• 제목/요약/키워드: Science and Media

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Development of Liquid Culture Media for the Mass Production of Beauveria bassiana Blastospore (흰굳음병균(Beauveria basiana) 단균사의 대량배양생산을 위한 액체배지 개발)

  • 서종복;진병래
    • Journal of Sericultural and Entomological Science
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    • v.37 no.2
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    • pp.172-175
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    • 1995
  • To develope a liquid culture media for the mass culture of Beauveria bassiana blastospore, wheat bran and soybean cake were selected as a carbon and nitrogen source, respectively. The composition and final concentration of wheat bran and soybean cake in liquid culture media were determined by the growth of B. bassiana blastospore. The results showed that the growth of B. bassiana blastospore was effective in the rate of 3 wheat bran: 2 soybean cake and in 5% of final concentration of the liquid culture media, suggesting that the liquid culture media using wheat bran and soybean cake are available.

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PSYCHO-PHYSICAL ANALYSIS OF PAPER AND A NEW DESIGN CONCEPT OF PAPER MEDIA FOR THE NEXT CENTURY

  • Fumihiko ONABE
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 1999.11b
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    • pp.209-213
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    • 1999
  • In the society of the 21\ulcorner century under multiphase media conditions, the rapidly glowing electronic media will replace the conventional paper media in a variety of areas. However, if human being still has an affinity for paper media and an instinct for hardcopy from electronic-based text or image, the new market will be created for the paper industry. To what extent the consumer choses paper media for output will depend upon the availability of functions of paper media appealing to human senses; i.e., "sensory functions of paper". As a whole, on-demand type personal as well as business communications will increase in the next century and this trend will lead certainly to a rapidly expanding "contents hardcopy market". The technological progress of the paper industry in the 21\ulcorner century depends upon the market needs for higher products quality and higher efficiency of manufacturing process as well as an endeavour to overcome constraints from forest resource, energy, and environmental issues. Under the conditions with above constraints, the paper media will be polarized into two categories; (1)paper for higher image reproduction capability for original image or text and (2)paper for lower reproduction but with higher appeals for human senses. To cope with these trends, psycho-physical analysis and a sensory engineering approach for developing new paper media is vitally required. Also newly emerged roles of paper physics in the multimedia age is pointed out associated with sensory functions of paper that are not well-understood so far.

Trend Analysis of Informal Science Education Research in Korea: Focus on Educational Perspectives (국내 비형식 과학 교육 연구 경향 분석: 교육적 관점을 중심으로)

  • Jang, Eunjin
    • Journal of Science Education
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    • v.42 no.3
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    • pp.293-307
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    • 2018
  • The purpose of this study is to search for the direction of informal science education research by analyzing them from the educational perspectives of informal science education. For this purpose, this study analyzed 144 journals related to informal science education that have been issued in the last six years in terms of educational perspectives. As a result, this study found a tendency for studies to be biased towards a few educational perspectives such as scientific practice participation, emotional enhancement, and understanding of knowledge, while studies on the understanding of nature of science have been conducted in a few cases. This tendency was also found in the analysis of the detailed media in each field, however, the biased educational perspectives varied from media to media. Therefore, in order to understand various aspects of informal science education itself, which is not a subsidy of formal school education, and to deeply understand what each media is trying to pursue, it should be done with various educational perspectives in each media study.

Social Media Marketing and Brand Loyalty: The Role of Brand Trust

  • PUSPANINGRUM, Astrid
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.12
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    • pp.951-958
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    • 2020
  • This study examines the relationship between social media marketing and brand loyalty through brand trust. Respondents were drawn from customers of McDonald's, Malang City, East Java Province, Indonesia. For this study, 130 questionnaires were distributed and data were analyzed using the Structure Equation Model (SEM) version 22 of the AMOS (Analysis of Moment Structure) application. The results showed that social media marketing had an impact on increasing McDonald's brand trust and brand loyalty. Brand trust influences brand loyalty and brand trust can mediate the influence of social media marketing on McDonald's brand loyalty. The findings prove that brand trust can mediate the effect of social media marketing on customer loyalty to McDonald's brand. These results can be explained by the fact that marketing strategies through social media marketing, such as making it easy for customers to get information related to McDonald's on social media, can contribute to customer trust and that trust is formed because McDonald's always pays attention to the quality of the products offered. Brand trust can mediate the influence of social media marketing on customer loyalty to McDonald's brand. This means that information related to McDonald's on social media is proportional to the quality of the product offered.

Effects of Soy Protein Hydrolysates Prepared by Varying Subcritical Media on the Physicochemical Properties of Pork Patties

  • Lee, Yun-Kyung;Ko, Bo-Bae;Davaatseren, Munkhtugs;Hong, Geun-Pyo
    • Food Science of Animal Resources
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    • v.36 no.1
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    • pp.8-13
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    • 2016
  • This study investigated the effect of soy protein hydrolysates (SPH) prepared by varying subcritical media on the physicochemical properties of pork patties. For resource of SPH, two different soybean species (Glycine max Merr.) of Daewonkong (DWK) and Saedanbaek (SDB) were selected. SPH was prepared by subcritical processing at 190℃ and 25 MPa under three different of media (water, 20% ethanol and 50% ethanol). Solubility and free amino group content revealed that water was better to yield larger amount of SPH than ethanol/water mixtures, regardless of species. Molecular weight (Mw) distribution of SPH was also similar between two species, while slightly different Mw distribution was obtained by subcritical media. For pork patty application, 50% ethanol treatment showed clear red color comparing to control after 14 d of storage. In addition, ethanol treatment had better oxidative stability than control and water treatment based on thiobarbituric acid-reactive substances (TBARS) analysis. For eating quality, although 20% ethanol treatment in SDB showed slightly higher cooking loss than control, generally addition of SPH did not affect the water-binding properties and hardness of pork patties. Consequently, the present study indicated that 50% ethanol was the best subcritical media to produce SPH possessing antioxidant activity, and the SPH produced from DWK exhibited better antioxidant activity than that produced SDB.

Promoting Word-of-Mouth communication: The moderating role of leisure sport social media

  • KIM, Min-Soo;Kim, Miok;HUR, Seung-Eun;SEO, Myung-Seok;SEO, Won-Jae
    • Journal of Distribution Science
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    • v.18 no.4
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    • pp.61-72
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    • 2020
  • Purpose: Usage of leisure-sport social media would lengthen and strengthen the effects of positive event experiences on WOM behavior. This study is to examine the extent to which leisure sport social media use has the moderating potential to enhance the direction of the relationship between post-event emotions and event WOM behavior. Research design, data and methodology: A running event located in a major metropolitan area in the southeastern United States was selected. Participants of the running events completed the survey. Descriptive analysis and correlations between primary variables of interest were conducted. To examine interactions within the context of moderated regression, a hierarchical regression analysis was employed. Results: The results confirmed direct effects of a sense of achievement and event satisfaction on event WOM intention, supporting H 1 and H2. In specific, result revealed that the amount of time spending on social media for running content moderated the effect of a sense of achievement on event WOM intention, supporting H3, however, H4 was rejected. Conclusions: There are managerial implications of these results, particularly which pertain to how organizers may be able to use perceived benefits (i.e., a sense of achievement and satisfaction) and social media to increase positive WOM intention.

3D Gaze Estimation and Interaction Technique (3차원 시선 추출 및 상호작용 기법)

  • Ki, Jeong-Seok;Jeon, Kyeong-Won;Kim, Sung-Kyu;Sohn, Kwang-Hoon;Kwon, Yong-Moo
    • Journal of Broadcast Engineering
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    • v.11 no.4 s.33
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    • pp.431-440
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    • 2006
  • There are several researches on 2D gaze tracking techniques for the 2D screen for the Human-Computer Interaction. However, the researches for the gaze-based interaction to the stereo images or contents are not reported. The 3D display techniques are emerging now for the reality service. Moreover, the 3D interaction techniques are much more needed in the 3D contents service environments. This paper addresses gaze-based 3D interaction techniques on stereo display, such as parallax barrier or lenticular stereo display. This paper presents our researches on 3D gaze estimation and gaze-based interaction to stereo display.

Development of the Water-borne Separation Media Polymer for a Moving Historic Sites (자기분산형 수용성 에폭시를 이용한 유구 이전용 박리제의 개발)

  • Han, Won-Sik;Hong, Tae-Kee;Lim, Sung-Jin;Wi, Koang-Chul
    • Journal of Conservation Science
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    • v.25 no.2
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    • pp.171-178
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    • 2009
  • When we considered the superior ability of the semi-water soluble urethane 1st transcription and final epoxy products, the stability for moving historic sites depend on physical properties and the peel off state of separation media. In this paper, we synthesised three type of water-borne epoxy solution without using a surfactant, and investigated the peel off state, physical properties, and the state between urethane surface and epoxy surface after exfoliation. The life time of water-borne separation media is over the 60 days. When it is used the 30% solution of water-borne separation media, it made good separation of urethane pre-products surface and epoxy final product surface and no color change. The separation tension pressure is about 15~50 kg/$cm^2$ and there is no surface whitewash phenomenon. We suggest that this water-borne epoxy will be best material as separation media of low viscosity type.

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