有機化合物에 있어서의 酸化反應에 對한 考察 : 特히 Ion反應의 Radical 反應에 있어서의 基礎理論에 對해서

鄭元謨 大田工業高等專門學校 1969 論文集 Vol.4 No.-

Though the quality and reaction of organic and inorganic compound must be considered as to the oxidation reaction of organic compound, and the relations between the theory of electrons, the theory of reaction construction and chemistry of solid must be explained; only partial oxidation is mentioned here. From the oxidation of the organic compound, direct oxidation-slow oxidation which is turned up by air generally in low temparature; alcohol oxidation - oxidation process of the movement of electron which shows such phenomenon as herlerolytic oxidation; and aldehyde oxidation - proper oxidation by using herterolytic oxidizing agent because the reaction proceeds rapidly that makes aromatic aldehyde like Connzzaro reaction into strong alkali - are chorea. Keton is more difficult to be oxidized than alcohol or olefine, but it is oxidized especially by saturated hydrocarbon or reagent which is not worked in alcohol. Calbonic acid is a material which is seldom oxidized but the enolization in the oxidation process of the calbonic acid is important. Because the oxidation of armatic hydrocarbon does not have any space, electrons of the whole malecules are tightly combined all together and it is not effected by oxidizing agent. So there is a means that we take advantage of the activation by light.

325 MHz 이동통신용 집중소자 Y형 서큘레이터의 설계

고연수,성원모,최학근 단국대학교 신소재기술연구소 1997 신소재 Vol.7 No.-

본 논문에서는 325 MHz 이동통신 기지국에 사용되는 집중소자 Y형 서큘레이터를 해석하고, 기존의 복잡한 수식을 통하여 설계하는 방법 대신 도표를 사용해 설계하는 간단한 설계방법을 제시하였다. 그리고, 실제 설계 제작하여 측정결과와 해석결과를 서로 비교 분석하였다. 설계방법은 % 대역폭과 페라이트 사이의 스트립선로의 고유인덕턴스 그리고 페라이트의 포화자화량과의 관계로부터 내부자계의 세기를 결정한 후 이로부터 입력 어드미턴스를 구해 외부의 정합회로를 결정하는 설계방법으로 전개하였다. 해석은 페라이트의 텐서투자율의 성분 μ와 k가 복소함수가 아니라고 가정하고(무손실이라고 하고), 정합회로까지 모두 고려한 등가회로에서 제 3포트를 격리포트로 하여 고유치 해석방법을 적용하여 손실 및 임피던스 그리고 산란행렬 고유치의 위상을 구하였다. 그리고, 이러한 해석방법으로부터 중심주파수 325 MHz에서 %대역폭, 포화자화량, 스트립선로의 고유인덕턴스와 내부자계의 관계를 밝혀서 도표로 제시함으로써 서큘레이터의 설계에 이용할 수 있게 하였다. 실제 제작된 서큘레이터는 중심주파수 325 MHz에서 반사손실이 -31dB, 아이솔레이션이 -32dB, 삽입손실이 -0.219dB로 나타내며, 해석을 통하여 얻은 결과와 거의 유사함을 알 수 있었다. In this paper, a new design method of Iumped-element Y circulator for 325 MHz mobile communication is proposed and the analysis results compared with the measured results. To develop the new design method, internal magnetic field intensity is derived from &bandwidth, characteristic inductance of stripline between two ferrites and saturation magnetization of ferrite to get the input admittance of circulator to obtain the external matching network. The analysis of circulator was based on the assuming that the circulator was lossless and the third port of its equivalent circuit was isolated, and the impedance and phase of scattering coefficient was calculated through the eigenvalues analysis. From this analysis, the relation among %bandwidth, saturation magnetization, characteristic inductance of stripline and internal magnetic field was found and the diagram for the design was suggested. Experimental results of fabricated circulator represent -31dB return loss. -32dB isolation and -0.219dB insertion loss at the center frequency 325MHz and support the theoretical prediction.

유한 반사판을 갖는 Quadrifilar Helix 안테나의 해석 및 설계

이창희,성원모,최학근 단국대학교 신소재기술연구소 1996 신소재 Vol.6 No.-

유한 반사판을 갖는 Quadrifilar Helix 안테나의 복사특성을 해석하기 위하여 반사판을 WireGrid로 모델링하고 모멘트법을 적용하였다. 안테나의 구조피라미터를 변화시키면서 빔폭, 이득, 입력임피던스, 복사패턴을 계산하여 설계에 이용할 수 있는 데이터를 제시했다. 제시된 설계데이타를 이용하여 위성이동통신용 안테나를 제작하고 복사패턴과 이득, 축비등을 측정하였다. 복사특성 측정치는 이론적 계산치에 근접하는 것으로 나타났으며, 이득을 제외한 다른 복사특성들도 설계사양을 만족하는 것으로 나타났다. The wire-grid model and moment method were adopted to analyze radiation characteristics of quadrifilar helix antennas with finite plate. Radiation characteristics for various structure parameters of the antenna were calculated and presented. A mobile satellite communication antenna was designed and manufactured by use of the presented data. The measured radiation charicteristics, such as axial ratio, half power beamwidth, radiation pattern are in good agreement with the computed results and well satisfy the design specifications except gain.

광양항만의 유치산업전략

모수원(Mo Soo-Weon),박홍균(Park Hong-Gyun),이광배(Lee Kwang-Bae) 조선대학교 지식경영연구원 2005 지역개발연구 Vol.10 No.2

For the selection of attraction industry of foreign investment in the free trade zone of Gwang Yang Bay, an overall consideration should be made considering aspects such as the industry development strategy of Gwang Yang Bay and the regional industry development strategy of the local government. For Gwang Yang Bay to grown into the E-Hub Port of Northeast Asia, the development of the back zone of Gwang Yang Port should be accelerated. There is a need to offer custom made incentives for the core businesses. Packaging is a field of combined science and a future industry. Packaging industry, which has close association with regional industry and regional college's research human resources, should be combined with design and set up a packaging industry complex.

TRAMP 트랜잭션 기반의 메타데이터 및 저널 복제 복구 기법

이모원(Mo-Weon Lee),원유집(You-Jip Won),김영진(Young-Jin Kim),김락기(Rak-Ki Kim),박재석(Jae-Suk Park),이주훤(Ju-Wheun Lee) 대한전자공학회 2006 대한전자공학회 학술대회 Vol.2006 No.11

In this paper, we propose metadata, journal replication and recovery technique to protect filesystem installed in digital appliance device from physical damage. Because hard disk can easily be damaged by user’s mistake in such environment, it may make filesystem can not be used anymore. So we propose transaction based metadata replication and recovery technique. In this algorithm, secondary metadata block updates its value with primary metadata as one transaction at same time. So if filesystem can’t read its metadata properly, it can be simply replaced by secondary meta data block and recovered by sector-remapping. To give more robustness, we also implement journal file replication and recovery technique. Lastly we proceed test of filesystem adjusted with TRAMP.

非線形 電氣油壓位置制御시스템用 制御器 設計

徐源模(Weon-Mo Seo),陳康奎(Gang-Gyoo Jin),河注植(Joo-Shik Ha) 대한전기학회 1992 전기학회논문지 Vol.41 No.1

찰흑미분 첨가 식빵의 저장기간별 이화학적 특성 변화

김원모(Weon Mo Kim),이윤신(Yoon Shin Lee) 한국조리학회 2011 한국조리학회지 Vol.17 No.1

To analyze the quality characteristics of loaf bread added with waxy black rice flour by its storage period, this study stored loaf bread made of wheat flour added with 10%, 20%, 30% and 40% of waxy black rice flour for 4 days while measuring water activity, pH, chromaticity and texture. The results of the study are as follows. Based on the results of measurements of water activity of loaf bread added with waxy black rice flour by storage period, the control group and the groups added with 10% and 20% of waxy black rice flour showed significantly low water activity from the 3rd day of storage and the groups added with 30% and 40% of waxy black rice flour from the 2nd day of storage. As for pH changes over the storage period, only the group added with 40% of waxy black rice flour showed significant pH decreases from the 3rd day of storage while the control group and the groups added with 10% and 30% of waxy black rice flour showed significant pH decreases from the 2nd day of storage. As for the pH of each group of loaf bread by storage days, the loaf bread added with 40% of waxy black rice flour showed significantly higher pH compared to the control group. Brightness decreased significantly from the 2nd day of storage and the yellowness from the 3rd day of storage. As for chromaticity changes by storage days, as the amount of added waxy black rice flour increased, L values and b values decreased while redness values significantly increased. Over the storage period, hardness, gumminess and chewiness increased and the waxy black rice flour added groups showed lower increase rates compared to the control group. Especially, the groups added with 30% and 40% of waxy black rice flour showed low hardness changes. Springiness level was decreased as the addition rate of waxy black rice flour was increased, and the group added with 40% of waxy balck rice flour showed the lowest springiness level. It also showed lower cohesiveness up to the 3rd day of storage compared to the day of manufacturing. Therefore, it could be seen that the loaf bread made from wheat flour added with 30% of waxy black rice flour showed better quality feature until the 3rd day of storage than the other experimental groups.

환율변동성과 무역흐름

모수원(Mo Soo-Weon),김영숙(Kim Young-Suk) 조선대학교 지식경영연구원 2001 지역개발연구 Vol.6 No.2

여성의 연령에 따른 Bakery 이용실태에 관한 연구

김원모(Weon Mo Kim),이윤신(Yoon Shin Lee) 한국조리학회 2002 한국조리학회지 Vol.8 No.2

PSO기반 디젤엔진 제어기 최적화

강원모(Weon Mo Kang),안창선(Chang Sun Ahn) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.4