http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김주완(Joowan Kim),권대현(Dae-Hyeon Gwon),김아영(Ayoung Kim) 제어로봇시스템학회 2017 제어·로봇·시스템학회 논문지 Vol.23 No.1
A saturated region appears in an environment when changing illumination and lighting conditions suddenly. In this paper, we propose an image pre-processing method using an entropy-based metric of an image according to the change of indoor and outdoor illumination conditions. In this method, we show that two images of the same scene having different exposure values can be used to detect an over-exposed region through entropy information and restore a saturated region. The results show that our fused image is simple and practical.
중소기업의 생산정보화시스템(MES) 구축 방안에 관한 연구
김주완(JooWan Kim),이욱기(WookGee Lee),김판수(Pansoo Kim) 한국산업경영시스템학회 2008 한국산업경영시스템학회지 Vol.31 No.1
Manufacturing Execution System (MES) is a system that companies can use to measure and control critical production activities. This paper shows case study of implementation of MES (Manufacturing Execution System) and its methodology in a medium sized production company. This study focused on two important things in MES implementation. First, it provides critical success factors (CSFs) and construction method for success of MES implementation. Second, it presents guidelines for MES implementation in small and medium-size company. Some of the benefits with regards to MES implementation and its results are introduced in the end of this paper.
유수분리를 위한 3D 프린팅 기술 기반의 마이크로하이드로사이클론
김주완 ( Joowan Kim ),김원진 ( Won Jin Kim ),박승 ( Seung Park ),박채리 ( Cherry Park ),유정흠 ( Jung Heum Yoo ),지인서 ( Inseo Ji ),강전웅 ( Jeon-woong Kang ),김태영 ( Taeyung Kim ),홍지우 ( Jiwoo Hong ) 한국화학공학회 2022 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.60 No.2
생활 폐수나 산업 폐수에 포함된 오일이나 해양 유출유 등은 수질오염 및 생태계 파괴 등의 심각한 환경오염 문제를 야기하고 있다. 대표적인 유수분리기술인 필터(또는 멤브레인)를 사용하는 경우에 분리막의 파울링, 낮은 처리용량 등의 기술적 제약이 있다. 본 연구에서는 원심력을 이용하여 유체내의 입자상 물질이나 밀도가 다른 액체-액체 혼합물을 분리하는 장치인 하이드로사이클론의 장점을 활용하며, 동시에 분리 효율을 증대시키 위하여 고해상도의 3D 프린팅 기술을 도입하여 스케일 다운된 마이크로하이드로사이클론을 제작하였다. 본 연구에서 개발한 마이크로하이드로사이클론을 통해 탈이온수와 올리브유로 이루어져 있는 수중유상 에멀젼을 효과적으로 분리할 수 있음을 증명하였다. Oil contained in domestic and industrial wastewater or marine spilled oil gives rise to severe environmental pollution issues such as water pollution and ecosystem destruction. The membrane filtration method as one of representative oil/water separation strategies has technological challenges such as membrane fouling and low separation rate. In this work, we devise a 3D-printed microhydrocyclone for oil/water separation by utilizing a digital lighting processing-based 3D printer. We demonstrate that the 3D-printed microhydrocyclone can effectively separate oil and water phases from oil-in-water emulsion.
권대현,김주완,김문환,박호규,김태영,김아영,Gwon, Dae-Hyeon,Kim, Joowan,Kim, Moon Hwan,Park, Ho Gyu,Kim, Tae Yeong,Kim, Ayoung 한국로봇학회 2017 로봇학회 논문지 Vol.12 No.4
Side scanning sonar (SSS) provides valuable information for robot navigation. However using the side scanning sonar images in the navigation was not fully studied. In this paper, we use range data, and side scanning sonar images from UnderWater Simulator (UWSim) and propose measurement models in a feature based simultaneous localization and mapping (SLAM) framework. The range data is obtained by echosounder and sidescanning sonar images from side scan sonar module for UWSim. For the feature, we used the A-KAZE feature for the SSS image matching and adjusting the relative robot pose by SSS bundle adjustment (BA) with Ceres solver. We use BA for the loop closure constraint of pose-graph SLAM. We used the Incremental Smoothing and Mapping (iSAM) to optimize the graph. The optimized trajectory was compared against the dead reckoning (DR).
이욱기(WookGee Lee),김주완(JooWan Kim),김판수(Pansoo Kim) 한국산업경영시스템학회 2007 한국산업경영시스템학회지 Vol.30 No.4
Motorola developed the framework of six sigma in 1987. In these days, many companies adapt this powerful tool. In 1996, six sigma was introduced to the Korean companies as a management innovation tool. This study shows case study of ‘Champion Project’ which was adopted on one Korean company. The champion project is directed by the leader who has a champion belt. The project focus on the processes optimization problem or resource concentration problem to solve critical issues inside of the process. This case study shows the result of champion project. The effect was encouraging in the aspect of effectiveness and efficiency. The most important point of this study is an introduction of the third generation six sigma which was successively adopted on the Korean company.