• International Journal of Contents
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• 제3권1호
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• pp.9-13
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• 2007

This paper proposes a policy on efficient load balancing that can reduce the network game server load burdened by surging number of users. The study adopted a contents-based clustering technique. Recently, skyrocketing number of clients in on-line games causes overloads on specific game servers, and the consequent server-instability brings the worst situation: a server failure. To cope with this problem, one can install more high-powered servers or be equipped with back-up servers, which is often inefficient in terms of cost performance. To solve this problem, the present study examined the technology enhancing the performance and efficiency of game servers by reducing the loads of specific game servers. In doing this, this study used the clustering technology to compose game servers classified by their contents and carried out appropriate load balancing to numerous clients with load balancers in each region.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2013년도 제48차 하계학술발표논문집 21권2호
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• pp.33-34
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• 2013

Many enterprises have various business models with the distribution structure on the basis of UCI. However, this tries are performed locally. So, there are still many side-effects for other enterprises to share contents mutually. We propose a contents distribution model on the basis of UCI. We first research on contents syndicator and its requirements. And the we establish a standard model for contents distribution.

• International journal of advanced smart convergence
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• 제9권2호
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• pp.84-89
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• 2020

This study multilaterally explores South Korean YouTuber Winter Library's book-related contents uploaded on one's channel. As science and technology have developed, now the ordinary people can produce their videos and share them online. YouTube has been the most popular video storage service, and many Koreans use and enjoy it as well. This study investigates book-related contents produced by YouTuber user Winter Library, often called BookTuber (Book plus YouTuber). More specifically, it analyzes Winter Library's various contents by 1) Components of YouTube Channel 2) Contents of Components 3) Components that help to increase reading rates. This study is contributing as it focuses on book, which is not so common topic in YouTube. As a result, the study discovers unique aspects of YouTube contents, and also explores the book-related industry in South Korea. This YouTube channel could be functional for increasing reading rates, especially among adults.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
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• pp.243-247
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• 2007

가상현실을 구축하는데 있어서 사용자 인터페이스는 몰입감을 증대시키기 위한 중요한 요소 중 하나이다. 하드웨어 성능의 향상으로 가상현실 시스템이 게임, 방송, 교육, 문화 콘텐츠 등에 대중적으로 널리 활용되면서, 사용자의 자유로운 움직임을 보장하면서 가상현실을 제어할 수 있는 무선 인터페이스에 대한 연구의 필요성이 증대되고 있다. 본 논문에서는 가상현실과 상호작용을 위해 지그비(Zigbee)와 가속도 센서(Accelerometer)로 구성된 ZA센서를 개발하고, ZA센서와 무선통신 모듈로 가상현실 시스템과 통신을 하면서 상호작용하는 가상현실 시스템의 구축 방안을 제안한다. 또한 센서의 움직임에 따른 가상환경 제어 응용을 구현함으로써 개발된 시스템의 활용방안을 제시한다.

• 열처리공학회지
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• 제29권4호
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• pp.176-180
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• 2016

In this study, a microstructural investigation was conducted on the cracking phenonmenon occurring during hot rolling of Fe-23Mn high-manganese steels with different aluminium and carbon contents. Particular emphasis was placed on the phase stability of austenite and ferrite dependent on the chemical composition. An increase in the aluminum content promoted the formation of ferrite band structures which were easily deformed or cracked. In the steels containing high carbon contents of 0.4 wt.% or higher, on the other hand, the volume fraction and thickness of ferrite bands decreased and thus the cracking frequency was significantly reduced. Based on these findings, it is said that the microstructural evolution occurring during hot rolling of high-manganese steels with different aluminium and carbon contents plays an important role in the cracking phenomenon. To prevent the cracking, therefore, the formation of second phases such as ferrite should be minimized during the hot rolling by the appropriate control of the chemical composition and process parameters

• Asian-Australasian Journal of Animal Sciences
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• 제15권10호
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• pp.1439-1444
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• 2002

An objective of this study was to determine the effects of increasing contents of rumen undegradable protein (RUP) from formalin treated soy bean (FSBM) on rumen functions. Four rumen canulated non-lactating cows were randomly allocated to total mixed rations (TMR) containing different proportions of soy bean meal (SBM) and FSBM. Of rumen fermentation characteristics, concentrations of ruminal fluid ammonia and molar proportions of isoacids decreased with increasing contents of RUP in diets (p<0.01). The animals on TMR containing only SBM gained less weight and had smaller rumen volume than those on TMR containing RUP from FSBM (p<0.05). Organic matter and neutral detergent fiber digestibility in sacco were not different (p>0.05). The density of protozoa particularly small Entodinium sp. in ruminal fluid was higher in animal fed TMR containing SBM:FSBM (34:66) and FSBM than those fed TMR containing SBM:FSBM (66:34) and SBM (p<0.01). Total viable count, and net microbial protein synthesis as indicated by purine derivatives in urine increased with increasing contents of RUP from FSBM (p<0.01). It can be concluded that a reduction in net microbial protein synthesis in the rumen with increasing contents of RUP in the diet can be due to the reduction of preformed protein available for microbial growth as well as an increased turnover rate of microbial cells by predatory activity of protozoa.

• 실천공학교육논문지
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• 제6권2호
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• pp.111-117
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• 2014

이 연구에서는 취업정보센터 웹사이트 이용자의 컨텐츠 특성(사용자 편의성, 정보성, 고객서비스성)에 대한 지각이 이용자 반응(이용자 만족도, 이용자 애호도)에 미치는 영향을 분석하였다. 주요 연구결과로 첫째, 취업정보센터 웹사이트 컨텐츠 특성들은 이용자 만족도를 36.4% 설명하는 것으로 나타났고, 상대적 영향력은 정보성, 사용자편의성, 고객서비스성 순으로 나타났다. 둘째, 취업정보센터 웹사이트 컨텐츠 특성들은 이용자 애호도를 36.2% 설명하는 것으로 나타났고, 상대적 영향력은 정보성, 고객서비스성, 사용자편의성 순으로 나타났다. 이를 통해 취업정보센터 웹사이트 이용자들의 만족도와 애호도를 높이기 위해서는 웹사이트 컨텐츠에 대한 고려가 중요함을 알 수 있었다.

• Asian-Australasian Journal of Animal Sciences
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• 제22권9호
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• pp.1248-1255
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• 2009

This study was carried out to evaluate the fatty acid composition in Nellore cows supplemented with either linseed (n-3) or canola grains (n-6 and n-9). Fifteen Nellore cows, aged five years and bodyweight 550 kg${\pm}$48 kg, were randomly distributed to the following treatments: CON (control), LIN (linseed) and CAN (canola grains). The cows were fed for 80 days. The concentrations of C18:0, C18:2 n-6 and C20:3 n-6 fatty acid were higher (p<0.10) in CON blood plasma in comparison to follicular liquid. Likewise, PUFA, n-6 contents, PUFA:SFA and n-6:n-3 ratios were higher (p<0.10) in blood plasma. On the other hand, C18:1 n-9, C22:5 n-3, MUFA and n-3 contents were lower (p<0.10) in blood plasma. C18:0, C18:2 n-6, C18:3 n-3, C22:5 n-3, PUFA, n-6, n-3 contents and PUFA:SFA ratio were higher (p<0.10) in LIN blood plasma than in the follicular liquid. Nevertheless, C14:0, C16:0, C16:1 n-7, PUFA, C16:0, C18:1 n-9 and MUFA contents were lower (p<0.10) in LIN blood plasma. On treatment CAN, the C18:0 and SFA contents, and n-6:n-3 ratios were higher (p<0.10) in blood plasma. However, C20:3 n-6, C22:5 n-3, PUFA and n-3 contents were lower (p<0.10) in blood plasma. C16:0, C18:0, PUFA, SFA contents and PUFA:SFA ratio did not differ (p>0.10) among the treatments. C14:0, C16:1 n-7, C18:2 n-6 and n-6 contents were higher (p<0.10) for CON and CAN than LIN. C17:1 n-7, C20:4 n-6 and C 22:0 contents were higher (p<0.10) for CAN than CON and LIN. C18:1 n-9, C18:3 n-3, MUFA and n-3 contents were higher (p<0.10) for LIN and CAN than CON. C20:3 n-6 content and n-6:n-3 ratio were higher (p<0.10) for CON than LIN and CAN. C22:5 n-3 content were higher (p<0.10) for CON and LIN than CAN. The concentrations of fatty acids in blood plasma and follicular liquid were not correlated for any fatty acid, independent of the treatment studied. Canola grain added to the diet of Nellore cows resulted in increased concentrations of fatty acids n-6 and n-3 in follicular liquid.

• 한국정보통신학회논문지
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• 제23권2호
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• pp.229-235
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• 2019

초중등 소프트웨어교육을 운영할 수 있는 예비교사 교육과정의 중요성이 제기되고 있다. 하지만 국내에서 예비교사를 위한 소프트웨어교과교육과정에 대해서 어떤 기준에 의해 강화되어야 하는지에 대한 연구는 미흡한 실정이다. 이에 본 연구에서는 교수내용지식 4가지를 기준으로 국내외 사례를 분석하였다. 국내 사례는 교육내용과 교수법에 집중적으로 구성되어 있는 것으로 나타났다. 그리고 국내외 사례 분석을 통하여 예비교사를 위한 교수내용지식을 기준으로 하여 소프트웨어 교육내용을 제시하여 보았다. 주요한 내용은 4개 영역을 모두 삽입하였고 교육내용과 교수법을 가장 강조하여 구성하고 소프트웨어교과교육 전문가에게 타당성 검토를 의뢰하였다. 전문가 설문 조사 결과 대부분 타당도와 합의도가 기준치를 넘었지만 학생관리 분야에 대해서 CVR값이 기준값을 하회한 것으로 나타났다.

• 한국식품조리과학회지
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• 제32권1호
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• pp.9-15
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• 2016

The changes of resistant starch (RS) contents of cooked rice with soybean and coconut oils under different storage conditions were investigated and RS contents were compared between the rice and cooker types. The japonica (Hopyeong) and the indica (Thailand) type rice were cooked (washed rice: water = 100: 130) using an electric cooker and a saucepan. The coconut oil and soybean oil (3%, based on rice, w/w) were added into cooking water before heating. The RS contents of freeze-dried cooked rice powders (newly-cooked rice, stored for 12 h in the refrigerator, microwave heating after storage for 12 h in the refrigerator) were measured by the AOAC method. The RS contents of cooked rice using a saucepan were higher than those using an electric cooker. The indica type cooked rice had a higher RS content than the japonica type cooked rice, regardless of storage conditions. However, addition of oil before cooking rice resulted in increased RS content on storage in the refrigerator. The highest RS content of the cooked indica type rice with soybean oil ($5.89{\pm}0.22%$) that was stored for 12 h in the refrigerator was analyzed. The results suggested that the cooked rice formed retrograded (RS3) and amylose-lipid complex (RS5) type RS; furthermore, the RS content is affected by storage conditions, rice, cooker and oil types.