http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
생물화공, 에너지/환경 : 펠렛형 제올라이트를 이용한 이산화황의 흡착특성
이재희 ( Jae Hee Lee ),김정국 ( Jeong Guk Kim ),양희철 ( Hee Chul Yang ),김준형 ( Joon Hyung Kim ),이제근 ( Jea Keun Lee ) 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.1
The experimental of SO_2 adsorption, with varying SO_2 concentration, packed-bed depth, and space velocity, was carried out using a lab-scale fixed bed with zeolites, such as KA, NaA, CaA and NaX. Both of an equilibrium adsorption capacity and a breakthrough time increased with zeolite pore size, in order of KA, NaA, CaA and NaX. Breakthrough time of NaX increased under SO_2 concentration of 504 ppm, but mass transfer rate decreased due to expansion of mass transfer zone. Breakthrough time is relatively increased in the low gas concentration(<504 ppm) more than high concentration(>504 ppm), which is proved by the effects of equilibrium adsorption capacity, space velocity and l/C_0 for the zeolite from the relationship of Wheeler equation.
고온 배가스 처리용 Lanthanoid계 Perovskite 형 촉매상에서 CO에 의한 NO<sub>x</sub>의 환원
이제근,이재희,임준혁,Lee, Jea-Keun,Lee, Jae-Hee,Lim, Jun-Heok 대한환경공학회 2000 대한환경공학회지 Vol.22 No.1
알루미나 상에 페롭스카이트 산화물 촉매를 구연산 용액에서 제조하였다. 고온 배가스 처리에 페롭스카이트 촉매의 적용가능성을 평가하기 위해 충진 촉매 반응기내에서 조업온도와 $CO/NO_x$ 몰비를 변화시키면서 CO에 의한 $NO_x$의 환원특성을 실험하였다. 본 연구에서 제조한 촉매를 분석한 결과 알루미나 상에 $La_{0.5}Sr_{0.5}CoO_3$, $SrAl_{12}O_{19}$, $LaAl_{11}O_{18}$의 복합산화물이 균일하게 분포되어 있음을 확인하였다. $CO/NO_x$ 몰비가 1보다 높은 조건에서 $NO_x$의 전환율은 온도가 높아짐에 따라 $700^{\circ}C$ 근방까지는 급격히 증가하였고, 그 이상에서는 100%에 근접하였다. 또한 조업온도 $800^{\circ}C$, 공간속도 $10700hr^{-1}$에서 23시간 연속조업한 결과 $NO_x$의 전환율은 98% 이상으로 유지됨을 확인할 수 있었다. Perovskite oxide catalysts doped on porous alumina beads are prepared in a citric acid solution. To investigate the applicability of the catalysts to the hot gas cleanup, a series of experiments on the reduction characteristics of $NO_x$ by CO as a reducing agent are carried out in a packed bed reactor containing the catalysts. Parameters tested are the operating temperature and $CO/NO_x$ molar ratio. It is found that mixed complex oxides of $La_{0.5}Sr_{0.5}CoO_3$, $SrAl_{12}O_{19}$ and $LaAl_{11}O_{18}$ are uniformly distributed on the alumina beads. The conversion efficiency of $NO_x$ by CO sharply increases with the operating temperature up to $700^{\circ}C$ and then approaches 100% when $CO/NO_x$ molar ratio is greater than 1.0. The conversion efficiency of $NO_x$ is maintained by over 98% during a continuous operation for 23 hours at $800^{\circ}C$ and space velocity of $10700hr^{-1}$.
휴대용 Http 라이브 스트리밍 전송기 구현에 관한 연구
조태경(Tae-Kyung Cho),이재희(Jea-Hee Lee) 대한전기학회 2014 전기학회논문지 P Vol.63 No.3
In this Paper, We proposed the HLS(Http Live Streaming) transmitter which is operated easily and cheap in all networks and client environments compared to the exist video live streaming transmitter. We analyzed the HLS protocol and then implemented for making the HLS transmitter cheaper and portable. After designing the HLS transmitter hardware using the RISC processor of Arm11 core, we ported the Linux Operating System and implemented the HLS protocol using the open source FFmpeg and Segmenter. For the performance evaluation of the developed HLS transmitter, we made the testing environment which is including the notebook, iPhone, and aroid Phone. In this testing environment, we analysed the received video data at the client displayer. As a results of the performance evaluation, we could certify that the proposed HLS transmitter has a higher performance than the Apple company"s HLS.
실시간 HD급 동영상의 멀티캐스트 전송에서 영상품질의 왜곡평가에 관한 연구
조태경(Tae-Kyung Cho),이재희(Jea-Hee Lee),이상하(Sang-Ha Lee) 대한전기학회 2011 전기학회논문지 P Vol.60 No.3
In this paper, for analysing the major factors giving the effect to the quality of HD level video on the multicasting service, we tried this test experiment on the College school network similar to the real service network environment. We measure the video quality distortion on the multicasting HD level video according to generating and increasing the broadcasting traffic on the situation that apply the QoS technique to the test network and not apply the QoS technique and then find out the threshold value of network factors giving the effect to the video quality distortion on the multicasting HD level video service. This paper can be used for guaranteeing the constant video quality and reducing the video quality distortion on the multicasting HD level video service.
모바일 에드혹 네트워크의 OLSR(Optimized Link State Routing Protocol) 구현에 관한 연구
조태경(Tae-Kyung Cho),이재희(Jea-Hee Lee) 대한전기학회 2011 전기학회논문지 P Vol.60 No.4
In this paper, we research the OLSR(Optimized Link State Routing Protocol) of the mobile ad-hoc network protocols, and design the system implementation based on the Embedded Linux for the Ubiquitous Space construction. We prove the performance of proposed system in the various experiment environments through several scenarios which is about transmitting the image data on the mobile ad-hoc network environment
박승범 ( Seung-bum Park ),박기창 ( Ki-chang Park ),김철현 ( Chul-hyun Kim ),이재희 ( Jea-hee Lee ),김병기 ( Byung-ki Kim ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.2
UIML 은 다양한 장치에서 사용되는 UI 구성을 위한 XML 기반의 추상 메타 언어로 다양한 Renderer 를 통해 각 장치에 맞는 UI 를 생산해 낸다. 기존의 Renderer 는 C++, HTML, WML 등의 다양한 환경을 지원하지만 J2ME 기반의 UI 를 지원하는 Renderer 는 등장하지 않았다. 본 논문에서는 J2ME 기반의 UI 구성요소를 분석하고 UIML 명세로부터 J2ME 의 UI 를 생성하는 방안에 대하여 연구하였다. J2ME 의 UI 를 명세하기 위한 Vocabulary 를 제안하고, 이를 UIML 과 J2ME UI 요소간의 맵핑에 사용하여 J2ME 플랫폼의 UI 를 UIML 로부터 생성해 낼 수 있다.
여성 아이스하키 동호인의 경기 참여 촉진을 위한 실행연구
박두제(Doo Jae Park),원영신(Young Shin Won),이재희(Jea Hee Lee) 한국여성체육학회 2013 한국여성체육학회지 Vol.27 No.2
The purpose of this study was to explore the problems that female members in ice hockey club had been experiencing with playing ice hockey club, especially in body checking, using action research. For investigation, the first author, the researcher, and coach had been persistingly observed study participants` all practices on the ice and matches for five years and had been written research diary about observation. The data were analyzed by causal chains analysis. The first author applied the practical process of coaching program for study participants twice in 2011 and 2013. Findings of this study were as follows. First, during the first phase of practical processing, coaching style which focused on developing ice hockey technique could not arouse women`s interest of participation into ice hockey. Second, the coaching style which combined technique with psychological approach could bring the change on study participants` interest into ice hockey. Third, the cognition of women`s participation into sports had been changed by the practical processing for the investigation. Therefore, considering new coaching programs for either female players in ice hockey club can be the first step to promote the game participation of female members in ice hockey club.