슬래그시멘트 비용경쟁력의 변화가 온실가스 배출에 미치는 영향 연구

박영구(Park Young Gu),이원구(Lee Won Goo),김광온(Kim Kwang On) 한국에너지기후변화학회 2011 에너지기후변화학회지 Vol.6 No.2

In this study, considering the cost of transporting the cement product, the change in cost competitiveness is evaluated in terms of supply and demand. Multi regional model is developed for evaluation, focusing on domestic cement supply and demand. TIMES model based on optimization techniques is used to achieve the analysis. This is a technical-economic model, which is for the entire energy system. Consequently, unless regional slag demand is limited, maximum increasing ratio of slag demand is equivalent to 27.1%.(2020 production level). Under maximum 65% constraint based on past level, it is analyzed that total domestic demand is 23.7% of total cement demand. If 1% increase or decrease in demand and supply of slag cement, GHG emission approximately has 0.5% inverse correlation. This study shows that increase in the supply of slag cannot be directly related to increase in supply of slag cement. This result can be further used for realistic GHG emission reduction potential and cement transportation planning in cement industry.

1930 년대 미곡정책의 (米穀政策) 성격에 관한 연구 - 미곡생산비논쟁 (米穀生産費論爭) 관련문서를 중심으로 -

박영구 ( Young Gu Park ) 경제사학회 1990 經濟史學 Vol.14 No.-

환축에서 분리한 대장균의 항균제 감수성 및 독소생산능

김영환 ( Young Hwoan Kim ),장지택 ( Jee Taeg Chang ),장영술 ( Young Sool Chang ),오강희 ( Kang Hee Oh ),박영구 ( Young Gu Park ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.21 No.2

The present study was carried out to investigate the biochemical characteristics, antibiotic susceptibility and toxin(ST, LT, VT1.2 type) production test of 60 Escherichia coli isolated from diseased domestic animals in southern area of Kyungbuk province from April to December 1997. 1. The biochemical and cultural reaction were consistent with the classification criteria of Edwards and Ewing. 2. In antibiotic susceptibility test, 60 E coli showed highly susceptible to CL(96.7%), XNL(86.7%), AN(81.7%), SXT(61.7%), Lin(55%), GM(53.3%), KM(41.7%), N (41.7%), ENR(40%), AM(40%), CF(30%), S(13.3%) and Te(11.7%), in order. 3. Sixty E coli isolates were multiful resistant to seven or more antibiotics incombination. 4. Three strains for 60 E coli were detected heat-labile enterotoxin(LT) and that`s titers were 2,8 and 16, respectively.

TiO₂를 이용한 질소산화물 제거 특성 평가

박준규,임희아,박영구,Park, Jun-Gu,Lim, Hee-Ah,Park, Young-Koo 한국응용과학기술학회 2019 한국응용과학기술학회지 Vol.36 No.2

대기오염물질 중 미세먼지는 심각한 사회적 환경문제로 인식되고 있다. 미세먼지의 원인 물질 중 하나인 질소산화물(NOx)은 석탄화력발전소의 연소공정에서 주로 발생하므로 효율적인 NOx 제거가 필요한 실정이다. 본 연구에서는 선택적 촉매 환원법(Selective Catalytic Reduction, SCR)을 이용한 NOx 제거에서 $TiO_2$ 광촉매의 NO 제거효율을 연구하였다. NO 제거효율을 평가하기 위해 발열제가 내장된 $Al_2O_3$ 기판 표면에 $TiO_2$ 촉매와 인산염의 접착 바인더를 혼합하여 도포한 후 제조된 기판을 열처리하면서 실험을 수행하였다. 온도에 따른 촉매의 NO 제거효율을 평가하였고, 촉매의 물리화학적 특성을 위하여 XRD, SEM, TG-DTA, BET 분석을 수행하였다. NOx 제거 효율은 시간에 따른 온도변화($250^{\circ}C{\sim}500^{\circ}C$)로 20분에서 제거효율은 58.7%~65.9%이며, 30분에서 63.7%~66.0%로 나타났다. 질소산화물 제거용 SCR로 사용되는 $TiO_2$는 $300^{\circ}C$가 제거효율이 가장 효율적인 것으로 판단된다. Fine dust in air pollutants is recognized as one of the most serious social environmental problems. Most of the NOx is generated in a combustion process such as that of a coal-fired power plant, and therefore efficient elimination of the NOx from the coal-fired power plants is needed. This study investigates the removal efficiency of using $TiO_2$, a photocatalyst, to remove NOx by Selective Catalytic Reduction (SCR). To evaluate the NOx removal efficiency, $TiO_2$ catalyst and phosphate binder were mixed on the surface of the $Al_2O_3$ substrate with the exothermic agent, and the substrate was heat-treated. The NOx removal efficiency of the catalysts was evaluated according to the temperature, and XRD, SEM, TG-DTA and BET analyzes were performed to investigate the physicochemical properties of the catalysts. NOx removal efficiency was 58.7%~65.9% at 20min, 63.7~66.0% at 30min with temperature change according to time($250^{\circ}C{\sim}500^{\circ}C$). The $TiO_2$ used in the SCR for NOx removal is judged to have the most efficient removal efficiency at $300^{\circ}C$.

부산상공회의소의 경제적 역할, 1945-60

박섭 ( Sub Park ),김종한 ( Jong Han Kim ),박영구 ( Young Gu Park ),장지용 ( Ji Yong Jang ) 한국경제통상학회 (구 한국경상학회, 한국국민경제학회) 2006 경제연구 Vol.24 No.4

여성농업인 바우처의 사용실태에 대한 분석과 시사점 - 충청남도의 행복바우처를 중심으로 -

이혜인 ( Lee Hye-in ),박영구 ( Park Young-gu ),김호 ( Kim Ho ) 한국유기농업학회 2021 韓國有機農業學會誌 Vol.29 No.2

The role of female farmers is getting more important in decreasing of farmhouses, lack of young farmer, feminization and aging of farming population. In reality, female farmers have done two things of housework and farming. They have lived in the low level of welfare and cultural activities. The purpose of this study is to analyze the implementation and operation situations of the women farmers’ happiness voucher policy in Chungnam, in order to suggest development measures. The results of this analysis are as follows: First, female farmers had high awareness and satisfaction for the happiness voucher. Second, they were not satisfied with selectable terms. Third, there was a limit to use the full amount due to low accessibility in rural areas. Fourth, the subsidy scale and the self-burden fee was not appropriate.

4차산업혁명 시대 농업·농촌 미래 전략

김연중(Kim Yean-jung),박영구(Park Young-gu),이정민(Lee jung-min) 한국콘텐츠학회 2022 한국콘텐츠학회 종합학술대회 논문집 Vol.2022 No.7

배추 · 무 예측모형 고도화 방안

박지연(Ji-Yun Park),박영구(Young-Gu Park) 한국농촌경제연구원 2013 한국농촌경제연구원 기타연구보고서 Vol.- No.-

한국농촌경제연구원이 시행하고 있는 농업관측사업은 생산자의 생산 및 출하조절을 유도하고 정부의 수급 및 가격 안정대책 추진에 기여함으로써 농축산물 수급안정에 이바지하고 있다. 최근 들어 채소류 가격 변동 폭이 커지면서, 가격안정을 위한 정책적 관심도가 높아지는 상황이다.또한 기상, 생육 등을 종합적으로 고려한 생육단계별 기상과 인과관계가 연계된 예측모형 개발의 필요성은 더욱 커지고 있다. 이제까지 무는 활용 가능한 모형이 없었으며, 배추의 경우도 사용 중인 수급예측모형은 2010년에 개발되어 최근의 기상변동 심화로 수급 및 가격 전망치의 편차가 발생하였다. 따라서 본 연구에서는 기존 배추수급모형의 한계점을 보완하고 기상과 생육단계 등을 고려한 중·단기선행관측모형을 개발하였다. 배추의 수급예측모형, 무의 공급예측모형을 개발하여, 생산자의 생산, 출하 의사결정과 정부의 정책 수립 시 수급 및 가격 안정대책 수립의 참고자료로 활용하도록 재배면적, 예상생산량, 예측가격 등의 선행관측정보를 제공하고자 한다. 배추와 무를 봄, 고랭지, 가을 작형으로 구분하여 각 작형별 재배면적반응함수와 단수함수를 추정하였으며, 이를 이용하여 총생산량을 계산할 수 있다. 재배면적반응함수는 가격정보를 이용하여 추정하였는데, 재배면적이 일정하게 유지되고 있는 강원도 고랭지 작형을 제외한 나머지 작형들은 전년도의 해당작형의 가격 또는 당해 연도의 전작형의 가격이 재배면적에 영향을 주는 것으로 나타났다. 단수함수는 생육단계별 기상정보를 이용하여 추정하였는데, 대체적으로 단수는 기상의 영향을 받는 것으로 나타났으며 특히 정식기의 기상과 저온에 크게 영향을 받는 것으로 나타났다. 배추의 가격함수는 시장반입량과 전월가격, 가처분소득 등을 이용하여 추정하였으며, 월별 효과를 제외하고는 시장반입량과 전월가격에 영향을 받는 것으로 나타났다. Providing the guideline of production and shipments and contributing to supply and price stabilization measures of government, the agricultural outlook project conducted by the Korea Rural Economic Institute (KREI) has contributed to stabilization of supply and demand of agri-livestock products. However, in recent years, the fluctuation of vegetable prices has grown. Hence, a price stabilization policy has been more important. Moreover, there is a growing need for a forecast model which can give an accurate explanation of climate effects integrated with development stages. There is no available model for radishes, and in case of Chinese cabbages, the model, which has been used for forecasting so far, was developed in 2010 and shows many deviation problems related to recent climate change. Hence, in this study, we supplement the limitation of the previous cabbage supply-demand model, and develop the supply-demand outlook model including climate conditions and growth stages. Developing the cabbage supply-demand outlook model and the radish production outlook model, we can provide outlook information such as the number of hectares, estimated production, and prices. The information can be used in decision making of production and shipment and in governmental policy making. We divide Chinese cabbage and radish into three categories and estimate acreage and yield functions for each. Using the estimation results, we can calculate the total product quantity. For the estimation of acreage planted, we use price information. We find that except the high altitude area in Gangwon, acreages of all types are affected by each type"s price in the previous year or by the price of the previous type. For the estimation of yield, we use weather information in biological growth stages. Our study shows that yields are affected by climate and especially by climate in the planting period and cold weather. The price of Chinese cabbage is estimated with quantity supplied in markets and previous monthly price and disposable income data, and the estimation result shows that Chinese cabbage prices are affected by quantity supplied and the previous monthly price.

도시가스 분배 부문 메탄 탈루 배출계수 개발 방법론 연구

민병무(Byoung-moo Min),박영구(Young Gu Park),김보식(Bo Sik Kim),김범수(Bum Soo Kim) 한국가스학회 2022 한국가스학회 학술대회논문집 Vol.2022 No.5

도축우 소장에서 Clostridium perfringens 분리 및 시간경과에 따른 균수변화 추이

김정화 ( Jung Hwa Kim ),최일영 ( Il Young Choi ),홍현표 ( Hyun Pyo Hong ),조민희 ( Min Hee Cho ),박영구 ( Young Gu Park ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.2

This study was conducted to investigate the biochemical characteristics, the population and antibiotic susceptibility test of Clostridium perfringens isolated from intestinal contents of slaughter cattle in Kyung-ju and Po-hang. 1. In slaughter cattle Cl perfringens were isolated from intestinal contents of 51 of 101 cases(50.4%) and the population were <10(5) cfu/ml of 44 cases(86.3%). 2. In antibiotic susceptibility test, ampicillin, bacitracin, cephalothin, penicillin polymyxin B were highly susceptible, chloramphenicol, erythromycin, tetracycline were lowly susceptible, gentamicin, kanamycin, amikacin, streptomycin, sulfamethoxine, sulfamethazine were resistant. 3. In leaving test intestinal contents leaved for 0, 4, 8, 16, 32 hours in room temperature and population of Cl peifringens were gradually increased.