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- 저자 : 이용승(Lee, Yong Seung) (검색결과 73 건)
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소셜 상황 인지를 통한 추천 시스템: MyMovieHistory 사례 연구
이용승,정재은,Lee, Yong-Seung,Jung, Jason J. 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.7
Social networking services (in short, SNS) allow users to share their own data with family, friends, and communities. Since there are many kinds of information that has been uploaded and shared through the SNS, the amount of information on the SNS keeps increasing exponentially. Particularly, Facebook has adopted some interesting features related to entertainment (e.g., movie, music and TV show). However, they do not consider contextual information of users for recommendation (e.g., time, location, and social contexts). Therefore, in this paper, we propose a novel approach for movie recommendation based on the integration of a variety contextual information (i.e., when the users watched the movies, where the users watched the movies, and who watched the movie with them). Thus, we developed a Facebook application (called MyMovieHistory) for recording the movie history of users and recommending relevant movies.
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측두하악장애 환자에서 저작 효율 및 구강건강관련 삶의 질 평가
이용승,변영섭,최종훈,안형준,Lee, Yong-Seung,Byun, Young-Sub,Choi, Jong-Hoon,Ahn, Hyung-Joon 대한안면통증구강내과학회 2010 Journal of Oral Medicine and Pain Vol.35 No.2
In this study, the objective masticatory efficiency of two groups of temporomandibular disorder patients, pain and sound groups, was compared with that in a normal group using the MAI (mixing ability Index). The subjective chewing ability was evaluated using questionnaires, such as the Food Intake Ability Index (FIA) and Visual Analogue Scale (VAS). The Oral Health Impact Profile (OHIP)-49K of the patients was also examined to measure the oral health-related quality of life. The results were as follows: 1. The MAI, FIA and VAS in the pain group were significantly lower than in the normal and sound groups. This shows that the chewing efficiency of the pain group was lower than the normal and sound groups (P<0.05). However, there was no significant difference between the sound and normal groups. 2. The OHIP-49K for the oral health-related quality of life showed a significant increase in both the pain and sound groups compared with normal group. This means that the oral health-related quality of life was lower in both the pain and sound groups. 3. There was a correlation between the MAI, FIA and VAS (P<0.01) in all subjects (71 persons). The OHIP-49K was associated with the FIA and VAS. 4. There was a correlation between the FIA and VAS (P<0.05) in the sound group but no correlation in the other groups. 5. There was a correlation between the FIA and VAS in all groups. 6. The VAS was increased significantly in the pain group according to the level of pain reduction after treatment (P<0.05). However, there was no significant increase in the MAI, even though there was an improvement in masticatory efficiency. In addition, there was no difference in the FIA and OHIP-49K according to the level of pain reduction after treatment. In this study, it is believed that pain is a main factor decreasing the masticatory efficiency in patients with temporomandibular disorders. Moreover, TMJ sounds decrease the quality of life but do not decrease the masticatory efficiency. Therefore, it is important to control the pain in order to improve the masticatory efficiency in temporomandibular disorder patients. Moreover, managing both pain and sound can improve the quality of life.
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이용승(Lee, Yong-Seung),정솔영(Jung, Sol-Young),이재걸(Lee, Jae-Gul),이종민(Lee, Jong-Min) 대한전기학회 2023 전기의 세계 Vol.72 No.8
한국전력공사 전력연구원(이하 전력연구원)에서는 향후 재생에너지의 비중이 증가하고 전력망의 유연성이 부족한 경우 발생할 수 있는 재생에너지 잉여전력의 발생량을 정량적으로 전망할 수 있는 방법론과 분석 모델을 개발하였다. 이 방법론은 시간대 및 계절별 전력수요 및 재생에너지 발전량의 변화를 모두 고려한 잉여전력의 발생량을 분석할 수 있으며 잉여전력의 발생 패턴까지도 분석이 가능한 방법이다. 시간대 및 계절적인 잉여전력 발생 특성은 중장기 최적 Energy Storage Mix(P2X 포함) 구성 연구를 포함하여 재생에너지 잉여전력 활용을 위한 다양한 연구에 의미 있는 정보가 될 수 있다. A new methodology and analysis model have been developed to predict how much surplus renewable energy will occur in what pattern in the future. This methodology can analyze the amount of surplus renewable energy generation considering both daily and seasonal power demand and the amount of renewable energy generation as well as its generation pattern. It was found that 303 TWh of surplus power can be generated in 2050, due to relatively high proportion of solar power generation facilities at 85% in Korea’s carbon-neutral scenario. So, the trend of generation of surplus power varies depending on the change in the amount of solar power generation. From the perspective of planning a renewable energyoriented electrical grid, it is important to ratianally predict the amount of surplus power generated in the mid- to long-term and establish technical alternatives to minimize surplus power. In particular, for mid- to long-term energy storage and power conversion(P2X) technologies that need to consider seasonal characteristics, the results derived from this study are expected to be very important information.
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Al 케이블 접속부 열특성에 따른 접속시공 최적 방안 연구
이용승(Yong-Seung Lee),문상근(Sang-Keun Moon) 대한전기학회 2021 전기학회논문지 P Vol.70 No.4
The causes of joint overheat problems are included in the mechanical splicing processes. In this paper, an analysis and examination of the cable joint process are conducted in comparison with typical types of connectors and various processing methods regarding water blocking substances inside the cable conductors. Because water blocking substances in the joint cause substantial thermal resistance and abnormal conditions and faults, the joint process is controlled to eliminate all problematic causes. Even though the conductor preparation and reassembling are especially difficult in rough working environments such as manholes, and the level of finishing and reliability are diverse depending on the proficiency of workers, this study expects that there is a point, wherein, both the recommended processing level of substance removal and the connection-thermal properties are simultaneously satisfied. Experimental results are conducted for types of the connection procedures, connectors, and testing current cycles. On stranded common aluminum cable connections, the suggested process ensures the thermal characteristics; nevertheless, the water blocking material is not completely removed as long as the procedure can maintain over 80% of the contact strands.
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이용승(Yong Seung Lee),양순하(Soon Ha Yang),오성희(Sung Hee Oh),강병희(Byung Hee Kang),노정래(Cheong Rae Roh),김종화(Jong Hwa Kim) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.3
Agnathia is a rare malformation derived from the first brachial arch malformation. Most reported cases of agnathia have been associated with other lethal anomalies. However, the infant reported here did not have any specific anomaly other than agnathia and aglossia. We present a case of isolated agnathia which was diagnosed by prenatal ultrasonography with a brief review of literatures.
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한국의 다문화제도화 방안 ; 다문화정책에 대한 비판적 검토 -주체와 제도를 중심으로
이용승 ( Yong Seung Lee ) 한국민족연구원 2010 민족연구 Vol.0 No.44
Korean government has implemented multiculturalism or multicultural policy since mid of 2000, though she is not yet multi-ethnic or multi-cultural society in the light of the West. This study`s purpose is appreciation of Korean governmental multicultural policy in terms of institutions. Because history is short, appraisal may be seen more or less hasty. I think, however, intermediate check is needed. For this paper`s aim, I divided the target of multicultural policy into four categories and analyze each of classes; marriage migrants[chapter 2], migrant workers[chapter 3], permanent residents and naturalized citizens[chapter 4], citizens[chapter 5]. In conclusion, I argued that government-driven multiculturalism is no different from assimilation policy and suggested some ideas for more advanced multicultural policy in each categories. Furthermore, if there were no improvement of migrants` situation of second-class citizens in Korean society, even assimilation policy will be failed. For the sake of that goal, this study contended restoration of ``politics`` in the area of multicultural policy. I hope the research to stimulate a more advanced study.
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