http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
여세동(Se Dong Yeo),임병주(Byung Ju Lim),유상석(Sang Seok Yu),정경열(Kyung Yul Chung),박창대(Chang Dae Park) 대한기계학회 2017 大韓機械學會論文集B Vol.41 No.8
태양열 및 발전기의 배기가스 폐열을 복합열원으로 이용하여 작동되는 하이브리드 태양열 해수담수기의 성능을 증가시키기 위한 실험을 수행하였다. 실험 장비는 집열 면적이 1 m×2 m인 단순 태양열 증류기와 수직 다중효용부로 구성되어 있다. 실험은 두 대의 동일한 하이브리드 태양열 해수담수기에 대하여 태양열을 열원으로 실외에서 다양한 운전 조건으로 수행하였다. 실험 결과 하이브리드 태양열 해수담수기의 담수 생산량은 다양한 운전 조건에 의존하였다. 태양열 증류기의 측면 유리에 단열을 하는 것과 낮은 초기 베이진 해수 수위는 태양열 해수담수기의 성능을 증가시켰다. 반사율이 평균 47%보다 낮은 반사휜의 적용은 예상과 다르게 총 생산량을 감소시켰다. 그러나 다중효용부로 공급하는 해수공급 유량은 실험 범위 내에서 생산량에 명확한 영향을 보이지 않았다. In this study, we have performed tests to improve the productivity of hybrid solar stills, which can be operated by solar thermal energy and/or waste heat of exhaust gas from electrical generators. The experimental apparatus is a hybrid solar still with a 1 m×2 m collecting area, which consists of a conventional simple solar still and a vertical multi-effect diffusion(MED) section. The experiments were conducted under various operating conditions, with two identical hybrid solar stills, using solar radiation as the energy source. The results of the tests showed that the yield of the hybrid solar still depends on the various operating conditions. Insulation at the side glasses and a lower basin seawater level increased the productivity of the hybrid solar still. Reflecting fins with less than 47% reflectivity unexpectedly decreased the total productivity. However, the various feeding flow rate of the seawater into MED part did not show clear effects on productivity in the tested range.
배전선 활선감시 무인로봇용 다채널 모터 엔코더 모듈 개발
정경열(Kyung-Yul Chung),채정훈(Jeong-Hoon Chae),최대석(Dae-Seok Choi),김상열(Sang-Yeol Kim) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
This paper describes development results of the multichannel motor encoder module for power cable diagnosis using hight density field programmable gate arrays. (FPGA). Unmanned robot is composed of various different motor which is done by PWM(Pulse Width Modulation). In this proposed system, investigates the design and implementation of the FPGA chip for the speed control of an DC motor using VHDL which is a standard hardware description language.
정경열(Kyung-Yul Chung),김병덕(Byung-Duk Kim),류석현(Suk-Hyun Ryu),오상훈(Sang-Hoon Oh) 한국마린엔지니어링학회 2004 한국마린엔지니어링학회 학술대회 논문집 Vol.2004 No.-
This paper was written to develop diagnosis technique and a data acquisition method of an AOV actuator performance for a purpose to solve a problem of AOVs and accessories in the domestic power plants. as a result, we confirmed that an AOV actuator was correctly designed and executed, and performed calibration of an AOV actuator with signature analysis.
정경열(Kyung-Yul Chung),전우석(Woo-Seok Jeon),최대석(Dae-Seok Choi) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
In this paper, we design multi thread model for the PCB laser marking machine. Thread creation isn't cheap and creating too many threads can cause overhead. The thread pool solves that by having a pool of threads which have already been created.
지중배전 열화진단을 위한 무선센서 네트워크에 관한 연구
정경열(Kyung-Yul Chung),이후락(Hoo-Rock Lee),최대석(Dae-Seok Choi),김용식(Yong-Sik Kim),이수태(Soo-Tae Lee),류길수(Keel-Soo Rhyu) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
In this paper, method of a simple wireless sensor network for detecting and locating faults as well as for underground cable monitoring are presented. The main novelty of the concept is in source based routing network characteristics on system level with low power hardware. This method enables the underground electrical distribution system monitoring to be simple.
전력기기 집중감시용 고출력 무선센서네트워크 중계노드 개발에 과한 연구
정경열(Kyung-Yul Chung),이후락(Hoo-Rock Lee),장경선(Kyoung-Son Jhang),류길수(Keel-Soo Rhyu) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
In condition surveillance system for electric power equipments, applications based on wireless sensor are necessary to maintain the systems efficiently. Therefore, we need suitable wireless sensor network topology for the electric power equipment surveillance system. We assume that bridge node has enough power resources. In this paper, we present wireless sensor network bridge node for fixed cluster heads environment.
PV모듈에서 태양전지의 출력 불균일에 따른 직병렬 회로의 손실특성 분석
정경열(Kyung-Yul Chung),이진섭(Jin-Seob Lee),김용식(Yong-Sik Kim),이후락(Hoo-Rock Lee) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
The current and voltage of photovoJtaic module are determined according to serial-parallel circuit designs. The environmental, electrical and physical sources give effects on current-voltage mismatches of PV module and array. They also bring power loss and short-term durability. PV system could generate more power if we consider the mismatch of the system. In this paper, the electric characteristics and thermal phenomenon are deeply examined by counting current mismatch in serial circuit. On the other hand, parallel circuit is also examined for the electric and thermal characteristics due to voltage difference of the system.
센서네트워크에서의 클러스터헤드 기반 라우팅 확정 알고리즘에 관한 연구
정경열(Kyung-Yul Chung),이후락(Hoo-Rock Lee),오진규(Jin-Gyw Oh),최대석(Dae-Seok Choi),김용식(Yong-Sik Kim),이수태(Soo-Tae Lee),류길수(Keel-Soo Rhyu) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
In condition monitoring system for underground electrical distribution networks, applications based on wireless sensor are necessary to maintain the systems efficiently. Therefore, we need suitable routing determination algorithm and it's topology of wireless sensor networks. We assume that end nodes have tiny-power resources but cluster heads are not restricted power condition. In this paper, we present a simple routing determination algorithm for cluster topology and compare our algorithm, based on a cluster heads beacon mechanism, with previous by a discrete-event simulator.
정경열(Kyung-Yul Chung),이후락(Hoo-Rock Lee),최대석(Dae-Seok Choi),하희천(Hee-Cheon Ha) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
The following instructions give you basic guidelines for preparing camera-ready papers for the Journal of the KOSME. We recommend you to use the HWP word processor.