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      • KCI등재

        컨테이너 검색기 이송대차 추진용 선형 유도전동기의 2차측 리액션플레이트 재질에 따른 특성 연구

        정재훈(Jae-Hoon Jeong),최장영(Jang-Young Choi),성소영(So-Young Sung),박종원(Jong-Won Park),임재원(Jaewon Lim) 대한전기학회 2016 전기학회논문지 Vol.65 No.1

        This paper presents the analysis of the analysis of thrust characteristics of linear induction motors(LIMs) according to secondary reaction plate. LIMs are well known as high speed transport systems, which can obtain thrust directly without gears and links, or auxiliary mechanisms. A simple structure, easy maintenance, and less environmental pollution are advantages of LIMs. In transport systems using LIMs, the secondary reaction plate is an important design factor, because it has considerable impact on the cost of the railway as well as the performance of the LIMs. This paper deals analyzed the characteristics of linear induction motor used for moving the vehicle of container scanner. Thrust, efficiency and load characteristic were interpreted with FEM regarding two models whose material of secondary reaction plate was copper and aluminum. It suggested the interpretation of thrust, efficiency and power factor characteristic along slip and compared the operation ability of linear induction motor through characteristics analysis along the load.

      • SCIESCOPUSKCI등재

        Ganglioside GM1 influences the proliferation rate of mouse induced pluripotent stem cells

        ( Jae-sung Ryu ),( Kyu-tae Chang ),( Ju-taek Lee ),( Malg-um Lim ),( Hyun-ki Min ),( Yoon-ju Na ),( Su-bin Lee ),( Gislain Moussavou ),( Sun-uk Kim ),( Ji-su Kim ),( Kinarm Ko ),( Kisung Ko ),( Kyung- 생화학분자생물학회(구 한국생화학분자생물학회) 2017 BMB Reports Vol.50 No.6

        The ACKNOWLEDGEMENTS should be corrected as follows, "This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea. The published article in this journal was a part of the 2013 Doctoral thesis of Jae-Sung Ryu submitted to Wonkwang University, Korea." and not "This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea."

      • KCI등재
      • KCI등재

        정수 슬러지의 고화처리에서 황토 및 첨가재의 영향에 관한 연구

        임성진,김한,이재복 대한상하수도학회 2003 상하수도학회지 Vol.17 No.6

        The purpose of this research is to investigate the feasibility of the modified waterworks sludge with loess as cover soil in sanitary landfill site. Modified sludge was experimentally produced with fly ash, cement, loess, and activated loess dosing. Uniaxial compression strength of modified sludges showed material property improvement applicable for soil cover alternatives. Heavy metals were analyzed in terms of leaching characteristics using techniques of Korean Standard Procedure and Toxicity Characteristics Leaching Procedure. Leaching tests for hazardous components in modified sludge revealed below the regulated criteria. When adding 2030% activated loess to water treatment plant sludges, the modified sludges could reach the compression strength for cover soil after 7 days solidification.

      • 지하시설물 정보를 통합한 시각적 도로정보관리시스템 개발

        임인섭,정성혁,이재기 충북대학교 건설기술연구소 2002 建設技術論文集 Vol.21 No.2

        According as social structure becomes more complicate, it is necessary that urban facilities which being made and expand must maintained and managed. Among urban facilities, the road is the core facilities in modern citizen’s life, because almost activities are based on the road. Especially, the facilities of tap-water/sewerage, gas pipe, telecommunication line, electric wire, heating pipe and so on which are essential to urban life are laid below the road. Eventually, in other to maintain and manage the underground facilities, the road information is a fundamental information. Recently, in other to solve the problem caused by sudden increase of the car and the population, the cutting edge technology like intelligent transport system come into use widely. But it is necessary that accurate road information and updated attributes. Consequently, this study is aimed to establish the road information management system which coincidence with following details. The first, by integrating graphical information and a lot of attributes information, it provides accurate data on road construction, repair and plan. The second, by integrating the road information and underground facilities, it prevents disaster in advance. The forth, by using moving image which pictured the test area during driving, it provides the reality with the road management administration.

      • 현대건축의 비움의 특성에 따른 공간구성방법에 관한 연구

        임상도,이재훈 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

        The purpose of this study is to analyze the way of spatial composition through the spatial characteristics of a void in contemporary architecture. For showing the meaning of a void, this study explained the modern and contemporary meaning of it. The spatial feature of a void was divided into a configurational and a locational property, and the plannings and works of the contemporary architects which the concept of a void is applied since the middle of 1990 were analyzed. As the result, some elements which were composed by the spatial property were extracted and the ways that were composed by expanding to an architectural space were proposed. In conclusion, it could be known that a void was a mean to make not an exterior form but an inner & external character, making the link of an indoor space and outdoor space, forming the relation with a functioin through the way of a linear dynamic composition and a facial static composition.

      • CDMA2000 1X용 기지국 UP-CONVERTER 개발

        임재봉,이지성 국민대학교 생산기술연구소 2003 공학기술논문집 Vol.26 No.-

        In this paper, in order to increase the Frequency Allocation (FA) for CDMA-450 base trans ceiver station (BTS) equipment, a TX diversity path, which has 3FAs, has been proposed and developed. The proposed TX diversity path can provide the multi-FA solution to the conventional CDMA-450 base transceiver station system, which has been developed for 1FA service. Issue to be concerned for increasing the FAs is that the distortion and isolation performances should be improved since the increasing the FAs is achieved simply by adding the developed remote module and the HPA to the conventional CDMA-450 base transceiver station system. TX diversity path developed in this dissertation can provide the 3FAs service with output power of 75W by trading off between the noise performance and linearity of the developed diversity path. Furthermore, in order to minimize the required number of the PLL, local frequency source of 385.225MHz has been reused by using the dividing circuit. The proposed method in this dissertation for the increasing the FAs of the conventional CDMA-450 base transceiver station equipments should find applications to the various wireless communication transceiver systems with providing the most cost effective solution.

      • KCI등재

        제약업종 부산물 및 화장품 제조업 폐수처리오니 처리토양에 대한 유기화합물 및 Bioassay 분석 평가

        임동규,이상범,이승환,남재작,나영은,권장식,권순익,소규호 한국환경농학회 2004 한국환경농학회지 Vol.23 No.4

        본 연구는 퇴비원료로 지정된 제약업종 부산물(공정오니) 및 화장품 제조업 폐수처리오니를 퇴비로서 활용 가능성을 판단하기 위하여 기존의 일반성분이나 중금속 성분 분석 이외 유기성 화합물과 기타 여러 생물검정법 등을 활용하여 시용한 오니에 의한 토양 내 비료의 피해를 밝혀내고 이들의 평가방법을 확립하고자 포장시험을 수행하였다. 오니의 처리에 따른 HEM의 함량은 제약업종 오니2(PS2)와 화장품 오니(CS)처리가 각각 0.51, 1.10 mg/kg로 가장 높았고, PAHs의 함량은 제약업종 오니2(PS2) 처리에서 3,406.8 μg/kg로 가장 높았다. 토양에 서식하는 미소동물의 밀도변화는 생육 중기(7월 23일) 및 수확기(10월 1일) 모두 제약오니2 및 돈분 처리구에서 가장 높았으며, 기타 처리구는 차이가 없이 아주 낮았다. 오니의 처리에 따른 세균 및 사상균의 균수는 제약업종 오니2처리에서 각각 736, 909 cfu/g로 가장 많았고, 화장품 오니도 각각 440, 236 cfu/g으로 다른 처리에 비해 많은 경향을 보였다. 제약오니 및 화장품오니 처리시 우점세균은 무비, 돈분처리에 비해 일정한 경향이 없었으나 3요소 처리보다 다양한 세균이 검출되었다. 오니의 처리에 따른 우점사상균은 무처리에 비해 제약업종 오니3와 화장품 오니처리에서 형태적 특징이 다른 콜로니가 검출되었으나 다른 처리는 비슷한 경향으로 종류 간에 큰 차이는 보이지 않았다. Microcosm test를 통하여 오니 처리 후 3개월이 경과한 토양의 오염정도를 평가한 결과는 제약업종 오니3과 화장품 오니처리는 약간 영향을 받아서 80~90% 생존하였으나, 제약업종 오니1처리는 처리 2주(14일) 이후에는 급격히 생존율이 떨어져서 4주 이후에는 10%만 생존하였다. 그러나 6개월이 경과한 토양에서는 지렁이의 생존율은 제약업종 오니1처리만 약간 영향을 받은 것으로 보였으며 다른 처리들은 전혀 영향을 받지 않았던 것으로 조사되었다. 유기성 오니의 퇴비원료로 활용은 비료관리법의 비료공정 규격 중 퇴비의 비고란에 "퇴비의 원료로 사용 가능한 물질과 사용 불가능한 물질'(별표1)에서 "희비의 원료 중 사전 분석검토 후 사용 가능한 원료에 대한 지정요령'에는 유기물과 중금속(8성분) 함량(건물증)과 제조공정 등을 검토하여 지정하고 있으나, 지정된 원료가 과연 회비원료로 적합한지 잘 알 수 없으며 또한 앞으로 현재의 퇴비원료 규정을 변경할 필요가 있을 경우를 대비하여 희비원료의 적합성 여부를 판별할 수 있는 방법의 개발이 필요하다. 따라서 퇴비원료로 이미 지정('02. 12. 31)된 제약오니 및 화장품 오니를 과량으로 토양에 시용한 후 유해 유기화합물, 미소동물, 미생물 및 생물학적(지렁이) 유해성 검정방법의 도입 가능성을 평가하기 위하여 고추를 재배한 포장에서 비료의 피해시험을 실시한 결과 유해 유기화합물과 생물학적(지렁이) 유해성 검정방법은 앞으로 연구를 통해서 보완할 경우 상당히 활용 가능성이 있는 좋은 평가방법인 것으로 생각된다. This study was conducted to assessment organic compound and bioassay (density of inhabited animal, fluctuation of predominant fungi, and survival ratio of earthworm) for finding damage on red pepper by heavily amount application of sludges in soil, which was treated with 3 pharmaceutical byproducts and a cosmetic industry wastewater sludge as raw materials of compost, and for establishing estimation method. HEM contents in the soil treated with pharmaceutical byproducts sludge2 (PS2) and cosmetic sludge (CS) were 0.51, 1.10 mg/kg respectively. PAHs content of PS2 treatment in the soil was 3406.8 ug/kg on July 8. In abundance of soil faunas, the pharmaceutical byproducts sludge2 treatment was the most highest. The next was decreased in the order of pig manure (PM) and the cosmetic sludge treatment. However the other pharmaceutical sludge treatments were remarkably reduced populations of soil inhabited animals. In upland soil treated with organic sludges, the numbers of bacteria and fungi of the pharmaceutical sludge treatment were 736, 909 cfu/g and those of the cosmetic sludge treatment were 440, 236 cfu/g, respectively. The pharmaceutical sludge treatments and the cosmetic sludge treatment in identification of predominant bacteria were not any tendency to compare with non fertilizer and pig manure treatments, but they had diverse bacteria than NPK treatment. In microcosm tests, the survival of the tiger earthworm in five soil samples was hardly affected against the soil of PSI (20%) after three months treated in the upland. But after six months, survival of PSI was 80%. At present, raw material of compost was authorized by contents of organic matter, heavy metal (8 elements), and product processing according to "The specified gist on possible materials of using after analysis and investigation among raw materials of compost", however, for preparing to change regulation of raw material of compost and for considering to possibility of application, this study was conducted to investigate toxic organic compound and bioassay methods using inhabited animal, fungi, and earthworm without current regulation.

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