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김인배,안진선,Kim Inbae,Koopman Ben.,An Jinsun 한국환경보건학회 2004 한국환경보건학회지 Vol.30 No.5
Seaweed waste(SWW) was used to improve the liner effect in recycling of dredged soil as the landfill liner. It was found that the compressive strength became somewhat lower when SWW was added than that was when Ordinary Port-land Cement(OPC) only was added. The permeability coefficient, however, became lower in this case which showed the lowest permeability coefficient when the addition of SWW was one percent. Hence, to comply with the regulations for the compression strength and permeability coefficient of landfill liner, the addition of OPC should be over eight percent and that of seaweed waste one percent. The results of leaching test showed that the solidified material was not against the laws of waste control, so it is possible to use as the landfill liner and to expect sufficient economic effects because wastes such as dredged soil and seaweed can be recycled.
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수도 만식재배에 있어서 재식밀도가 수량구성요소 및 수량에 미치는 영향
김인배,이주열,In-Bea Kim,Joo-Yeol Lee 한국작물학회 1979 한국작물학회지 Vol.24 No.2
본 시험은 수도 만식재배에 있어 m^2당 재식밀도나 주상묘수를 달리 하였을때 수량구성 요소 및 수량에 미치는 영향을 구명코져 실시하였든바 그 결과를 요약하면 다음과 같다. 1 . 재식밀도의 증가와 주당묘수의 증가는 단위면적당 수수와 영화수를 증가시켜 수량의 증대를 가져왔다. 2 재식밀도의 증가, 주당묘수의 증가는 단위면적당 엽신장과 엽신의 건물중을 높여 영화수를 증가시켰다. 3. 재식밀도의 증가는 단위면적당 엽면적과 건물중을 높여 수량을 증대시키는 요인이 되고 있다. 4. 밀양2001의 만식기는 m^2당 재식밀도는 28~33주, 주당묘수는 6본식으로 하는 것이 유리할 것으로 본다. This study has been carried out to find out the optimum plant density and number of seedling per hill in the late season culture of rice at Chung Buk. P.O.R.D. Up to the level of 33 hills per m2 and 6 number of seedling per hill, rice yield was increased as the number of seedling per hill and plant density per unit areas increased. However it is recommendable to have a plant density of 28~33 hills per m$^2$ with 4~6 number of seedling per hill for the late season culture.
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정수장 슬러지(Alum Sludge)로부터 PACl(Polyaluminum Chloride) 응집제 제조에 관한 연구
김인배,이상봉,김동윤,김부길,Kim, In-Bae,Lee, Sang-Bong,Kim, Dong-Youn,Kim, Boo-Gil 대한환경공학회 2000 대한환경공학회지 Vol.22 No.3
Sludge produced from water treatment plants contains plenty of aluminum due to addition of coagulants, polyaluminum chloride(PACI) which has been widely used in most of water treatment plants. however. the whole of PACI is imported from other countries. In this research. the effective methods for recycling PACI from sludge of water treatment plants were developed and evaluated. Aluminum chloride hexahydrate($AlCl_3{\cdot}6H_2O$) was obtained by sparging HCl gas aluminum extracted from sludge using hydrochloric acid (HCI). This aluminum chloride hexahydrate was solidified by decomposition at $180^{\circ}C$. and dissolved in water to produce PACI. The optimum extraction rate was obtained at the condition of 10 minutes of reaction time. $105^{\circ}C$ of reaction temperature. 27.65%(W/W) of HCI concentration. The KS experiment proved that manufactured aluminum chloride hexahydrate was 98.7% degree and the recycled PACI coagulants agreed with the KS standard. The optimum temperature of decomposition was $180^{\circ}C$ and the basicity of the PACI was decided upon the extent of decomposition The compared experiments between purchased coagulant and manufactured coagulant presented that both coagulants had same performance for turbidity, DOC, $UV_{254}$ absorbance. and chlorophyll-a.
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중앙은행 적립금의 운용에 관한 공공선택이론적 연구 - 61개국 자료를 이용한 실험적 접근 -
김인배,김일중,권윤섭,Kim, Inbae,Kim, Iljoong,Kwon, Yunsub 한국개발연구원 2004 KDI Journal of Economic Policy (KDI JEP) Vol.26 No.2
Although various publicly reserved funds have recently come to the fore of academic and policy-making attention in Korea, researchers rarely take up the issue of the reserve fund retained from annual profits by the central bank (i.e., the Bank of Korea). Starting with the general public choice premise that bureaucrats seek to maximize their discretionary budget, this paper first provides a theoretical reasoning why central bank's bureaucrats would prefer retaining annual profits to turning them to the Treasury. The major tenet to be emphasized is that retained profits as a reserve fund can give the central bankers discretionary power in their disposition. In particular, we focus on the close relationship between the reserve fund and the discount windows. The latter, as a monetary instrument, has traditionally been demonstrated to cause secrecy, arbitrariness, and other bureaucratic amenities in the previous literature. Subsequently, this paper, based on 61 countries data, empirically verifies that the central bank's reserve fund is at least partially used to additionally increase the discount windows. Since an excessive use of discount windows results in inflationary bias, we conclude the paper with some policy suggestions to have such bureaucratic power of discretion in check. This paper, if in its experimental nature yet, is expected to shed a critical implication for establishing the meaningful independence of the central bank to a host of countries.
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김인배 ( Kim In-bae ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.25 No.1
최근 교량 신축이음부에 협착, 블로우업 등의 손상이 자주 발생되고 있다. 이는 최근 들어 발생빈도가 높아진 이상고온 현상(폭염)과 그 지속시간 증가가 영향을 주는 큰 요인으로 판단하고 있다. 실제 폭염지속일수가 최대로 기록된 2018년에 00교 등 여러 개소에서 신축이음부 포장 Blow up 현상이 다수 발생하기도 하였다 이를 위하여 반도체 검사, 도로포장 조사 등 여러 분야에서 다양하게 응용되고 있는 초고속 라인 스캔 카메라와 분석과정에서 AI기반(기계학습)의 이미지 센싱을 통하여 신축유간을 판별하는 화상처리 기술, 그리고 자동제어 기술 등을 융합하여 고속 주행하면서(100km/h) 신축이음 유간을 분해능 1.0mm까지 측정할 수 있는 시스템을 개발하였다.
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