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Development of POSCO Application S/W Development Tool
Youngbok Park,JinHwi Lee,JinSeok Yang,kiWoung Park 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10
Whenever a work was revamped, we had replaced whole computer systems and developed all programs newly in spite of not changing functions and equipments. To save cost and time, we have tried to standardize the development process based on product line approach and construct the S/W asset to develop reusable components. We had developed S/W automatic development tool to assist the development and improve the productivity of S.W development. In this results, we could generate about 60% source code automatically and get platform independent application S/W to be reused easily in the next development.
Robust Real-time Detection of Abandoned Objects using a Dual Background Model
( Hyeseung Park ),( Seungchul Park ),( Youngbok Joo ) 한국인터넷정보학회 2020 KSII Transactions on Internet and Information Syst Vol.14 No.2
Detection of abandoned objects for smart video surveillance should be robust and accurate in various situations with low computational costs. This paper presents a new algorithm for abandoned object detection based on the dual background model. Through the template registration of a candidate stationary object and presence authentication methods presented in this paper, we can handle some complex cases such as occlusions, illumination changes, long-term abandonment, and owner’s re-attendance as well as general detection of abandoned objects. The proposed algorithm also analyzes video frames at specific intervals rather than consecutive video frames to reduce the computational overhead. For performance evaluation, we experimented with the algorithm using the well-known PETS2006, ABODA datasets, and our video dataset in a live streaming environment, which shows that the proposed algorithm works well in various situations.
박종필(Jongphil Park),김자륭(Charyung Kim),임종순(Jongsoon Lim),신영복(Youngbok Sin),박용성(Yongsung Park) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
In the automotive industry, hybrid electric vehicles have been developed and released continually to meet emission regulation and fuel-efficiency. Therefore, we need to research GHG emission factor for hybrid electric vehicles to reduce it’s GHG emission. Hybrid electric vehicles use engine and motor multiply. Existing GHG emission test method is unsuitable for development of GHG emission factor for hybrid electric vehicles. Because It has different GHG emissions as the ratio of the engine and motor driven although vehicles use same motor and battery. In this paper, test method would be presented to develop GHG emission factor for hybrid electric vehicles, and we want to take advantage of road sector’s GHG reduction policy formulation and evaluation, etc...
Park, Daehwan,Lee, Jin Yong,Cho, Heui Kyoung,Hong, Woo Jin,Kim, Jisun,Seo, Hyemyung,Choi, Ikjang,Lee, Youngbok,Kim, Juhyeon,Min, Sun-Joon,Yoon, So-Hyun,Hwang, Jae Sung,Cho, Kwang Jin,Kim, Jin Woong American Chemical Society 2018 Biomacromolecules Vol.19 No.7
<P>We herein propose a polymeric nanovehicle system that has the ability to remarkably improve cellular uptake and transdermal delivery. Cell-penetrating peptide-patchy deformable polymeric nanovehicles were fabricated by tailored coassembly of amphiphilic poly(ethylene oxide)-<I>block</I>-poly(ε-caprolactone) (PEO-<I>b</I>-PCL), mannosylerythritol lipid (MEL), and YGRKKRRQRRR-cysteamine (TAT)-linked MEL. Using X-ray diffraction, differential scanning calorimetry, and nuclear magnetic resonance analyses, we revealed that the incorporation of MEL having an asymmetric alkyl chain configuration was responsible for the deformable phase property of the vehicles. We also discovered that the nanovehicles were mutually attracted, exhibiting a gel-like fluid characteristic due to the dipole-dipole interaction between the hydroxyl group of MEL and the methoxy group of PEO-<I>b</I>-PCL. Coassembly of TAT-linked MEL with the deformable nanovehicles significantly enhanced cellular uptake due to macropinocytosis and caveolae-/lipid raft-mediated endocytosis. Furthermore, the <I>in vivo</I> skin penetration test revealed that our TAT-patchy deformable nanovehicles remarkably improved transdermal delivery efficiency.</P> [FIG OMISSION]</BR>
이영복(Youngbok Lee),최왕진(Wang Jin Choi),박태욱(Tae Wook Park),소병삼(Byung Sam So) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
To control the air fuel ratio of internal combustion engine system, Linear Oxygen Sensor is mostly used in these days. Controlling lambda of exhaust gas is the very important to reduce the emission control and enhance the fuel efficiency. In a gasoline internal combustion engine, TWC (Three Way Catalyst) is widely used to reduce the emission. TWC is operated in lambda 1.0 condition. So, oxygen sensor is important to control the lambda for using TWC in internal combustion engine. However, poisoning worsen the sensor performance. The goal of this paper is to evaluate the effects of the siloxane vapor on the linear oxygen sensor. To achieve the goal, selecting the variables those are main factors to worse the sensor performance. Using these factor, separated variable experiment is carried out. The result of this study is that the most dominant factor to worse the sensor performance is the cycle number of measuring the sensor performance. Increasing the number of measuring the sensor performance causes the decreasing the sensor performance.
유영복(Youngbok You),최계연(Kyeyoun Choi),박보야나(Boyana Park),정의섭(Euiseob Jeong) 한국콘텐츠학회 2013 한국콘텐츠학회논문지 Vol.13 No.4
과학기술의 발전 분야의 발전 동향을 신속히 파악하기 위해 기술로드맵을 효율적으로 작성할 필요성이 제기되었다. 이를 위해 논문이나 특허를 이용한 계량정보적 접근이 많이 시도되고 있다. 하지만 의류학에서 이러한 계량정보분석은 거의 이루어지지 않고 있다. 따라서 본 연구는 스마트 의류에 대한 특허정보를 이용한 실증적 정보분석을 통해 스마트 의류의 최근 기술동향 및 향후 기술개발방향을 살펴보았다. 또한 기존의 기술동향 지수와 특허 패밀리로 표시되는 시장확보 지수를 활용하여 국가별, 핵심 분야별 기술개발력과 시장확보력에 대한 분석을 시도하였다. 분석 결과, 스마트 의류의 전체적인 기술개발은 2000년 이후 지속적으로 증가 추세를 나타냈으며, 포트폴리오 분석 결과, 매년 특허건수와 출원인 수가 지속적으로 증가하고 있는 것으로 파악되어 스마트 의류 관련 기술은 현재 발전단계에 있는 것으로 분석되었다. 또한 특허점유율과 시장확보지수를 비교한 결과 전자/정보통신 기술분야가 가장 높게 나타나 상대적으로 선기술 확보 경쟁과 시장 확대 경쟁이 큰 분야로 판단된다. 본 연구에서 제시한 시장확보 지수를 포함한 기술의 경제적 가치 분석 방법은 핵심 기술의 현 위치와 향후 발전 방향을 파악하기 위한 프로세스에 활용될 수 있을 것으로 판단된다. Advancement of science technology, combined with other technologies including smart clothing, enables value added product developments and market creation. Accordingly, it became necessary to identify technology trends promptly and to prepare future technology road map. For this purpose, many bibliometric analysis using thesis and patents have been made. However, few such attempts are made in clothing study. Thus, the study examined the latest technology trends and future technology development directions of smart clothing from empirical bibliometric analysis based on smart clothing patent documents. In addition, comparative analysis was made about the market leadership and technology development capability of core sectors by countries utilizing market reach index expressed as patent families and technology development index. The study revealed that overall smart clothing technology development trends has been continuously increasing since 2000. Also the results confirmed that it is in the development stage from the fact that each year the number of patents and patent applicants in portfolio analysis also has been increasing. In addition, comparative results of patent market share and market reach index, with the highest in electronics/ICT technology sectors, indicated that this is the technology sector with competitive acquisition of comparatively advanced technology and market expansion. The analysis methodology of economic value of technology including the presented market reach index in this report is expected to be utilized in the process to identify the current positioning of core technology and future development direction.
감지 타입에 따른 FCEV용 수소센서의 감지성능 비교 평가
이영복(Youngbok Lee),이대건(Daegun Lee),박태욱(Taewook Park),심광택(Kwangtaek Shim),윤병규(ByoungGyu Yoon) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
In the Fuel cell electric vehicle, hydrogen sensors are mandatory to prevent the accident which is caused by hydrogen leakage. It is important for hydrogen sensors to exactly and promptly detect the hydrogen leakage of the FCEV. Thermal conductivity hydrogen sensors and catalytic combustion hydrogen sensors are widely used in automobiles like FCEV and in an industrial field. The goal of this study is to evaluate the sensing performance between a thermal conductivity hydrogen sensor and a catalytic combustion hydrogen sensor. To achieve the goal, sensing performance of those sensors is evaluated in various ambient temperature and hydrogen concentration. The result of this study was that the sensing performance of thermal conductivity hydrogen sensor is reliable in every case. But the sensing performance of catalytic combustion hydrogen sensors is decreased in low temperature conditions.
Soot Particle이 공기유량센서에 미치는 영향성 평가
이영복(Youngbok Lee),최왕진(Wang Jin Choi),전명건(Myounggun Jeon),박태욱(Tae Wook Park),우성종(Sung Jong Woo),오광철(Kwang Chul Oh) 한국자동차공학회 2018 한국자동차공학회 부문종합 학술대회 Vol.2018 No.6
To control the air fuel ratio of internal combustion engine system, HFM (Hot Film Air Mass Flowmeter) is mostly used. It is very important to control AF ratio for emission control and fuel efficiency. However, soot particle in the intake air by the diesel vehicles which is old or not to equip DPF system will cause the problem to HFM. The goal of this paper is to evaluate the effects of the soot particle in the intake air on HFM (Hot Film Air Mass Flowmeter). To achieve the goal, 2.0L diesel engine was used to generate the soot and exhaust gas which was surrogate intake air including the soot particle for evaluating the effects of the soot particle on the HFM. The result of this work is that the circular shape of grid which was the part of HFM’s entrance increases the efficiency of flow rate and soot particles, but increasing soot deposit in the sensor element in HFM causes the decreasing the performance of the HFM.