Anomalous Beam Splitting Phenomena Based On Negative Refraction in Photonic Crystals

Chung, Kyo-Bang,Kim, Ahyoung Research Institute of Science and Technology HONGI 2005 Hongik Journal of Science and Technology Vol.9 No.-

We report an anomalous Y-branching phenomenon for normal incidence of light, in a 2D photonic crystal composed of dielectric rods arranged on a square lattice in air. From the calculation of the band structure and the corresponding equi-frequency contour, we examine the origin of this anomalous beam splitting. By performing the finite-difference time-domain simulation, we present the time evolution of the electromagnetic wave for the Y-branching phenomenon.

해방전 이북지역 개신교 주요인물 및 종교지형 연구: 주요인물의 상호관련성 및 ‘기독교 민족주의’ 사상 공유를 중점으로

정교진 ( Kyo Jin Jung ),임호정 ( Ho Jung Lim ) 기독교학문연구회 2022 신앙과 학문 Vol.27 No.1

개화 계몽기 이후 이북지역에서 성리학에 반하는 진보의 매개가 된 것은 다름 아닌 개신교였다. 본 연구가 구체적으로 다룬 이북지역의 주요세력의 지도자들인 안창호, 조만식, 한경직, 김교신, 김재준은 한국개신교 민족주의자들로 지칭할 수 있을 것이다. 어떤 측면에서는 ‘기독교 민족주의’가 이들 개신교 지도자들의 공통분모라 할 수 있다. 이 사상은 성리학을 기반으로 하는 ‘배타적 민족주의’의 대항마 성격이 강하다. 물론, 안창호와 같은 초기 민족주의자들은 성리학의 영향 아래 있었다. 하지만 이들이 기독교를 접하면서, 기독교 신앙에 민족주의를 접목시키며 ‘기독교 민족주의’를 주창하게 된 것이다. 보수주의 신학의 영향 아래 있던 초기 기독교 민족주의자들이 구축한 ‘기독교 민족주의’는 자유주의 신학을 추구했던 개신교 지도자들에게도 일정부분 영향을 미쳤다는 사실이다. 그것은 민족의 주체성 확립 및 실력배양 운동으로 나타났다. 하지만, 그들이 서 있던 종교지형은 분명하게 달랐고, 이 영향으로 오늘날 한국개신교 안에는 보수주의와 자유주의가 여전히 대척점을 이루고 있다. 그럼에도 불구하고, 양쪽 초기 개신교 지도자들은 ‘기독교 민족주의’ 정신으로, 더 큰 범주로는 ‘민족주의’ 사상을 바탕으로 인격수양 및 실력양성을 통한 개인개조 및 사회개조, 더 나아가 민족개조, 국가개조를 동일하게 꿈꾸었던 인물들이었다는 점이다. 오늘을 사는 우리에게 던져주는 시사점은 무엇인가. 오늘날 한국교회가 성도들에게 인격함양의 개인개조를 통한 사회개조 및 국가개조(남북통일)에 대한 사명감을 심어주고 있는가. 민족교육을 통한 민족정신이 발현되고 이것이 ‘기독교 민족주의’로 승화될 때 한국교회는 진정으로 한반도 통일에 주역이 될 수 있을 것이다. It was none other than Protestantism that became the medium of progress against Neo-Confucianism in the northern region after the enlightenment period. The leaders of the major forces in the northern region specifically addressed in this study, such as Ahn Chang-ho, Cho Man-sik, Han Kyung-Chik, Kim Kyo-shin, and Kim Chai-joon, can be referred to as Korean Protestant nationalists. In some respects, “Christian nationalism” can be said to be the common denominator of these Protestant leaders. This ideology has a strong antagonistic character to 'exclusive nationalism' based on Neo-Confucianism. Of course, early nationalists like Ahn Chang-ho were under the inf luence of Neo- Confucianism. However, as they came into contact with Christianity, they grafted nationalism into the Christian faith and advocated “Christian nationalism.” It is a fact that the “Christian nationalism” established by early Christian nationalists under the influence of conservative theology also had some influence on the Protestant leaders who pursued liberal theology. It appeared as a movement to establish a national identity and capacity-building movement. However, the religious landscape in which they stood was clearly different, and due to this influence, conservatism and liberalism are still on the opposite side until today in Korean Protestantism. Nevertheless, both early Protestant leaders dreamed the same dream which is self-reconstruction and society-reconstruction, further national-reconstruction, and nation-reconstruction through Personality discipline and capacity-building based on the spirit of 'Christian nationalism' and in a larger category 'nationalism'.

선비정신의 비극적 淨化

이경교 동국대학교 국어교육과 1994 동국어문학 Vol.6 No.-

江原道 旌善郡의 地名에 관한 연구 : 촌락명을 중심으로

文恩京,盧美慶 동국대학교 지역환경연구소 1994 地域環境 Vol.- No.12

원통형 마스터를 이용한 주축 오차운동 측정

김교형 嶺南大學校 工業技術硏究所 1991 연구보고 Vol.19 No.2

흰쥐에게 내독소의 비경구 투여가 혈청 및 간의 Alkaline Phosphatase 및 5'-Nucleotidase 활성도 변동에 미치는 영향

문교철,곽춘식,주일 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.3

The activities of the cytosolic, microsomal and mitochondrial alkaline phosphatase(ALP) and 5'-nucleotidase(5'-NT) in the liver were measured in order to evaluate the cholestatic changes, one of the hepatic damages under the endotoxin administration. And the activities of these enzymes in the serum were also measured. For administration of endotoxin, a dose of 5mg of endotoxin(lipopolysaccharide E. coli 026: B6, from Sigma chemical company, USA) per kg of body weight was administered through a right external jugular vein. Then the rats were killed after 3,8 and 24 hours of injection with endotoxin to measure the activities of the above enzymes in serum and their livers. Cyrtosolic and microsomal ALP and 5'-NT activities showed a significant increase between 3 and 8 hours after endotoxin administration. The activity of the mitochondrial ALP and 5'-NT in the liver showed no significant changes throughout the experiment. Serum ALP activity showed a increase without significace. But serum 5'-NT showed a significant increase at 8 hours after endotoxin administration. According to the results, it is suggested that cytosolic and microsomal ALP and 5'-NT activity is increased caused by increased biosynthesis and impairment of hepatic excretory function for these enzymes. And it is also suggested that increased activity of the serum ALP and 5'-NT is due to the reflux of these enzymes from the liver and due to leak into the blood through the damaged membrane of hepatocyte.

莊子의 精神境地 : 莊子의 無爲自然觀을 中心으로

成校珍 건국대학교 1978 論文集 Vol.7 No.1

Laotse made a study of the political and social problems but Changtse laid stress on the private religious spirit. Changtse ignored not only artificial courtesy but also education. The problems put forth by Changtse can be resolved into three areas; inactivity, purity and modesty. His insight becomes evident in his three chapters entitled Chemul (濟物) Yangsaengju (養生主) and Soyoyu (逍遙遊). In viewing the world from the point of view of creation he saw no consideration of merit or demerit, or life or death. His ideal was to rise above the world which was a kind of transcendentalism. The principle of identity is the closest to the thought of Changtse. The character of his theory lay emphasis on the conscious admiration of natural greatness, necessary liberty, optimism, negative judgment, the respect of the individual and the unlimited aspiration of man. Changtse's thought had three main concepts as its base: ① All truth was to be found in the creation. ② One found meaning in life only through the rejection of the world and worldly things and return to nature. and, ③ The humbling of self. By his faithfulness to this philosophy of life he was able to discover the perfection of self through the natural form and state. He held himself aloof from the demands of the ago, from having to decide between right and wrong, good and evil, beauty or ugliness, and truth or falsehood. He lived as though there was no time or space. He admired a profound idea and his life and thought stemmed from this basic pure understanding of the natural state from which he did not depart in his teachings. This understanding of nature can be seen in his writings of which some examples follow: Water is weak but it can overcome fire. The fallen tree is not cut down but continues to live. The imprudent man huts a high opinion of himself but he is disregarded by others. All living life is a natural phenomena. Creation is a reality. The human being is a small part of this whole universe. Heaven and earth are the roots and the trunk of the tree whereas mortal man is the branches and the leaves. Creation is a continuous process without a beginning or an end. His philosophy was that humbleness was the most important character of man. This ideal thought and action was in the final analysis the result of the weak being able to overcome the strong. He said that man was not to boast of his wisdom and virtue; Hot to desire praise and acclamation. The strong man does not return evil for evil, and the man who appears weak is strong in the end. The ideal philosophy of living is to be unselfish. He always tried to search for the self and its meaning in the natural, created universe. Nature is beyond the knowledge of man, he maid, and integrity is the beat policy. Abundance is no sooner incurred than all is lost. One should not be overly concerned about having sufficient food and clothing and shelter because it is often through their deprivation that one may achieve moral superiority of thought. He taught the ideal of the absolute mind and liberated thought. Virtue is born of integrity. The human being originally has the instincts of appetite and passion. The abandonment of worldly desires increases one's character. Changtse was characterized by his simplicity, humbleness, modesty and weakness which attitudes promoted his interests. His thought was very similar to the teachings of Jesus. All nature was like a mother. Human beings ale born dependent on the earth for sustenance, just as the earth is dependent on the rain and the sun. In the end humans return to the bosom of the earth from which they came. This earth or nature is the ultimate reality or truth.

Al-CuAl₂ 共晶合金의 一方向凝固組織과 機械的性質

金敎漢 영남이공대학 1982 論文集 Vol.11 No.-

The microstructure and mechanical properties of unidirectionally solidified Al-Cu eutectic alloys have been studied to research the effects of the growth rate. The temperature gradient is 80℃/cm and growth rate is controlled from 0.833mm/min to 18.75mm/min. The results obtained are as follows. 1) The interlamellar spacing is propertional to the growth rate and ;OR was 7.769x10^-5 mm^3/min. 2) The faster growth rate causes the higher mechanical strength. 3) Interrelationship between interlamellar spacing and hardness coincide with the Hall-Petch type equation.

傳統的 會計에 있어서 利益槪念의 有用性 檢討

金敎珍 경북대학교 경제경영연구소 1991 經商論集 Vol.19 No.1

토오크 측정 장치 개발

김교형,조우석 嶺南大學校 工業技術硏究所 2004 工業技術硏究所論文集 Vol.32 No.2

In this paper torque control system of screw fastener by strain gauge is investigated. Strain gauge sensor applicable to screw fasterner is designed and fabricated. Through the experiments the developed system has showed good screw fasterning capability. Industrial application of the developed system can be expected in terms of productivity increase and quality improvement of assembly lines.