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박웅철,정종식 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
현재 상업적으로 대량 생산되고 있는 안료의 제조방법과 그의 분석방법을 논의하고자 한다. 전 세계 염안료 시장규모는 400억$(염료 30%(400만톤), 안료 70%(700만톤), 2019년) 규모이고 연평균 5% 성장률을 보이고 있다. 안료는 TiO<sub>2</sub> 200억$, 무기물 30억$, 유기물 70억$ 규모이고, 응용분야는 도료 및 코팅 29%, 섬유 25%, 인쇄용 잉크 18%, 플라스틱 14%, 기타 산업 14% 이다. 우리나라 시장은 염료 1.5억$, 안료 7.5억$ 규모이다. 욱성화학에서 제조중인 아조계 유기안료(용성, 불용성), 형광안료, 무기안료 등의 이론, 제조 공정 및 분석방법(원료, 제품, 유해물질)과 안료의 분류체계(Colour Index) 및 물성을 설명하고자 한다.
박웅철,정종식 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
본 연구는 해빛, 형광등, 자외선등의 빛 에너지를 받아 녹색 또는 청색의 인광을 발하는 물질을 개발에 관한 것이며 야간 표지판, 비상구, 안내표지판, 특히 도로차선의 시인성 향상을 위해 사용할 수 있는 장시간 발광이 지속되는 무기 인광체 연구 이다. 장시간 발광을 하며 휘도가 높고 내광성이 우수한 발광 물질을 얻기 위하여 모체로서 (MO)n-Al<sub>2</sub>O<sub>3</sub>를 사용했다. 활성제로서 희토류원소의 산화물을 소량 첨가하여 고휘도의 인광을 내는 물질을 제조한 것이며 요약하면 다음과 같다. Al<sub>2</sub>O<sub>3</sub>와 SrCO<sub>3</sub>에 활성제로서 희토류원소의 산화물을 소량 첨가하여 장시간 분산했다. 여과 건조한 고형물에 융제로 붕산을 첨가 혼합 건조했다. 이것을 전기로에 넣어 수소와 질소 혼합 기체의 환류하에 1400℃로 가열한 후 반응시켰다. 소결온도가 증가함에 따라 입자가 성장하였고, 1100℃이상에서는 SrAl<sub>2</sub>O<sub>4</sub> 단일상만 보였고, 발광파장은 520nm로 큰 변화 없지만 강도는 증가 했다.
박웅철 ( Woong Cheul Park ) 한국외국어대학교 중동연구소 2007 중동연구 Vol.25 No.2
After the September 11 terrorist attack on the US, the Bush Administration declared “War against Terror”. Through the war, the Bush Administration came to realization that most terrorists were nationals of Islamic countries where democracy is not practised and that those terrorists were nurtured by Islamic fundamentalists. Having this in mind, the Bush Administration formulated an initiative and planned to announce it in June 2004 at the Sea Island Summit of the G8 countries. Somehow, the document was leaked to al-Hayat newspaper which in turn published it on February 13, 2004. It was revealed then that the proposed Greater Middle East Initiative called for Good Governance, establishment of the knowledge based society and the expansion of the economic opportunities. The US idea to impose the American type of democracy upon the Greater Middle Eastern countries that have different cultural, religious and historical background was not welcomed by the most of the concerned countries, especially the Arabs. Positions of the Arab countries were categorized into three: the first group included the ones that supported the idea, the second was those who called for dialogue with the US and the third was those who rejected the initiative completely. This paper studies the reaction of the Syrian Arab Republic to the initiative. Syria ,which is one of the two countries that did not sign a peace accord with Israel, rejected the initiative. The study attempts to reveal the elements that affected the Syrian foreign policy decision making process whether they are historical, cultural, religious or geopolitical. Along the study, the relation between the US and the Middle East in general and between US and Syria in particular are also considered. In conclusion, it became clear that Syria ,which is still considered by US as one of the countries that sponsor terrorism, supported the US in its was against terror at the beginning. With a new young president, Bashar al-Assad, since June 2000, Syria is well aware of the fact that political, economical and social reforms are required to enable the country to become an active member in the New World Order. Syria, under the pressure of the international community, withdrew its military forces from Lebanon in May 2005. Thus, the influence of Syria in Lebanon, which was one of the closest allies in the eyes of the Syrian Government in its war against Israel, has been weakened. Syria is at the crossroads for transformation. Nevertheless, Syria rejects the reform imposed upon it by external pressure, especially by the US, which is a close ally of its archenemy, Israel, and which has maintained double standards in dealing with Middle Eastern issues. Syria continues to proceed on its own way for reform.
백홍규,조지현,김홍섭,박동철,유병연,박웅채,조형구 건국대학교 의과학연구소 1993 건국의과학학술지 Vol.3 No.-
Hydronephrosis, which is a common disorder of childhood, may be secondary to a number of abnormalities of the urinary tract. A kidney containing more than 1,000ml fluid in its collecting system is generally defined as giant hydronephrosis. The common clinical manifestations of giant hydronephrosis are abdominal distension and loin or abdominal pain. The patient seems to seek medical help late due to tolerable symptoms and particularly in the state of poor economic condition. We present a giant hydronephrosis of contents of 7,000ml associated with ureteropelvic junction stricture on a 8-year-old male. The final diagnosis was performed by exploration of abdomen and nephrectomy was done.