經濟法序說

朴光緖 中央大學校 法政大學 學生會 1965 法政論叢 Vol.11 No.1

HID LAMP 驅動을 위한 類似共振形 INVERTER에 관한 硏究

金光一,裵相俊 慶一大學校 1992 論文集 Vol.8 No.1

The cricuit of QRI(Quasi-Resonant Inverter) which is able to regulate frequency in the output voltage by the ZVS(Zero Volt Switching) was investigated. We found parameters in the circuit of QRI so that they have application to the HID(High Intensity Discharge) Lamp drive. Then we simulated that by personal computer and summarized the result of simulation.

Corynebacterium hofmannii에 依한 전신감염 1예

문대혁,최강원,박석건,이광호 대한감염학회 1984 감염 Vol.16 No.1

Corynebacterium of hoffmannii is a part of normal pharyngeal flora. Human infection caused by C. hofmannii is very rare. All reported cases involve prosthetic or native cardiac valve. This patient sufered from chronic alcohlism, diabetes mellitus, and acute suppurative inflammation of brain, meninges and soft tissue. And he failed to show any clinical response to various antimicrobial therapy and died after discharge.

초등교원양성대학의 교육서비스품질과 학생만족도 및 충성도의 구조적 관계

곽민석(Kwag Min Seok),곽현규(Kwag Hyun Gyu) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.18

본 연구는 초등교원양성대학의 교육서비스품질과 학생만족도 및 충성도의 구조적관계를 분석하는데 그 목적이 있다. 모집단으로는 현재 전국교육대학교에 재학 중인 학생들을 선정하였고, 이 중 서울과 강원도, 충청도에 소재한 A대학교, B대학교, C 대학교 학생들을 2017년 6월 5일부터 23일까지 약 3주간 표본 집단으로 설정하여 연구를 진행하였다. 연구의 수행을 위해 설문지를 측정도구로써 사용하였으며, 총 234명의 자료를 분석하여 가설을 검증하였다. 자료 처리에는 Windows용 PASW 18.0과 AMOS 20.0 프로그램을 이용하였으며, 빈도분석, 신뢰도 분석, 확인적 요인분석, 상관관계분석, 구조방정식 모형분석을 통해 자료를 분석하였다. 본 연구의 결과는 다음과 같다. 첫째, 교육서비스품질은 학생만족도에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 교육서비스품질은 학생충성도에 영향을 미치지 않는 것으로 나타났다. 셋째, 학생만족도는 학생충성도에 긍정적인 영향을 미치는 것으로 나타났다. 마지막으로 교육서비스품질과 학생충성도 사이에서 학생만족도는 매개하는 것으로 나타났다. The current study was aimed to investigate the structural relationships among educational service quality, satisfaction, and loyalty. Data were drawn from 234 students in three different universities. PASW 18.0 for windows and AMOS 20.0 program were used for data processing. Data were analyzed using frequency analysis, reliability analysis, confirmatory factor analysis, correlation analysis, and structural equation modeling techniques. The results were as follows. First, educational service quality had a positive effect on satisfaction. Second, educational service quality did not affect loyalty. Third, satisfaction had a positive effect on loyalty. Lastly, satisfaction fully mediated the relationship between educational service quality and loyalty.

Study of activation process and active site of co-based catalyst for 1, 3-butadiene polymerization using X-ray absorption spectroscopy and DFT calculations

Kwag, Gwanghoon,Bae, Chulbeom,Kim, Sunghyun Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of applied polymer science Vol.113 No.4

<P>Activation process and active site of Co-based Ziegler-Natta catalysts were studied by using synchrotron X-ray absorption spectroscopic technique and an optimum model of the cobalt active site was proposed with density functional theory (DFT) calculations. In the X-ray absorption near edge structure (XANES) spectrum of Co(2-ethylhexanoate)<SUB>2</SUB>, the preedge peak, 1s → 3d transition at 7707.8 eV and the K-edge peak, 1s → 4p transition at 7719.2 eV were observed. Both the intense K-edge and the weak preedge peaks indicate that Co(2-ethylhexanoate)<SUB>2</SUB> possesses high O<SUB>h</SUB> symmetry and the cobalt exists in a divalent state. Upon addition of methylaluminoxane (MAO), some changes in peak positions and intensities were observed. The preedge peak was a little shifted to 7708.2 eV with increased intensity, and the K-edge peak was shifted to a lower energy, 7717.2 eV with decreased intensity. This indicates that the oxidation state of cobalt still mainly remained +2 and the coordination geometry was altered from O<SUB>h</SUB> to T<SUB>d</SUB> resulting from Co 3d and 4p orbital mixing with a loss of O<SUB>h</SUB> symmetry. In the XANES spectrum of a mixture of Co(2-ethylhexanoate)<SUB>2</SUB>, MAO and t-BuCl, the K-edge peak at 7715.7 eV was observed. The orbital mixing of 4p cobalt and 2p chlorine orbitals results in a low energy transition. In 1,3-butadiene polymerization, this is attributable to the coordination of chlorine to cobalt, which is believed to facilitate cis-configuration and increasing reactivity. B(C<SUB>6</SUB>F<SUB>5</SUB>)<SUB>3</SUB> was employed as Lewis acid, but no significant interaction with cobalt was found in the XANES spectrum of a mixture of Co(2-ethylhexanoate)<SUB>2</SUB>, Al(iBu)<SUB>3<SUP>,</SUP></SUB> and B(C<SUB>6</SUB>F<SUB>5</SUB>)<SUB>3</SUB>, which is similar to the XANES of a mixture of Co(2-ethylhexanoate)<SUB>2</SUB> and Al(iBu)<SUB>3</SUB>. B(C<SUB>6</SUB>F<SUB>5</SUB>)<SUB>3</SUB> as Lewis acid does not greatly disturb the coordination symmetry of cobalt nor influence the oxidation state. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</P>

Study on the Advanced MAC Scheduling Algorithm for the Infrared Dedicated Short Range Communication

Kwag, S.,Park, J.,Lee, S. SPRINGER-VERLAG 2005 Lecture Notes in Computer Science Vol.3480 No.-

The Second Phase Precipitation on the Cell Boundaries of the Workhardenable Aluminum Alloys During Annealing Treatment

Kwag, Young Jik,Kim, Keun Mook 수원대학교 산업기술연구소 1987 산업기술연구소논문집 Vol.2 No.-

알루미늄 합금의 2 차상 석출과 냉간 압연시 형성된 금속 결정의 선결함 조직과의 상호 관계에 대해 연구했다. 금속의 과포화 정도와 선결함의 정도 및 선결함의 분포가 2 차상의 모양과 크기 및 분포를 결정하는데 가장 중요한 요소이다. 높은 과포화 상태의 합금은 무질서한 2차상의 분포를 보였고 낮은 과포화율을 보인 경우에는 선결함조직을 따라 일렬로 배열된 아주 미세한 2 차상을 석출시켰다. 이러한 경향은 과포화율이 낮을수록 그리고 열처리 온도가 낮을수록 현저하게 나타났다.

The Relation between Electrical Resistivity and the Microstructure in the Al-Mn Alloys

Kwag, Young Jik 수원대학교 기초과학연구소 1997 基礎科學論文集 Vol.6 No.-

합금의 미세구조를 결정짓는 중요한 세 가지 요소는 고용체 속에 들어 있는 고용체 원소의 밀도, 석출물의 크기와 량, 그리고 각종 격자 결함이다. 연구에 사용된 알루미늄 망간 합금 속에는 1.25%의 망간이 들어 있는데 이 망간은 열처리 온도와 시간에 따라 고용체 속에 녹아 있기도 하고, 석출물로 석출하기도 한다. 열처리 온도와 시간을 이용하면 석출하는 알루미늄망간(Al_6Mn)상의 크기와 밀도를 조절할 수 있다. 1.27㎝ 두께로 스트립 캐스팅된 상태로 입수한 시료는 적당한 크기로 잘라 세 가지 다른 온도에서 2시간 열처리 한 후에 전기전도도와 강도를 측정하고 전자현미경(TEM)으로 미세구조를 측정하였다. 이 시료들은 다시 냉간 압연하여 격자 결함을 증가시킨 후 서로 다른 온도에서 열처리하여 전기전도도와 미세구조를 조사하였다. 이 실험의 결과 금속의 비저항은 고용체 속에 들어 있는 망간 원소의 량에 의해 결정되고 석출입자의 크기나 량, 그리고 격자결함에는 큰 영향을 받지 않는 것으로 나타났다.

Phosphatase Activity in Cheonho Reservoir

Kwag, No-Tae,Son, Jae-Hak,Lee, Jeong-Sub,Ahn, Tae-Young The Microbiological Society of Korea 1995 The journal of microbiology Vol.33 No.4

Phosphatase activity was measured with other environmental factors in Cheonho reservoir in 1994. It ranged form 95 to 1,685 nM/1/h and was correlated significantly with chlorophyll-a. Such a close relation well matched the fact that over 90% of phosphatase activity was detected in > 3 $\mu\textrm{m}$ fraction. The phosphatase activity also correlated negatively with dissolved inorganic phosphate concentration, which implies derepression of phosphatase production by phosphate limitation. Significant correlation was analyzed between phosphatase activity and BOD, which also appeared to be closely correlated with chlorophyll-a. A great percentage of organic materials seems to be generated autochthonously by algae and extracellular enzyme even though allochthonous influence was thought to be stronger in Cheonho reservoir.

Imaging Mode Design and Performance Characteristics of the X-band Small SAR Satellite System

Kwag, Young-Kil The Korean Society of Remote Sensing 2000 大韓遠隔探査學會誌 Vol.16 No.2

A synthetic aperture radar (SAR) system is able to provide all-weather, day-and- night superior imaging capability of the earth surface, and thus is extremely useful in surveillance for both civil and military applications. In this paper, the X-band high resolution spaceborne SAR system design is demonstrated with the key design performance for a given mission and system requirements characterized by the small satellite system. The SAR multi-mode imaging technique is presented with a critical parameter assessment, and the standard mode results are analyzed in terms of the image quality performances. In line with the system requirement X-band SAR payload and ground reception/processing subsystems are designed and the major design results are presented with the key performance characteristics. This small satellite SAR system shows the wide range of imaging capability with high resolution, and proves to be an effective surveillance systems in the light weight, high performance and cost-effective points of view.