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[논문]실시간 정밀 3차원 지형측량기법을 이용한 저수량산출시스템 개발
송석진,장용구,김상석,강인준 釜山大學校生産技術硏究所 2004 生産技術硏究所論文集 Vol.63 No.-
현재 고정밀도 저수량 측량에 사용되는 측량장비에는 수평위치결정방법으로 실시간 DGPS측량장비가 많이 활용되고 있고, 수심측량에는 디지털 음향측심기를 많이 사용하고 있다. 본 연구에서는 현재, 수심측량 결과처리 시 문제가 되고 있는 소프트웨어의 가격부담을 줄이고 수심측량과 내업처리에 의한 저수량산출을 통합처리 할 수 있는 국내 자체개발의 저가형 외 · 내업 일체형 저수량산출시스댐을 개발하였다.
( Ln-hee Hwang ),( Yutaro Sakai ),( Takayuki Matsuo ),( Yasumasa Tojo ),( Toshihiko Matsuto ) 한국폐기물자원순환학회(구 한국폐기물학회) 2018 한국폐기물자원순환학회 심포지움 Vol.2018 No.1
Slaked lime is commonly used as alkali agent for dry scrubbing of acidic gases such as hydrogen chloride and sulfur oxide in flue gas discharged from municipal solid waste incinerator (MSWIs). As the utilization amount of slake lime is the most among chemicals used in MSWI, its influence on the cost of flue gas treatment is significant. In our previous research, the on-site production condition of slaked lime using low cost quicklime was examined to develop a hydrator installed in MSWL As the result, slaked lime with same acid gas removal performance as commercial one was obtained. However, when the produced slaked lime was stored in a hopper and supplied with a feeder, the amount of adhesion on the wall surface was increased, which led to the problem that the quantitative supply to duct became impossible. Thus, the improvement of flow properties of the produced slaked lime was required. The aim of this research was to clarify the effect of the production conditions on the acid gas removal rate and the flow property of slaked lime and to find production conditions that both acidic gas removal performance and flow property become equal to or higher than commercial slaked lime. For this purpose, the molar ratio of distilled water to quicklime (MR=2.0 and 2.5), stirring rate (10~40rpm), residence time (30~60min) of hydration process, etc. were examined using a lab-scale of hydrator. Hydration rate, water content, hydrogen chloride removal rate, particle size distribution, specific surface are/pore volume, angle of repose, and <Uscharge rate of slake lime from circular orifice were measured to evaluate produced slaked lime. Residence time of quicklime varied by the angle of paddle (5~20°) in hydrator. Since the hydration rate was constant at 97% or more at the retention time of 46 min, the operation was performed with the paddle angle fixed at 10。. The water content of slaked lime produced at MR=2.5 was higher but it was decreased to the same level of slaked lime produced at MR=2.0 when the stirring rate was increased to 40 rpm. The water content of slaked lime obtained at MR = 2.0 was barely changed regardless of stirring rate. The angle of repose was high at MR=2.5, indicating that the flow property was comparatively poor. The discharge rate of the slaked lime produced at MR=2.5 was relatively slow too. It was considered that the flow property of slaked lime deteriorated as the amount of water added to quicklime increased. The variation of the removal rate of hydro gen chloride depending on stirring rate and MR was small. Slaked lime with hydrogen chloride removal performance equivalent to commercial one was obtained under the production condition tested in this work. It was suggested that slaked lime can be obtained at MR=2.0 and stirring rate=10 or 20 rpm, which has the same acid gas removal performance and flow property as commercial slaked lime.
SSM의 유통산업 규제정책의 형성과정에 관한 연구: 정책흐름모형과 옹호연합의 적용을 중심으로
최인규 ( Ln Kyu Choi ) 영남대학교 한국균형발전연구소(구 영남대학교 영남지역발전연구소) 2011 한국균형발전연구 Vol.2 No.2
본 연구는 기업형 슈퍼마켓(Super Supermarket: SSM) 의 유통산업의 변화와 관련된 정책갈등과 SSM에 대한 규제제도가 형성되는 과정에 대해 Kingdon의 정책흐름모형(PSF) 과 정책옹호연합모형(ACF)을 혼합한 분석들을 이용하여 분석하고자 한다. 이를 통해 먼저, 어떠한 흐름들이 촉발기제로 작용하여 정책변동의 창이 열렸는지를 확인하고, 둘째, 정책변동의 창에서 찬성옹호집단과 반대옹호 집단이 어떠한 신념체계와 전략을 가지고 경쟁하였는지를 살펴보고자 한다. 이러한 결과를 통해 우리나라의 유통산업에 대한 활성화와 규제정책의 결정과정에서 나타난 정책적 개선점과 방향성을 제시하고, 경험적 자료를 제공하였다. This research analyzed the formation of SSM distribution industry Regulation, Conjunct with Policy Alternative Stream(PSF) and Advocacy Coalition Framework(ACF). Through this, firsty, it confirms whether any flows acted as the trigger and the window of the policy change was opened or not. Second, in the window of the policy change, we try to look into whether it competed the strategy with the belief structure in which the approval defense population and opposition defense population how is or not. Through this result was presented, The political improvement and direction shown up in the decision procedure of the activation about the distribution industry and regulation policy. The empirical data was provided.
미주자유무역지대(FTAA)에 있어서의 미국과 메르코수르 간 역학관계
정인교 ( Ln Kyo Cheong ),권기수 ( Ki Su Kwon ) 한국외국어대학교 국제지역연구센터 2001 국제지역연구 Vol.5 No.2
미주 34개 국가들은 지난 4월 20~22일 캐나다의 퀘멕에서 개최된 제3차 미주정상회담에서 2005년 1월까지 FTAA 협상을 총결짓고 2005년 12월부터 협정을 발효키로 합의함에 따라 FTAA 출범이 가시화될 전망이다. FTAA 출범은 인구 8억 명, 총 GDP 12조 달러에 달하는 세계 최대의 단일시장 형성을 의미한다. 특히 FTAA는 미국과 같은 선진국, 멕시코와 같은 신흥공업국, 중남미 저개발국들간의 통합체이기 때문에 산업구조의 상호보호완성으로 인해 역내국산 산업·교역상의 시너지 효과가 매우 클 것으로 보인다. 미주지역은 우리나라 총 수출의 28.7%를 소화하는 시장으로 FTAA 출범은 중장기적으로 우리나라의 무역에 적지 않은 영향을 미칠 것으로 전망되는바, FTAA 출범에 대비한 대책 마련이 시급한 설정이다. FTAA 출범으로 우리나라의 전통적인 무역흑자시장인 중남미지역에 대한 수출은 10~12%(금액으로 7억 달러) 감소되고, 우리나라의 외국인직접투자 유치에 불리하게 착용할 것으로 분석된다. 따라서 FTAA 출범에 대비하여 우리나라는 주요 거대경제권과의 자유무역협정 체결 노력 강화, 중간재 위주로 수출구조 개선, 대중남미 부자진출 확대 등의 다각적인 전략을 강구할 필요가 있다. Thirty-four countries from North and South America met at the Third Summit of the Americas, in Quebec, Canada, on April 20-22, and agreed to create a free trade area of the Americas no later than December 2005. With a combined population of 800 million and a GDP of US$12 trillion, the FTAA will he the largest free trade area in the world. FTAA countries include developed countries like the U.S., some developing countries like Mexico and less developed countries in Central America. In view of these wide differences in levels of development and economic size, the FTAA is expected to provide opportunities to facilitate synergy effects on intra-regional industry and trade due to the complementary industrial structures among member countries. Considering the fact that the Americas account for 28.7% of Korea`s total exports, the FTAA will have a great impact on Korea`s international trade in the long run. Therefore, Korea should be prepared for a change in its trade environment. Due to the creation of the FTAA, Korean exports to Latin America, a traditional trade surplus market, will fall about 10-12%, or US$700 million, in addition to FDI inflows. To cope with the creation of the FTAA, Korea should seek various counteractions such as strengthening its policy towards FTAs with large major economies, transforming its export structure to focus on intermediate products instead of finished ones, and expanding investment in Latin America.
섬유총판 간세포암으로 오인된 부신 피질 호산성 과립세포종 1예
박인수(ln Soo Park),최승봉(Seung Bong Choi),조병훈(Byung Hoon Cho),남우석(Woo Suk Nam),원용성(Yong Sung Won) 한국간담췌외과학회 2009 한국간담췌외과학회지 Vol.13 No.3
Adrenocortical oncocytoma is a very rare disease which has been reported in 40 cases. A 27-year-old female patient was admitted for a suspicious hepatocellular mass on ultrasonogram. On CT scan, sono-guided needle biopsy and 18 F-FDG PET scan, all results were unsatisfactory. During laparotomy, the mass was originated from Rt. adrenal gland and liver was pushed sideward by the mass. On pathology report, and adrenocortical oncocytoma was diagnosed. Adrenocortical oncocytoma has pathological characteristics comprised of oncocytes with granular, eosinophilic cytoplasm, and sufficient mitochondria in their cytoplasm. There were no established criteria for differential diagonose between benign and malignant adrenocortial oncocytoma. There are no sufficient data for the long-therm outcome of adrenocortical oncocytoma in the medical literature. Thus we report a case of adrenocortical oncocytoma with review of the related literature.