• 동력기계공학회지
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• 제17권1호
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• pp.27-35
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• 2013

SCR (Selective Catalytic Reduction) on DPF (Diesel Particulate Filter) is a multi-functional after-treatment device which integrates soot filtration and DeNOx function into a single can. Because of its advantage in package and cost, the SCR on DPF is considered as a potential candidate for future application. It inherently employes wall flow type monolithic reactor so ash included in exhaust gas may deposit inside the inlet channel of this device. This study is intended to identify the impact of ash deposit on SCR reaction under wall flow type monolithic reactor. Simulation approach is used so relevant species transport equations for wall flow type monolith is derived. These equations can be solved together with momentum conservation equations and give solution for conversion performance. Both ash deposit and clean catalyst case are simulated and comparison of these two cases gives an insight for the impact of ash deposit on conversion performance. Ash deposit can be classified as ash layer and ash plug. and impact of ash deposit is described along with different morphology of ash deposit.

• Communications for Statistical Applications and Methods
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• 제25권5호
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• pp.489-499
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• 2018

Jeonse is a unique property rental system in Korea in which a tenant pays a part of the price of a leased property as a fixed amount security deposit and gets back the entire deposit when the tenant moves out at the end of the tenancy. Jeonse deposit is very important in the Korean real estate market since it is directly related to the residential property sales price and it is a key indicator to predict future real estate market trend. Jeonse deposit data shows a skewed and heteroscedastic distribution and the commonly used mean regression model may be inappropriate for the analysis of Jeonse deposit data. In this paper, we apply a Bayesian quantile regression model to analyze Jeonse deposit data, which is non-parametric and does not require any distributional assumptions. Analysis results show that the quantile regression coefficients of most explanatory variables change dramatically for different quantiles. The regression coefficients of some variables have different signs for different quantiles, implying that even the same variable may affect the Jeonse deposit in the opposite direction depending on the amount of deposit.

• 한국비블리아학회지
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• 제20권4호
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• pp.173-189
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• 2009

한 국가의 모든 출판물은 인류의 정신문화유산으로 각 국가도서관은 각 나라에서 생산된 모든 출판물을 수집 보존해야 하며, 그것을 지원하는 강력한 법적 장치가 납본제도이다. 이에 본 연구에서는 국내외 도서관 납본법에 대해서 분석하고 그 중에서 납본보상 여부, 미납본에 대한 제재조치 여부, 미납본의 경우에 대한 과태료 징수 절차, 구체적인 납본절차 등에 대해서 집중적으로 분석하였으며, 이를 기반으로 국가도서관의 납본율을 올릴 수 있는 방안을 모색하고자 하였다. 납본업무의 자체 수행, 납본지원시스템의 개발, 납본부서의 신설, 납본 부수 및 납본 보상의 개선 등이 그 방안으로 제시되고 있다.

• Korean Chemical Engineering Research
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• 제54권1호
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• pp.108-113
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• 2016

A miniaturized lab-scale Cu plating cell for the metallization of electronic devices was fabricated and its deposit uniformity and profile were investigated. The plating cell was composed of a polypropylene bath, an electrolyte ejection nozzle which is connected to a circulation pump. In deposit uniformity evaluation, thicker deposit was found on the bottom and sides of substrate, indicating the spatial variation of deposit thickness was governed by the tertiary current distribution which is related to $Cu^{2+}$ transport. The surface morphology of Cu deposit inside photo-resist pattern was controlled by organic additives in the electrolyte as it led to the flatter top surface compared to convex surface which was observed in the deposit grown without organic additives.

• 한국표면공학회지
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• 제37권1호
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• pp.28-39
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• 2004

The effect of trace metallic additives on microstructure, surface appearance and hardness of zinc electrodeposits was investigated by using sulfate bath and flow cell system. The preferred orientation of Zn deposit with Fe additive was (103)(104)+(002) mixed texture and that of Zn deposits with both Fe-Ni and Fe-Co additives was (10 1), while Zn deposits with Fe-Cr additives had (002) preferred orientation. The surface morphology of the zinc deposits was closely related to the preferred orientation of the deposits. The glossiness of Zn deposit with Fe-Ni additives was higher than that of pure Zn deposit, while the glossiness of Zn deposits with both Fe-Co and Fe-Cr additives was lower than that of pure Zn deposit. The hardness of Zn deposits with both Fe-Ni and Fe-Co additives was noticeably higher than that of Zn-Fe deposit, while that of Zn deposit with Fe-Cr additives was similar to that of Zn-Fe deposit.

• 한국도서관정보학회지
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• 제40권1호
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• pp.233-251
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• 2009

최근 디지털자료에 대한 납본 및 이용에 관한 관련 법률의 제.개정 및 시행 준비가 이루어지면서 이들 자료의 납본 체계 및 이용 보상에 대한 연구가 요구된다. 특히 우리나라는 도서관법 및 저작권법에 의거, 납본 및 이용에 따른 보상금 지급 제도를 시행중에 있으며, 디지털자료에 납본 관련 개정안에도 보상금 지급에 대한 내용이 포함되어 있기 때문에 이들 자료에 대한 보상금의 효율적인 관리 체계가 필요한 실정이다. 본 연구의 목적은 향후 디지털 자료의 납본 제도 시행에 따라 발생되는 납본 및 이용 보상금의 관리를 위한 보상금관리시스템 구축 방안을 제시하는 것이다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.876-881
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• 2006

This study was carried out to understand depositional environment and genesis of clayey soils that distributed in the Dongup area. On the basis of detailed observation and description on mineralogy, geochemical composition, geophysical properties, paleontological analysis of cored sediments, three sedimentary unit have been distinguished. From bottom to top, they are early Holocene freshwater muddy deposit(Unit I, fluvial swamp), late Holocene silt and muddy deposit(Unit II, alluvial deposit), late Holocene muddy deposit(Unit III, fluvial swamp). Unit II is divided into three part: the lower part-unweathered massive silt and muddy deposit, middle part-weathered layered slit and muddy deposit and upper part-weathered massive muddy deposit.

• 자원환경지질
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• 제1권1호
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• pp.9-34
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• 1968

Manganese ore deposits of the Samhan Changgun Properties are located at the valley of west-lope-side of Changgun-bong (1132m) occupied over the Myon border between Sochon-myon and Jaesan-myon Pongwha-gun, Kyongsang-Pukdo. Geology of the more property and it's vicinity consists of Wonnan formation and Yulri formation of pre-Cambrain and Changgun limestone formation, Mica-schist formation, quartizite formation and Jaesan formation (containing coal bearing zone the unknown age. And granites and dykes were intruded into the above formation later. 1. Management deposits is embedded the formation of Janggun limestone especially Contact zone in the contact zone to of Chunyang Granite limestone enclosed by Granite, and Maginal zone of fault line in the limestone. Therefore, Chunyang Granite is Closely related to ore deposit. Pegmatite which is near by ore deposit was intruded before mineralization and it seems to be a channelway of ore solution. The most important ore deposits of property grouped into south deposit, east deposit, east-Gachon deposit, South-Gachon deposit, Durimgok deposit and West deposit, out-crops at several place. Besides these deposits there also are several prospects on outcrop scathered. Hydrothermal alteration take place strongly in the well rock and it's sequence are Characterized as following; 1) Dolomitization 2) Carbonization 3) Mamgamotozation 4) Pyritization 5) Silicification 6) Oxidation 2. The grade of manganese dioxide is up to Mn 45% in Maximum, but generally, averaging Mn 30~35% of high grade ore and averaging Mn 30~32% of manganese carbonates are mined in his property.

• 한국도서관정보학회지
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• 제35권1호
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• pp.97-117
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• 2004

광복 후 우리나라 도서관계는 장서의 확충에만 급급하였다. 결과로 20세기 말에 들어와서는 서적을 보존할 공간이 협소하게 되었다. 장서 보존에 있어 중요한 요소의 하나는 자료를 수장할 공간이다. 따라서 도서관계의 중대한 관심사의 하나는 공간문제를 해결하기 위한 보존도서관을 마련하는 것이다. 이 문제를 해결하기 위해 여러 차원의 보존도서관을 설립해야 하는데, 보존이란 '보존' '보호', '복원'의 개념으로 나누어 정의되고 있다. 열람이 주목적이 아닌 자료를 보존하기 위한 도서관은 우리나라에서는 이미 고려시대부터 비롯되었고, 조선시대에는 외사고와 규장각의 규장외각에 계승되었다. 본고는 조선 정조년간에 설치된 규장외각의 설치, 보존도서관으로서 문헌의 '보존', '보호', '복원' 활동에 관해 분석한 것이다.

• 아태비즈니스연구
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• 제5권1호
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• pp.33-41
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• 2014

Since depositors are motivated by returns, it is important for Islamic banks management to understand the extent that rates of return on deposits influence their customers' decision to deposit. The main objective of the study is to explore the degree of influence of conventional bank's interest rate on Islamic bank's profitability and vice-versa. It has been seen from 2005 to 2011 that the rate of interest declared on deposit by conventional banks has a negative impact on profitability of both types of banks in Bangladesh. Rate of profit declared on deposit by Islamic banks is positively related with their profit earned but negatively related with profit earned by conventional banks. We see that rate of interest declared on deposit by Conventional Banks is positively related with their deposit volume but negatively related with Islamic Bank's deposit. On the other hand, rate of profit declared on deposit by Islamic Banks is negatively related with deposit levels of both types of banks. The survey result shows that almost 85% of the respondents are choosing Islamic banks only from their religious point of view and more than 60% of the sampled Islamic bank customers are reluctant to leave the bank even if conventional banks offer better interest rates.