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4륜구동 접이식 초소형 전기자동차 개발을 위한 In-wheel 모터 제어 시험장치 개발과 해석
정광우(Kwangwoo Jeong),이기범(Kibeom Lee),이민영(Minyoung Lee),서인수(In-Soo Suh) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
As air pollution problem and scarcity of natural resources have been a big issue throughout the world, electric vehicle became alternative to the combustion engine driven vehicles. While lots of research and development are performed on electric vehicles, including charging infrastructure test bed launches, the micro-size electric vehicle is recently considered as a new urban transportation mode. In addition, a foldable body concept applied to the micro electric vehicles can be considered as an innovative design in automotive industry. With the foldable body powered by electric motors, the in-wheel electric motor design can provide huge benefit in design of the vehicle. In this paper, a motor performance test rig has been built with the in-wheel motor assembly in a wheel. The main objective of the test rig is to verify the motor control algorithm and design with a single set of the in-wheel motor assembly. The test rig system is composed of a surface mounted permanent magnet synchronous motor installed in a wheel, a load motor drive system, DC power supply battery system, and a motor controller. The dynamic model for the drive and load motor has been established in order to obtain the dynamic response characteristic of the test rig system.
HVAC System Power Consumption and Temperature Control Algorithm For OLEV<SUP>®</SUP> Application
Sang Hoon Chung(정상훈),Eun-Gyeong Shin(신은경),Jun-Ho Lee(이준호),In-Soo Suh(서인수) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In recent years, electrical vehicles (EVs) have been in the limelight as one of the green technologies that could be the key solution to global energy depletion and green house effects. In order to overcome the most common issues when it comes to EV introduction, mostly related to batteries, KAIST introduced the new concept of electric charging technology-applied vehicle, called OLEV<SUP>®</SUP> (On-Line Electric Vehicle). The key of this technology is that it enables EV to be charged whether it is in motion or at a stop by utilizing the inductive power transmission principal. In this paper, control algorithm of HVAC system for OLEV<SUP>®</SUP> is introduced. The main purpose of this algorithm is to control the amount of power consumed by HVAC system down to 20% and 25% of the suppliable power in case of cooling and heating respectively while maintaining the desired room temperature. This particular power management is necessary because the capability of meeting the customers’ expectations on driving distance and still have other functions work as conventional cars do with the minimum amount of charging time is the key to successful EV introduction We developed a proper set of dynamic models and control algorithms for HVAC (Heating Ventilation Air-Conditioning) system linked to gether with OLEV<SUP>®</SUP> system operation. Based on the operation conditions of OLEV<SUP>®</SUP>, the advanced control algorithm is applied considering several key parameters such as power being supplied from the road, battery SOC (state of charge), power consumptions from each component of OLEV<SUP>®</SUP> and room temperature. This control algorithm aims for HVAC system to maintain the driver’s desired room temperature while consuming only 20% and 25% of the suppliable power for cooling and heating respectively.
온라인 전기 자동차 급전 도로 구축 최적화 프로그램 개발
양기선(Kiseon Yang),정상훈(Sang Hoon Chung),서인수(In-Soo Suh) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In recent years, there have been increased interests and demands on electrical vehicles (EVs) as one of the green technologies. In order to overcome the critical issues of the batteries on EV introduction, KAIST introduced the new concept of electric charging method, called OLEV<SUP>®</SUP> (On-Line Electric Vehicle). OLEV<SUP>®</SUP> technology utilizes the inductive power transfer principle, so that the EV equipped with pick-up devices can be charged while the vehicle is in motion or stationary. The charging of OLEV<SUP>®</SUP> in motion requires the powered road constructed beneath the surface of the paved road. In order to optimize the location of powered track, which affects the energy balance, it is necessary to calculate and optimize the power requirement, energy consumption and change of the battery SOC level In this paper the brief explanation of the program is introduced. This program shows the algorithm to come up the most optimized powered track installation in view of the averaged electric energy requirement and instantaneous required power for a normal vehicle operation, considering the practical road application. With the results, the proper and optimized design of vehicle electric powertrain and on-road power supply infrastructure can be achieved, which is crucially important in applying the wireless power transmission technology to future urban transportation as an eco-friendly transportation strategy.
Plastic Intake Manifold 개발 과정 상의 NVH 특성 시험 및 평가
이수열(Soo-Yeol Lee),송재은(Jae-Eun Song),서인수(In-Soo Suh) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
Recently, intake manifold has been changed from aluminum casting to plastic molding, which is a successful example of weight reduction keeping about the same cost and engine performance for modern passenger car engines.<br/> In view of noise and vibration of an engine, however, the lower stiffness plastic manifold can naturally cause higher vibration and noise level. In this study, the NVH development process for newly designed plastic intake manifold is introduced. The test results are compared with the aluminum manifold in terms of vibration and noise level, and their characteristics. By optimizing the thickness and adding appropriate brackets, we achieved the comparable level of radiated noise level from the engine.<br/>
수기 액상세포검사를 이용한 자궁목 세포진 검사의 임상적 효용성: 고식적 세포진 검사와의 비교
박종명,이종기,서인수,Park, Jong-Myoung,Lee, Jong-Gi,Suh, In-Soo 대한세포병리학회 2005 대한세포병리학회지 Vol.16 No.1
This study was performed to compare manual liquid-based preparation with conventional Papanicolaou tests in view of the cytologic diagnoses and specimen adequacy. The specimens of 5,979 women from 33 local clinics and 1 general hospital were prepared by both manual liquid-based preparation and conventional Papanicolaou test. The cytologic diagnoses and specimen adequacy were evaluated in Department of Fathology in Kyoungpook National University School of Medicine. A conventional Papanicolaou test was always prepared first, after that residual material on the sampling device was rinsed into a liquid preservative, and then thin-layer slides were prepared using manual method of liquid-based cervicovaginal cytology. Conventional and liquid-based slides were read independently, and cytologic diagnoses and specimen adequacy were classified using the Bethesda System. Of the cases, 5,763 (96.3%,) had the same interpretation, and there was no significant diagnostic difference in 5,853 (97.8%) cases. When evaluating cases with more than one diagnostic class difference, the manual liquid-based preparation demonstrated a statistically significant overall improvement (2.1%) in the detection of squamous intraepithelial lesion and invasive cancer. Using manual method of liquid-based preparation, there was 14.1%, reduction in unsatisfactory slides through excellent cellular presentation. In conclusion, the manual liquid-based preparation produces standardized quality, superior sensitivity and improved adequacy as compared to the conventional method.
자궁경부 액상세포검사의 수기 검사법에 대한 고찰 - $SurePath^{TM}$ 검사법을 준용한 수기 검사법으로 -
박종명,장진욱,임소여,서인수,이종기,Park, Jong-Myoung,Jang, Jin-Wook,Lim, So-Yeo,Suh, In-Soo,Lee, Jong-Gi 대한세포병리학회 2004 대한세포병리학회지 Vol.15 No.2
Liquid-Based Uterine Cervicovaginal Cytology is known to be a sensitive and effective screening method for cervical neoplasm $MonoPrep^{TM},\;ThinPrep^{TM},\;and\;SurePath^{TM}$ methods have been recently used as Liquid-Based Uterine Cervicovaginal Cytology techniques, and the $SurePath^{TM}$ method has been used in Sung-Yoon Reference Laboratory since 2003. The goal of Liquid-Based Uterine Cervicovaginal Cytology is to separate cervical epithelial cells from non-target cells, red blood cells and neutrophils. This report describes a study which evaluated cellularity, stainablilty, and cellular changes of epithelial cels in samples processed using a manual technique as compared to samples processed using $SurePath^{TM}$ automated method. The samples processed by means of a manual technique contained a cellularity of epithelial cells similar to that of the samples processed using the $SurePath^{TM}$ automated method. In addition, we compared variable density gradient reagents, including dextran, dextrose, and sucrose, to $SurePath^{TM}$ gradient media in order to evaluate cell fractionation and cellularity of epithelial cells. 10% dextran of gradient media shows good fractionation. The samples processed with 10% dextran demonstrated sufficient cellularity of epithelial cells and shows the fewest cellular changes. In conclusion, using a manual technique on these samples is easier to read than those results obtained using the $SurePath^{TM}$ automated method.
강릉 남대천 하구역의 1997년 9월중 대형저서동물의 분포패턴
홍재상 ( Jae Sang Hong ),서인수 ( In Soo Seo ),윤건탁 ( Kon Tak Yoon ),황인서 ( In Suh Hwang ),김창수 ( Chang Soo Kim ) 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.2
We examined estuarine macrobenthos in Namdaecheon estuary, Gangneung, Korea, September 22, 1997. A total of 56 species were found together with an abundance of 378 individuals m^(-2) and a biomass of 20.79 gWWt m^(-2). The major dominant species were unidentified oligochaete followed by different species of polychaetes Hediste japonica, Rhynchospio glutaea, Poecilochaetus trilobatus, Scoloplos armiger, Spiophanes bombyx and a talitrid amphipod Platorchestia crassicornis. The study area was divided into two different groups of stations and species, based on the q-mode and r-mode clustering analysis. In case of q-mode, there are two groups: one is a marine station group and the other is estuarine group. The r-mode clustering analysis showed the two main communities as follows; 1) Marine species group occurred only at station 7, 8 and 9 and 2) Estuarine species group composed of the species present at station 1 to 6 and 10 to 15. In the number of species, the estuarine station group includes 13 species, whereas 43 species were presented in the marine station group. Total macrofaunal abundance and total biomass were higher in the marine station group than those in the estuarine group. The species diversity index was also high in the marine group (>2), whereas it was less than ca. 1 in the estuarine group.