of professional competence in posttest were significantly higher than in pretest. Second, the attitudes for college were progressed toward positive side at the end of program. Finally, the effects of learning community program differed in students’ gender, level of students’ competences. Female students showed the result of more improvement than male students through activity on learning community. And students in lower competency group had improved more than higher group students in professional competence. In addition, the patterns of attitudes for college results were identical. These results indicate that learning community in college have an beneficial influence on student’s competence as well as attitudes for college. Theoretical implications were discussed.
장미숙(Jang Mi-Sook) 부산경남사학회 2006 역사와 경계 Vol.60 No.-
In Edo Period, a bride got married to a bridegroom with chattel & real estate under name of her, dowry, and so on. This study concentrated upon how these properties has reverted to spouses while maintaining the marriage and in the process of divorce. Especially, it classified the Edo Period into the former and latter terms on the basis of the Ritsuryou Youryaku(律令要略) compiled in 1741 and the Kujikata Osadamegaki(公事方御定書) as a written law in 1742 and examined the change of the rights of wife-brought properties. First, the rights of chattel (household goods) with which a wife brought in marriage was considered as follows. There was a regulation in the Ritsuryou Youryaku(律令要略) which prohibited a husband from disposing of the chattel (household goods) under the name of wife at his discretion. If a husband infringed the regulation, a wife' father could divorce the couple. And a husband had a right to divorce as he wanted if he has surrendered the wife's chattel and dowry to her. And in the later Edo Period, a husband had to give the chattel back to his wife even if the wife was the cause of divorce and in the uncontrollable cases like a fire. Second, the right of wife's dowry was examined. In the ruling of leap month(閏)22 August, 1702 Genroku(元祿)15, the Hyozyousyo(評定所)judged that ‘a husband should restore a dowry to his wife if he claims divorce, and the surrender of dowry is decided by agreement between the spouses if the wife' side demands divorce', and it is provided in the Ritsuryou Youryaku(律令要略)that ‘a husband has to restore dowry if he claims divorce, a wife can not assert the surrender of dowry if her side demands divorce'. But if circumstances of the later Edo period through some divorce cases is analogized, it is felt that the right of wife's dowry is getting more rigid than the regulation in Ritsuryou Youryaku(律令要略) toward the latter term of it. Finally, the right of wife-brought real estate was investigated. From the ruling of the Hyozyousyo(評定所) in 1706, a wife' properties as well as a husband's were forfeited when he was punished, excepting only the properties under the name of wife. In the Ritsuryou Youryaku(律令要略), chattel under the name of wife, dowry, and wife-brought paddy & ordinary fields has reverted to the husband even if she died, except for the paddy & ordinary fields under the name of wife. But according to Article 27 of the Osadamegaki Hyakkazyou(御定書百箇條) like the ruling of the Hyozyousyo(評定所) in 1706, properties under the name of husband were seized when their properties were confiscated due to punishment on husband, with the exception of wife's chattel as well as the paddy & ordinary fields, house, and dowry under the name of wife.