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이종의 무선네트워크 환경에서 모바일 IPTV서비스를 위한 핸드오버 방법
용석정(Suk-Jung Yong),박선식(Sun-Sik Park),최준열(Jun-Yeol Choi),윤희용(Hee-Yong Youn) 한국컴퓨터정보학회 2010 한국컴퓨터정보학회 학술발표논문집 Vol.18 No.2
모바일 IPTV는 최근 무선 통신 기술에서 가장 이슈화 되고 있는 어플리케이션 중에 하나이다. 본 연구는 이종의 무선 통신 시스템에서 모바일 IPTV 서비스를 제공하기 위한 방법을 연구한다. 특히 이 논문에서는 모바일 단말기의 이동성 예측에 기반한 수직적 핸드오버 기술을 제안한다. 제안된 연구는 기존의 기술과 달리 모바일 단말기의 속도와 방향 그리고 수신신호를 고려하여 특정 엑세스 포인트로의 움직임을 예측하게 된다. 이를 통하여 끊김없는 IPTV서비스를 제공할 수 있는 기반을 마련할 수 있다.
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?勇?(Sun, Yong-Jin),梁万基(Yang, Man-Ki) 중국문화연구학회 2018 중국문화연구 Vol.0 No.41
Gyewonpilgyongjip(『桂苑笔耕集』), the collected works of Choi Chi-won(崔致遠, 857~?), is the earliest existing individual poetry collection of the Korean Peninsula and a crucial Chinese classic of the ancient East Asian world. The 2007 edition published by Zhonghua Book Company(中华书局) and annotated by Dang Yin-ping(党银平), is an important revision of the classic, but still with many deficiencies to be improved. Focusing on the first three volumes of this edition, this paper exemplifies the lack of emendations and annotations, as well as incorrect annotations in this version. By suggesting possible amendments, it also encourages scholars of both Korean and Chinese academia to work on a more refined version that could provide reference to future generations.
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공동주택 옥외공간의 선호도 연구 - 컨조인트 분석기법 적용
용재선(Jae-Sun Yon),이현석(Hyun-Seok Lee) 한국주택학회 2007 주택연구 Vol.15 No.4
본 연구는 개별 효용가치추정을 통해 옥외공간에 대한 수요자들의 선호분석과 공급자 측면의 공동주택 시장 차별화 전략에 도움이 되는 합리적 근거를 마련함을 목적으로 한다. 본 연구에서는 합리적 효용가치추정을 위해 옥외공간 중 주차장과 상가시설 등과 같이 효용차별화 정도가 낮다고 판단되는 공간은 제외하였다.<BR> 연구의 방법으로는 수집된 설문자료를 컨조인트 분석을 이용하여 옥외공간의 속성별 효용과 신뢰성을 통한 각 속성과 속성수준들에 대한 선호도 분석을 실시하였으며 k-평균 군집분석을 통해 옥외공간의 선호를 응답자별로 집단화하여 분석하였다. 또한 공동주택 옥외공간의 속성별 속성수준에 따른 소비자의 효용을 통해 각 속성수준에 대한 소비자의 선호도를 분석하였다.<BR> 본 연구는 수요자 측면에서는 선호에 대한 합리적 근거를 마련하고 공급자 측면에서는 우위를 선점할 수 있는 시장 전략 수립과 공동주택 단지 옥외공간의 차별화 계획을 수립하는 기초자료로 활용될 수 있을 것이다. Much of research on condominium apartments has focused on indoor structure, rather than outdoor. As income grows and the preference of residents is diversified, the interest of outdoor space increases. This paper focuses on the preference of outdoor space in condominium apartments. It uses Conjoint Analysis to clarify and predict which factors of outdoor space are preferred by residents. This paper shows that outdoor cultural open space, jogging course, hydroponic facilities, and other cultural facilities are recognized as important ones by residents. The paper also classifies testing group into three clusters with demographic and statistical characteristics such as sex, age, the size of family, occupation, tenure type, the size of condominium, and income. Each cluster shows its own different preference by the characteristics. It is expected that this paper contributes to establishment of efficient plan by giving information for residents" preference of outdoor space in condominium apartments.
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김선욱(Sun Uk Kim),이한새(Han Sae Lee),전재호(Jae Ho Jeon),용준범(June Beom Yong),고한서(Han Seo Ko) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
In this study, an optimized Air-Curtain Device(ACD) was developed by Computational Fluid Dynamics(CFD). Case studies were performed with two variables: a discharged velocity and an angle. The factors that affect the air curtain formation are the discharged velocity and temperature. The CFD was used to determine the optimum deflection modulus of the ACD, and the analysis was verified by comparing it with the experimental results. In the case of an open type smoking booth using an air curtain, the Reynolds number and the discharge angle of the air are very significant factors. The optimized efficiency of the ACD is shown at the Reynolds number of 6542 and the degree of 30.
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김경희,김예린,김수아,한태인,박노동,홍경덕,황상덕,용주선,김재숙,Kim, Kyung-hee,Kim, Ye-Rin,Kim, Su-A,Han, Tae-In,Park, Ro-Dong,Hong, Gyung-Deok,Hwang, Sang-Duk,Yong, Ju-Sun,Kim, Jae-Suk 한국식생활문화학회 2020 韓國食生活文化學會誌 Vol.35 No.4
This study assessed the color, polyphenol content, and sensory characteristics of dressing containing varying concentrations (0, 3, 6 and 9%) of freeze-dried Natto. We determined that the absence of freeze-dried Natto (0%) imparted the highest additive value for both L and a, b. The polyphenol contents obtained were 0.63, 0.69, 0.74, and 0.82 mg/g for 0, 3, 6 and 9% of dressing containing freeze-dried Natto, respectively. The appearance, color, taste, texture, and overall preference of dressings with freeze-dried Natto showed significant differences between the samples. The overall preference was highest at 5.92 points, with dressing containing 9% Natto. The quality characteristics of the 9% added samples exhibited significantly higher values as compared to those of the controls, raising the possibility of development as a health-functional dressing.
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김경희,김예린,김수아,한태인,박노동,홍경덕,황상덕,용주선,김재숙,Kim, Kyung-hee,Kim, Ye-Rin,Kim, Su-A,Han, Tae-In,Park, Ro-Dong,Hong, Gyung-Deok,Hwang, Sang-Duk,Yong, Ju-Sun,Kim, Jae-Suk 한국식생활문화학회 2020 韓國食生活文化學會誌 Vol.35 No.4
This study evaluated the color, DPPH radical activity, and sensory characteristics of nutritional bars supplemented with varying concentrations (0, 2.5, 5, and 7.5%) of freeze-dried Natto. An inconsistent pattern was observed for the L value, whereas both a and b values increased significantly up to 5% addition of freeze-dried Natto. The DPPH free radical scavenging activity of nutritional bars supplemented with 0, 2.5, 5, and 7.5% freeze-dried Natto were determined to be 59.54, 59.70, 44.85, and 55.07%, respectively. The appearance, color, taste, texture, and overall preference of nutritional bars supplemented with freeze-dried Natto showed significant differences between the samples. The overall preference of the nutrient bar was highest at 6.08 points, determined for the 2.5% Natto supplemented bar. The quality characteristics of the 2.5% added samples exhibited significantly higher values as compared to the controls, thereby indicating the potential of development in health-functional cereal bars.
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경막외 Morphine의 첨가제로 사용한 Fentanyl과 Bupivacaine의 술후 진통효과 비교
안선연(Sun Yeon An),손 용(Yong Son),정영표(Young P 대한통증학회 1997 The Korean Journal of Pain Vol.10 No.2
N/A Backgound: The present study was undertaken to determine whether fentanyl or bupivacaine is a better adjuvant to epidural morphine with respect to postoperative analgesic use and with fewer incidence of side effects. Methods: We evaluated the clinical effects in 62 patients having cesarean section, divided in 3groups randomly. Group I(n 19) was received epidural marphine 4 mg, group II(n=22) was received epidural morphine 2 mg plus fentanyl 50 μg and group III(n=21) was received morphine 2 mg plus 0.25% bupivacaine 10 ml epidurally. We measured the first request time of analgesic for postoperative pain, the number of supplemental analgesics within 24 hours and the incidence of side effects postoperatively. Results: The first request time of analgesic for postoperative pain was significantly shorter in group III than in group I and IL The analgesic use in the first 24 hours was significantly more in group III than in group I and II. The side effects were significantly fewer incidence in group II than in group I and III. Conclusions: In conclusion, the combined use of epidural morphine and fentanyl provided better analgesia than the combined of epidural morphine and bupivacaine.
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