• Journal of Digital Contents Society
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• v.16 no.5
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• pp.775-781
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• 2015

EBS started 2HD MMS experimental broadcasting for the first time in Korea on Feb. 11, 2015. It uses the picture compression technique based on MPEG-2 CODEC, and applies the result of the experiment about variable bit rates and changes according to the scanning types, 1080i and 720p. But when changing channels, the delay in displaying picture occurs because of the operation of the variable GOP on MMS broadcasting, which optimizes image quality by application variable bit rates. In this study, verified the relationship between the decoding time of I frames and the GOP set in the encoding step by experimenting and analyzing ON-AIR TS. By using the verification data and adjusts the Encoder GOP parameters, improved the different video display time delays according to the scanning mode 1080i and 720p.

• Journal of Hydrogen and New Energy
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• v.28 no.6
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• pp.704-711
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• 2017

Korea, which has a high dependency on energy imports, is greatly affected by fluctuations in international oil prices. In order to offset these effects, various policies such as 'diversification of energy sources' and 'energy mix' are being pursued. Renewable Fuel Standard (RFS) is a policy promoted for this purpose, and a compulsory mixing system is applied only to the diesel. In order to reduce dependence on fossil fuels in various countries, they are concentrating on the dissemination of bio-alcohol as well as bio-diesel, and commercialization through various verification. In this study, evaluation of domestic materials and vehicles was carried out to promote domestic bio alcohol fuel. We analyzed the fuel characteristics of domestic quality standard items by mixing them with gasoline of automobile at a certain mixing ratio (0%, 3%, 6%, and 10%).

• Food Science and Preservation
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• v.21 no.6
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• pp.784-789
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• 2014

This work aimed to investigate the changes in the nutrient contents and antioxidant activity of Peucedanum japonicum Thunb. by ripening stage, growing condition, and blanching. The crude protein content of the young leaves (3.6~4.3%) was higher than that of the mature leaves (3.1~3.9%). Higher calcium contents were observed in the greenhouse-cultivated samples (225.9~259.2 mg/100 g) compared to the field-cultivated samples (178.5~199.5 mg/100 g). The vitamin C and folate contents (18.1~83.8 and 175.8~220.2 mg/100 g, respectively) of the field-cultivated samples were significantly (p<0.05) higher than those of the greenhouse-cultivated samples (13.1~57.7 and 133.0~148.8 mg/100 g, respectively). The growing condition and blanching were significant factors affecting the changes in the vitamin and polyphenol contents. The ${\beta}$ carotene contents of the blanched samples increased 2.6-fold compared to those of the raw samples. The total polyphenol contents (10.2~17.1 mg/g extract) and DPPH radical scavenging activity ($IC_{50}=2.0{\sim}3.0mg/ml$) of the blanched samples were significantly (p<0.05) higher than those of the raw samples (1.8~4.3 and $IC_{50}=16.2{\sim}21.1mg/ml$, respectively).

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.157-162
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• 2009

As the improvement of computer performance and the development of IT technology have influence upon publishing industry, the e-Book system, a type of electronic resources, has come out. This is a method to use both texts and 2D image illustrations. Nowadays, there are more and more users who want high quality contents and a variety of contents such as the illustrated fish book using the 3D system. This article adds 3D animation objects to the current e-Book system and designs and realizes the 3D fish simulation system to which e-Book technology is applied so as to improve the comprehension of texts and readability of detailed information and increase readers' immersion as well.

• ALGAE
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• v.28 no.4
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• pp.355-363
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• 2013

The coralline alga, Corallina officinalis, is a widely distributed intertidal species in temperate coastal regions. It is usually exposed to high fluctuations of light intensity, light quality, temperature, and desiccation, all of which affect the temporal and spatial distribution as well as the morphology and the metabolism of this alga. In laboratory experiments we examined the effects of different light intensities (50, 100, and 200 ${\mu}mol$ photons $m^{-2}s^{-1}$) on photosynthesis, calcification, photosynthetic pigment contents (chlorophyll a and carotenoids), and growth rate of C. officinalis to clarify its photoacclimation strategies. Net photosynthesis, calcification and dissolution rates based on weight were not sensitive to irradiance. Although, photosynthesis and calcification did not clearly respond to light intensity, photosynthetic pigment contents were significantly lower at higher light intensities. In addition, higher irradiances induced significant enhancement of gross photosynthesis based on chlorophyll a. As a result, the specific growth rate was significantly stimulated by high light intensity. Our results suggest that photoacclimation of C. officinalis to different light conditions may be regulated to optimize growth.

• The Journal of the Korea Contents Association
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• v.19 no.12
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• pp.327-335
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• 2019

The purpose of this study was to investigate the effects of work stress on work stress, work-family promotion, and quality of life according to the work-family balance of 194 dental hygienists with preschool children in K area. On average, the work-family balance was 3.36, and in case of low child support (3.43), family help was as high as 3.54, job stress averaged 2.82, with a low household income (2.94), high child support (3.19), and family help was bad (3.66). The average home-work facilitation was 3.47, with more than 10 years of experience (3.55). The average quality of life was 3.19 and the family help was good (3.55). Regression analysis of general characteristics, job stress, work-family promotion, and quality-of-life effects on work-family balance showed low child support (p = .037), low job stress (p = .002), There was a high level of work-family promotion (p = .000) and a high quality of life (p = .000). In order to improve the work-family balance, work-family promotion and to improve the quality of life by seeking ways to reduce the family's help and job stress for the satisfactory job and family life of working married dental hygienists.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.163-173
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• 2019

The purpose of this study is to analyze the influence relationship of spectators' evaluation, perceived value, overall satisfaction, and loyalty on the service quality of Goyang International Flower Exhibition. As a result of analysis, first, it turned out that the higher the quality of the fair service, the higher the perceived value, overall satisfaction and loyalty. Especially, fair service quality showed a greater influence on overall satisfaction than on perceived value. Therefore, in order to improve the quality of the fair service, careful planning and operation of event content, accessibility, and convenience are required. Second, perceived value did not have a positive (+) effect on overall satisfaction, but it had a positive (+) effect on loyalty. The reason for this is that the spectators' evaluation of the perceived factors that can induce the interest of the flower product and the increase of the purchase, such as the quality problem of the product, the design problem, the exhibition and display problem, was low. Third, both perceived value and overall satisfaction had a positive (+) effect on loyalty, but the effect of overall satisfaction was greater than that of perceived value. Therefore, a strategy for enhancing the perceived value is required.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.586-597
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• 2014

In this paper, we describe a symbolization analysis of a Diamond World Mandala animation. The mandala means the basic idea of the esoteric Buddhism. The Diamond World Mandala has a very high value as cultural archetype due to have better specific meaning and aesthetic quality than other mandalas. Most researches of Buddhist cultural contents have focused on cultural assets restoration and abstract discussion on contents industrialization until now. However researches on contents directly delivering Buddhism scriptures' meanings are insufficient. Therefore, in this paper, we analyze concept of mandala and symbolical meaning of appeared elements in mandala rather than theoretical development appropriateness of mandalas' contents, then implement a prototype of a mandala animation. The animation is made of intangible culture such as an intellectual legacy of mankind, and its applications are as follows; education service for Buddhist doctrines, and cultural services through easy accessibility of Buddhist culture, etc.

• Journal of the East Asian Society of Dietary Life
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• v.22 no.6
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• pp.818-825
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• 2012

The effects of sweeteners(fracto-oligosaccharide: xylitol: erythritol: stevioside) as alternative ingredients to sugar on the characteristics of yanggeng were investigated. The relative sweetners of fracto-oligosaccharide, xylitol, erythritol and stevioside to a 25% sugar solution were found to be 25%, 25%, 22.5% and 0.25% respectively. Sensory evaluation to compare yanggeng made using fracto-oligosaccharide, xylitol, erythritol and stevioside to a 100% sugar yanggeng revealed that they differed by 37.5%, 37.5%, 33.75% and 0.75% respectively highlight. The viscosity of yanggeng differed depending on the type of sweetener used. Sugar contents(°Brix) were the highest in sugar. The moisture contents were the highest in yanggeng made with 0.75% stevioside, while the hardness, adhesiveness, chewiness and gumminess were highest in that made with 33.75% erythritol. The springiness was highest in yanggeng made with 37.5% fracto-oligosaccharide, while the cohesiveness was highest in that made with 37.5% xylitol, and the L-values, b-values and a-values were lowest in yanggeng made with 25% sugar. Sensory evaluation, revealed that the overall preference was highest for yanggeng made with 37.5% fracto-oligosaccharide and xylitol.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.212-221
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• 2017

This study was identify the effective factors on the subjective quality of life of the elderly. The data were collected on September 4, the subjects were 201 elderly who participated in the 1004day event in B metropolitan city. The data were analyzed by SPSS 20.0 program using descriptive statistics, t-test, ANOVA, Scheffe's test. Pearson's correlation coefficient and Stepwise Multiple Regression. The level of subjective quality of life was affected by general characteristics including education level(F=5.87, p=.001), living with whom(F=4.39, p=.005), perceived economic state(F=16.25, p<.001). The subjective quality of life of the elderly showed a positive correlation with subjective health status, social activity and family support. According to the result of multiple regression analysis, Factors affecting the subjective quality of life is subjective economic status, living with whom, family support and, social activities, it was explained by 23.6%. Based on these findings in order to improve the subjective quality of life of the elderly by developing improved family support programs and various social activities program proposes to apply.