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제1차 베트남전쟁에 관한 연구 - Dien Bien Phu전투를 중심으로 -
임정혁 ( Im Jung-hyuk ) 미래군사학회 2017 한국군사학논총 Vol.6 No.1
The First Indochina War or generally called Vietnam War began in 1946 until May 7, 1954 between Vietnam, Cambodia, Laos, and France. The Battle of Dien Bien Phu, the most representative symbol of the victory of East against the West, is an unprecedented event in the process of decolonization. Especially, it was very revolutionary that the powerful French elite troops with strong equipments and troops was defeated by colony Vietnam`s national liberation movement. At the end of 1953, the French troops, losing to the Vietnam Independence Alliance who had strong support from the public, blocked the nationalist`s supply route to Laos. The battle was started as soon as the French troops had occupied Dien Bien Phu in order to establish a foothold. About 10,000 of French army surrendered and 5,000 soldiers died. The battle had a serious impact on the French troops and also gave national shame. After the battle, with overlapping the Algerian crisis, France Fourth Republic collapsed in 1958.
축산농가 인근 강우유출수 처리습지의 장기운영에 따른 수질변화 및 처리성능 변동 특성
김영윤(Young Ryun Kim),정직영(Jik Young Jung),임정혁(Jung Hyuk Im),이석모(Suk Mo Lee),최성화(Seong Hwa Choi),손민호(Min Ho Son) 한국생태공학회 2016 한국생태공학회지 Vol.5 No.1
Water quality data acquired from 80 monitoring cases for last 9 years were analyzed to identify characteristics of variation on the treatment performance at the stormwater wetland. The surrounding areas of the wetland were mainly used for livestock pen and mechanic factories paved with permeable materials. Annual precipitation was in the range of 96 and 131 days with the highest values observed in 2014. Daily precipitation which was recorded less than 30 mm was 97 times, accounting for 85%, and 251 days as the annual interevent time. Suspended solids (SS) concentrations on an annual basis were increased for the first 3 years after wetland was constructed and then maintained its trend at some degrees. The concentrations of COD and TOC were also demonstrated similar patterns to the case of SS till 2011, and then decreased. As for TN, TP, the concentration of N and P in dissolved phases were increased which was not the case for the particulate phase showing decreasing pattern, and this finding could be attributed to the loading activities of livestock waste waters. Results of water quality variation caused by precipitation size were turned out that analyzed constituents were increased in the range below 60 mm but decreased above 60 mm except phosphorous, which could be explained by the flushing effect. Treatment performance during interevent period to deal with SS, COD, TN and TP on an annual basis was turned out with values of 31.9(± 26.3)%, 16.4(± 8.3)%, 33.8(± 20.6)% and 34.1(± 23.4)%. It was observed that annual performance was varied depending on the interevent period, precipitation size and input loads. In addition, it is critical to understand that the treatment performance was decreased as amounts of nutrient loadings were increased, which was also caused by the expansion of livestock pens and limited storage capacity from increased deposition of sediment. In order to improve treatment performance of wetland, it is worthwhile of noticing two points: 1) increasing storage capacity by maintaining dredging facilities properly and 2) reducing input loads with an aid of strict regulations. Also, an alternative strategy to improve treatment capacity could be wetland expansion.
표면 플라즈몬 공명 신호의 증폭을 위한 새로운 금 콜로이드 센서칩 제조와 특성 연구
임정혁,이경호,고광락,강신원,김재호 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
New gold colloidal film sensor chips were employed to enhance the sensitivity of the Surface Plasmon Resonce (SPR). Au collodal solutions were synthesized, and Au colloidal films were fabricated by immobilization of colloid on vacuum deposited Au film through the coupling agent of 1,8-diaminooctane. Specific interaction of human IgG antibody to human antigen was monitored by in situ SPR measurement from both a smooth and a Au colloidal films. Au colloidal film sensor chips resulted in 27 % enhancements effect for the same reaction on SPR angle shifts compared to a smooth Au film.
아파트의 적정 건설층수 결정을 위한 에머지(emergy) 평가
임정혁,강대석,이석모 한국환경과학회 2005 한국환경과학회지 Vol.14 No.5
The cost of the construction and management of new apartment buildings was evaluated using a monetary analysis and an emergy concept to provide a new perspective regarding the housing policy of Korea. The systems of analyses were typical apartment buildings with an area of 76.03m² per household in Korea built on the same size of land area. Three apartment buildings with different stories were evaluated and compared; 5-story, 15-story, and 20-story apartment buildings. The durable years of those apartments were assumed to be 40 years. The total cost of the construction and management of an apartment building was divided into three categories of construction, land purchase, and management. A 20-story apartment showed the highest cost and a 15-story apartment the lowest in the monetary cost analysis. In contrast, the emergy evaluation revealed a different pattern in the cost of construction and management, the cost increasing from a 5-story apartment to a 20-story one. This means that the higher the apartment constructed, the greater the cost in terms of real wealth. This result suggests that new evaluation methodologies like the emergy analysis should be used together with the monetary analysis to provide better insights on the national housing policy.