http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이강원,신예진,송하민,박진오,설순욱,Lee, Kangwon,Shin, Yejin,Song, Hamin,Park, Jinoh,Seol, Soonuk 한국정보통신학회 2016 한국정보통신학회논문지 Vol.20 No.3
본 논문에서는 NFC 통신기술 기반의 스마트밴드를 이용하여 스포츠 센터의 운동기구를 예약하여 사용할 수 있도록 하는 운동기구 예약 시스템을 설계하고 구현한다. 사용자는 스마트밴드를 통하여 언제 어떤 운동 기구를 사용해야 하는지 알림 정보를 수신할 수 있다. 사용자는 추천 운동 프로그램을 활용하여 운동을 할 수 있고, 피크 시간에도 대기인원이 없기 때문에 편하게 원하는 운동기구를 사용할 수 있다. 또한, 관리자는 효율적인 시설관리를 통해 비용을 절감할 수 있고 수집된 운동 정보를 통해 사용자에게 맞춤 정보를 제공함으로써 경쟁력 있는 센터 운영이 가능하다. Many people feel uncomfortable when fitness center is crowded with people in all at the same time. So we propose exercise machines reservation system for resolving the problem that people feel uncomfortable in fitness center. In this paper, we design and implement the exercise machines reservation system that allows for users to reserve fitness equipments by using a NFC-based smart band. A user can reserve exercise machine using some reservation device. he or she will receive notifications through the smart band about when and which machine she or he will have to use. The user can do exercise with a recommended program, and can use any equipments conveniently even in a peak time because no one is waiting. Also, a manager can save cost through the efficient facility management and provide customized member management. Additionally, manager don't need to purchase other exercise machines or computers.
이강원,문희수,송윤구,김인준,Lee, Kangwon,Moon, Hi-Soo,Song, Yungoo,Kim, In Joon 대한자원환경지질학회 1993 자원환경지질 Vol.26 No.3
Milyang pyrophyllite deposit which was formed by hydrothermal alteration occurs in Late Cretaceous andesitic tuff in the Milyang area, Gyeongsangnamdo. The wall rock alteration and genesis of the Milyang pyrophyllite deposit were studied. The ore minerals are composed dominantly of pyrophyllite accompanied by small amounts of quartz, kaolinite, pyrite, dumortierite and diaspore. The alteration halo of this deposit can be divided into three zones on the basis of mineral assemblage; pyrophyllite, sericite and chlorite zone. The common mineral assemblages of each alteration zone are as follows: (1) pyrophyllite zone; pyrophyllite-quartz-kaolinite-pyrite-dumortierite-diaspore, (2) sericite zone; sericite-quartz-pyrite-kaolinite, and (3) chlorite zone; chlorite-plagioclase-quartz. Major element chemistry shows that characteristic depletion in MgO, CaO, and $Na_2O$ and relative increase in FeO from less altered chlorite zone to extensively altered pyrophyllite zone corresponding to variation in mineral assemblages. The paragenesis of ore minerals, oxygen isotope data, chlorite and illite geothermometry suggest that ore deposit was formed at about $250{\sim}330^{\circ}C$. Both hydrogen and silica activities are high in pyrophyllite zone. Potassium activity increases in sericite zone while hydrogen activity becomes low in chlorite zone. The pyrophyllite zone was formed relatively higher temperature than those of sericite and chlorite zones. The ore fluid was considered to be magmatic water in origin derived from the residual granitic magma which interacted with meteoric water.
탄소나노튜브 필름을 이용한 투명 압저항체의 제작 및 특성 연구
이강원(Kangwon Lee),이정아(Jung A Lee),이광철(Kwang-Cheol Lee),이승섭(Seung Seob Lee) 대한기계학회 2010 大韓機械學會論文集A Vol.34 No.12
본 논문에서는 탄소나노튜브 필름을 이용한 투명 압저항체의 제작 및 특성 연구를 수행하였다. 진공필터 방식으로 제작된 다양한 투과도를 가지는 탄소나노튜브 필름은 금층이 증착된 실리콘 기판위에서 사진식각 공정을 통해 패터닝이 된 후, 금층과 실리콘 기판의 약한 접착력으로 인해 실리콘 러버인 poly-dimethysiloxane (PDMS) 로 전사된다. 탄소나노튜브 필름의 압저항 특성을 분석하기 위해, 얇은 PDMS 멤브레인의 처짐에 대한 탄소나노튜브 필름의 저항 변화를 측정하여 10?20 의 개이지 팩터를 얻었으며, 인가 압력에 대한 저항 변화 실험을 수행하였다. 본 실험을 통하여 탄소나노튜브 필름은 폴리머 멤스의 다양한 응용분야에 투명한 압저항체로 사용될 수 있을 것으로 판단한다. We present the fabrication and characterization of transparent carbon nanotube film (CNF) piezoresistors. CNFs were fabricated by vacuum filtration methods with 65?92% transmittance and patterned on Au-deposited silicon wafer by photolithography and dry etching. The patterned CNFs were transferred onto poly-dimethysiloxane (PDMS) using the weak adhesion property between the silicon wafer and the Au layer. The transferred CNFs were confirmed to be piezoresistors using the equation of concentrated-force-derived resistance change. The gauge factor of the CNFs was measured to range from 10 to 20 as the resistance of the CNFs increased with applied pressure. In polymer microelectromechanical systems, CNF piezoresistors are the promising materials because of their high sensitivity and low-temperature process.
이강원(Kangwon Lee),설순욱(Soonuk Seol),강승찬(Seung-Chan Kang) 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.7
자원이 제약적인 사물인터넷의 많은 응용에서는 CoAP을 활용하여 HTTP 기반의 웹과 연동하여 서비스를 제공하고 있다. 많은 응용에 CoAP을 활용하고 있으나 서비스 시나리오 별로 서버와 클라이언트 구조 상에서 나타날 수 있는 문제점을 제시하거나 적절한 활용 방법에 관한 연구가 부족하다. 사물인터넷에서 센서 노드는 자원을 가지고 있는 노드이기 때문에 CoAP 서버로 동작하는데 많은 서버 노드들 혹은 게이트웨이가 인터넷 망을 통해 외부의 많은 클라이언트들과 연동하는데 어려움이 있을 수 있다. 특히, 네트워크의 확장성 확보와 실시간 제어 서비스에 적합한 CoAP 적용 구조에 대한 연구가 부족하다. 본 논문에서는 CoAP을 적용할 수 있는 4가지 방법을 제시하고 원격 제어 서비스에 적합한 접근 방법에 대해 논의한다. 구현과 실험을 통하여, 제안하는 CoAP 적용 방안을 실제원격제어 플랫폼에 적용하고 기존의 원격제어 방법과 응답시간과 오버헤드 측면으로 비교하여 사물인터넷에서의 실시간 제어에 적용 가능한지 확인한다. In many applications of resource-constrained Internet of Things, CoAP is used to provide service by interworking with HTTP based web. Although CoAP has been used in many of the applications, there is a lack of research on the problems that may arise in client and server architecture of various service scenarios or research on the proper application method. Because a sensor node in IoT operates as a CoAP server, many server nodes or gateways may have trouble interworking with many external clients over the Internet. Particularly, there is a lack of research on suitable CoAP architecture for real-time control service and for providing scalability of the network. In this paper, we provide four methods of applying CoAP and discuss the best approach for remote control service. Through an implementation and experiment, we apply the proposed CoAP architecture to our remote control platform, compare the proposed method with the existing remote control method in terms of response time and overhead, and show whether it is applicable or not to real-time control service in the Internet of Things.
북미 Tier2 Bin5 규제 대응을 위한 디젤 SCR 개발
이강원(Kangwon Lee),강중훈(Jungwhun Kang),조청훈(Chung Hoon Jo) 한국자동차공학회 2011 한국 자동차공학회논문집 Vol.19 No.2
The introduction of a diesel engine into the passenger car and light duty applications in the United States involves significant technical challenges for the automotive makers. This paper describes the SCR System optimization procedure for such a diesel engine application to meet Tier2 Bin5 emission regulation. A urea SCR system, a representative NO<SUB>x</SUB> reduction after-treatment technique, is applied to a 3.0 liter diesel engine. To achieve the maximum NO<SUB>x</SUB> reduction performance, the exhaust system layout was optimized using series of the computational fluid dynamics and the urea distribution uniformity test. Furthermore a comprehensive simulation model for the key factors influencing NO<SUB>x</SUB> reduction performance was developed and embedded in the Simulink/Matlab environment. This model was then applied to the urea SCR system and played a key role to shorten the time needed for SCR control parameter calibration. The potential of a urea SCR system for reducing diesel NO<SUB>x</SUB> emission is shown for FTP75 and US06 emission standard test cycle.
차량의 동적 성능 향상을 위한 Active Roll Control Stabilizer Bar와 Continuous Damping Control의 통합 제어에 대한 연구 Part Ⅱ
이강원(Kangwon Lee),이종일(Jongil Lee),김영우(Youngwoo Kim),오승규(Seungkyu Oh),노지훈(Jihoon Roh),정명철(Myoungchul Jung),김인동(Indong Kim),장진희(Jinhee Jnag) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
Generally, the vehicle dynamics performance is influenced each chassis subsystem with some trade-off relations. One of the systems is a suspension system that related vehicle ride and handling performance. Especially the roll stiffness tendency of a vehicle can be significantly changed, if the suspension component is actively controlled. This study is presented the Active Roll Control Stabilizer Bar System (ARC) for improving of the vehicle roll motion and vehicle dynamic performance by control of roll stiffness distribution. This paper describes a fundamental understanding of the theory and application of the ARC system analysis. Based on the study on ARC, we can make a proposal on the integrated control system using Continuous Damping Control (CDC) and Active Roll Control stabilizer bar (ARC). This research arranges and defines the ARC functionality and performance limits, then shows how to improve such a limit using by CDC (Continuous Damping Control) on the vehicle performance with ARC system. Finally, this paper proposes the vehicle dynamics performance integration control strategy and show the synergy effect through the integrated control vehicle simulation.