• The Journal of the Korea Contents Association
• /
• v.9 no.2
• /
• pp.261-269
• /
• 2009

In this paper we consider Internet Protocol Tele-Vision (IPTV) Service that started recently in Korea. IPTV makes it possible to watch high quality TV programs and a lot of multimedia contents with TV by way of Internet. The service providers are interested in the factors that influence the diffusion of new service such as IPTV. We therefore search the functional-attribute that would influence the acceptance of IPTV service, and propose a model for analyzing the relationship between the attributes and the intention of buying. The model is based on the extended Technology Acceptance Model (TAM). Survey results show that the significant functional attributes influencing the intention of buying are contents variety and convenience.

• Journal of Digital Convergence
• /
• v.14 no.2
• /
• pp.389-396
• /
• 2016

This study analyzes factors that influence use diversity or usage of mobile video services. This study conducts multiple regression analysis to draw the major factors that affect use diversity or usage of mobile video services. The major findings of this study are as follows. First, IPTV membership status, DMB watching status, and TV contents broadcasting status affect the use diversity of mobile video services. Second, TV contents broadcasting status and video streaming quality affect the usage of mobile video services. This study provides some implications that TV contents broadcasting is a core element in mobile video services. The future research is discussed.

• The Korean Journal of Food & Health Convergence
• /
• v.6 no.3
• /
• pp.1-4
• /
• 2020

This study analyzed in nutrient contents changes of adult's favorite foods between March 2019 and July 2020 after policy implementation nutrient-poor foods based on special act on safety control of adult's dietary life in Korea. Among adult's favorite foods manufactured or sold in 2020 as well as 2019, calories and key nutrients in breads, ice creams and pizzas were improved in comparison to those in the other food groups. However, most of the changes in calories or key nutrient contents exist. The newly introduced candies, breads showed slightly greater improvements in calories and key nutrient contents than in 2019. On the other hand, some negative changes were found in newly introduced chocolates in comparison to previous ones. Overall, policy implementation on foods seemed to induce changes in nutrient contents of adult's favorite foods. In particular, nutrition education is reported to have a positive impact on adult's frequency and preference for processed foods, and more systematic and continuous nutrition education measures should be devised to help adult as consumers selectively purchase healthy foods. This research is meaningful in that it is the first study to analyze the quality changes of adult's favorite foods since the high-calorie and low-nutrient food management policy.

• The Journal of the Korea Contents Association
• /
• v.10 no.1
• /
• pp.213-221
• /
• 2010

The purpose of this study is to consider a social influence and fitness with related a ripple effect of media fortune-contents in digital age. This Work was studied by Q-methodology to approach in-depth and essential meaning about this study. The perception type of this study was divided into three types. Above all, in this study we investigate two points to us. Points of this study ; First, how the type of the perception is divided on the subjectivity about Media Fortune-contents in Digital Age? Second, what is a trait of character in same or different quality within these types? The result reveals three types that divided '1 : Scientific Appeal Type ; N=10', '2 : Value-depended Type ; N=7', '3 : Positive Preference Type ; N=3'. Those types found that there is very different type all over. In conclusion, it was found that general mass preferred and enjoyed positively on fortune culture, and were concerned about various a practical use and participation of media fortune-contents.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.32 no.3
• /
• pp.252-255
• /
• 1999

The quality characteristics of the Korean traditional salt-fermented fish sauces, the traditional anchovy sauce (TAS) and the sandlance sauce(TKS) were evaluated comparing to the commercial anchovy sauce (CAS) and sandlance sauce (CKS). The acidity was higher in TKS than in TAS, whereas the contents of VBN, total-N and amino-N were higher levels in TAS. In color values, L and b values in TAS were generally higher than those in TKS, whereas a and ${\Delta}E$ values were higher in TKS. The contents of total free amino acids in TAS and TKS were $12.40\;g\%$ (w/v) and $9.549 g\%$ (w/v), respectively. The contents or six amino acids, alanine, glutamic acid, leucine, isoleucine, valine and Iysine were higher in TAS, whereas the contents of arginine, glutamic acid, leucine, alanine and valine were higher in TKS. Nucleotides such as IMP and hypoxanthine were principal components in both TAS and TKS. The nitrogen related compounds, TMAO, TMA and total creatinine were determined to be $108.8\;mg\%$ (w/v), $60.5\;mg\%$ (w/v), $62.4\;mg\%$ (w/v) in TAS, and those in TKS were $60.1\;mg\%$ (w/v), $24.1\;mg\%$ (w/v), $67.6\;mg\%$ (w/v), respectively.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2012.07a
• /
• pp.113-114
• /
• 2012

게임이 기획, 그래픽, 프로그램의 복합적 기능을 가진 콘텐츠이지만 특별히 수준 높은 그래픽 데이터는 이용자의 만족도, 몰입 등에 긍정적인 영향을 미치는 중요한 영역이다. 그러나 아직 국내외에 게임 그래픽 데이터의 품질을 객관적으로 평가할 수 있는 기준이 마련되어 있지 않다. 이에 따라 본 논문에서는 게임 그래픽 데이터의 품질 평가를 위한 지표를 개발하는 프로세스를 제안한다. 제안된 프로세스는 그래픽 데이터의 품질 평가 영역 추출을 위한 방법과 세부 평가 지표 마련을 위한 평가 항목 추출방법들로 구성된다. 본 연구 결과는 고품질 게임 개발을 위한 품질평가 지표 개발에 적용될 것이며 관련 분야의 품질평가 모델 개발의 참조 모델이 될 것이다. 향후 본 연구는 국내외 게임 그래픽 데이터의 품질평가 표준안 설계 개발로 진행될 예정이다.

• Proceedings of the KIEE Conference
• /
• 2007.07a
• /
• pp.770-771
• /
• 2007

Wind power plant is based on the wind energy so the active power is frequently changed and connected to grid according with wind condition. These characteristics are bed effect to distribution line. On this reserch, we want to analyze the quality of electric power synchro/asynchronous generation system in Dae Kwan Ryung wind farm. The contents of analysis are active/reactive power variation and total demand distortion and transiency and sag/swell phenomena. we hope this research can contribute to the power quality improvement.

• The Journal of the Korea Contents Association
• /
• v.12 no.5
• /
• pp.272-279
• /
• 2012

This study aims to analyze the factors that affect quality of life and sensory processing abilities in older adults. Participants were 121 older adults aged over 65. Quality of life was evaluated with Life satisfaction Index for the Elderly and sensory processing abilities were measured with Korean-AASP. Korean Activiy Card Sort was utilized to assess their activity level. Low positive correlations were found between quality of life and activity level in total score(p<.01), IADL(p<.05), leisure(p<.01), and social participation(p<.01). Correlation coefficients between quality of life and sensory processing abilities showed low negative correlations in low registration(p<.01), sensory sensitivity(p<.01), and sensation avoiding(p<.01), however, there were low positive correlations in sensation seeking(p<.05). The importance of sensory processing was highlighted from the findings of statistically significant correlations between quality of life and sensory processing abilities. This indicates that improvement of sensory processing abilities is critical in occupational therapy service for older adults. Furthermore, the findings of close relationship between activity levels and sensory processing abilities need to be reflected in senior welfare policy.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2006.11a
• /
• pp.307-312
• /
• 2006

Protection to the multimedia contents is inevitable to ensure that only authorized users be able to access the protected contents for consumption. Since protection mechanisms need to be designed efficiently by exploiting the type of the contents, we propose a protection scheme for the video bitstream encoded by Scalable Video Coding (SVC) technique. Our scheme exploits the property of SVC in which a video is encoded into spatial, temporal, and quality scalability layers. By applying our proposed protection scheme to the appropriate scalability layers we can effectively control the SVC contents completely or partially. Each layer can be flexibly protected with different encryption keys or even with different encryption algorithms. The algorithms that are used to protect each layer are described by the standardized protection description tool, which is the MPEG-21 Intellectual Property Management and Protection (IPMP) Components. In this paper, we present the design of the proposed layered SVC protection scheme, its implementation and experimental results. The experiment result shows that the proposed layered SVC protection scheme is very effective and can easily be applied.

• ETRI Journal
• /
• v.41 no.5
• /
• pp.670-683
• /
• 2019

In this paper, we analyzed the signal integrity of a system interconnection module for a proposed high-density server. The proposed server integrates several components into a chassis. Therefore, the proposed server can access multiple computing resources. To support the system interconnection, among the highly integrated computing resources, the interconnection module, which is based on Serial RapidIO, has been newly adopted and supports a bandwidth of 800 Gbps while routing 160 differential signal traces. The module was designed for two different stack-up types on a printed circuit board. Each module was designed into 12- (version 1) and 14-layer (version 2) versions with thicknesses of 1.5T and 1.8T, respectively. Version 1 has a structure with two consecutive high-speed signal-layers in the middle of two power planes, whereas Version 2 has a single high-speed signal placed only in the space between two power planes. To analyze the signal integrity of the module, we probed the S-parameters, eye-diagrams, and crosstalk voltages. The results show that the high-speed signal integrity of Version 2 has a better quality than Version 1, even if the signal trace length is increased.