• 한국멀티미디어학회논문지
• /
• 제9권6호
• /
• pp.720-727
• /
• 2006

In this paper, we propose a method which allows the SuperSQL query processor to share as much code as possible among various, generators, each of which is responsible for the output of a certain medium. SuperSQL is an enhanced query-processing system that converts database records into a variety of formats such as XML, HTML, PDF and etc. However, the existing SuperSQL media generator would require creation of a different processor for each medium, causing duplicated development cost. This research makes three main contributions: First, it analyzes the structures of various media, examining any possibility of integration based on their common structure. Second, it also facilitates the addition of a new output media generator by separating constructors and decorators from each medium. Last, it provides an integrated user interface to each media by method of the Media Abstraction Table Concept. We also show the performance and feasibility of our system using experimental results.

• 유통과학연구
• /
• 제20권5호
• /
• pp.97-104
• /
• 2022

Purpose: This study intends to analyze the effect of competitor pressure and customer pressure on social media technology use and the value of the business network and their implications for marketing performance. Research design, and methodology: A constructed questionnaire was conducted with 90 respondents of MSME's Business Actors in South Sulawesi Partial Least Square (PLS) analysis was applied to analyze and verify all the data. Results: Competitor pressure has a significant effect on social media technology, Competitor pressure has a positive and significant impact on business network accentuation. Customer pressure has a positive and significant impact on social media technology. Customer pressure has a positive and significant impact on business network accentuation. Social media technology utilization has a significant impact on Business Network Accentuation. Social media technology utilization has a significant effect on Marketing Performance. Business Network has a significant effect on Marketing Performance. Conclusions: It is an important thing for MSMEs to increase the use of social media technology to meet the demands of consumers and pressure from competitors. The use of social media technology must be implemented effectively and efficiently so that it can be utilized as an effective tool for distributing the value that own by a company to improve the company's marketing performance.

• Membrane and Water Treatment
• /
• 제11권3호
• /
• pp.231-235
• /
• 2020

Industrialization and modern developments have led to an influx of toxic heavy metals into the aquatic environment, and the accumulation of heavy metals has serious adverse effects on humans. Among the various heavy metal treatment methods, adsorption is very useful and frequently used. Plastic materials, such as polypropylene and polyethylene, have been widely used as filter media due to their mechanical and chemical stability. However, the surface of plastic material is inert and therefore the adsorption capability of heavy metals is very limited. In this study, granular media and fiber media composed of polypropylene and polyethylene are used, and the surface modification was conducted in order to increase adsorption capability toward heavy metals. Oxygen plasma generated hydroxyl groups on the surface of the media to activate the surface, and then acrylic acid was synthesized on the surface. The grafted carboxyl group was confirmed by FT-IR and SEM. Heavy metal adsorption capability of pristine and surface modified adsorbents was also evaluated. Overall, heavy metal adsorption capability was increased by surface modification due to electrostatic interaction between the carboxyl groups and heavy metal ions. Fibrous PP/PE showed lower improvement compared to granular PP media because pore blockage occurred by the surface modification step, thereby inhibiting mass transfer.

• 한국작물학회지
• /
• 제46권2호
• /
• pp.125-129
• /
• 2001

Eight vermiculite-based root media prepared with addition of complete fertilizer (2 g/L; N-$P_2$$O_5$-$K_2$O, 10-10-14) for potatoes (Solanum tuberosum L.) and a commercial root medium were evaluated in 2000 to develop the root media suitable for potato plug seedling production. The eight media consisted of various ratios of vermiculite, perlite, peatmoss, and compost. In addition, four rates (0, 1, 2, or 4 g/L) of the complex fertilizer for potato were added to a root medium (70% vermiculite, 10% perlite, 10% peat moss, and 10% compost by volume) to determine the optimum addition rate of the complex fertilizer for plug seedlings. Compost addition to the media increased plant height, the number of leaves per plant, and top and root fresh weight of 15-day old plug seedlings. The seedlings raised in root media containing compost produced significantly higher total tuber yield. Addition of the complex fertilizer to root media enhanced seedling growth and increased the number of tubers per plant and tuber yields. The results suggest that root media containing 50% vermiculite, 0 to 20% peat moss, 10% perlite, 20 to 40% compost, and 2 g/L complex fertilizer for potato appear suitable for potato plug seedling production.

• 한국균학회지
• /
• 제49권4호
• /
• pp.525-530
• /
• 2021

The cultivation in sawdust media, mushroom productivity, and fruiting body characteristics of Lentinula edodes strains NIFoS 2778 and NIFoS 3363 were compared according to the inoculation conditions. The cultivation period was 5% shorter when liquid spawn was used. Fruiting bodies were induced after 113 days of incubation on media inoculated with liquid spawn, and the cultivation period was 119 days on media inoculated with solid spawn. Mushroom productivity of NIFoS 2778 was the highest (661.4 g) when 36 mL of liquid spawn was used. For NIFoS 3363, mushroom production was higher under liquid inoculation conditions when the same amount of liquid and solid spawns were used. The mushroom characteristics of the two strains were not significantly different, except for gill width and stipe diameter.

• Genomics & Informatics
• /
• 제18권2호
• /
• pp.16.1-16.5
• /
• 2020

There has been a dramatic increase in the popularity of utilizing social media data for research purposes within the biomedical community. In PubMed alone, there have been nearly 2,500 publication entries since 2014 that deal with analyzing social media data from Twitter and Reddit. However, the vast majority of those works do not share their code or data for replicating their studies. With minimal exceptions, the few that do, place the burden on the researcher to figure out how to fetch the data, how to best format their data, and how to create automatic and manual annotations on the acquired data. In order to address this pressing issue, we introduce the Social Media Mining Toolkit (SMMT), a suite of tools aimed to encapsulate the cumbersome details of acquiring, preprocessing, annotating and standardizing social media data. The purpose of our toolkit is for researchers to focus on answering research questions, and not the technical aspects of using social media data. By using a standard toolkit, researchers will be able to acquire, use, and release data in a consistent way that is transparent for everybody using the toolkit, hence, simplifying research reproducibility and accessibility in the social media domain.

• 한국비블리아학회지
• /
• 제15권2호
• /
• pp.49-70
• /
• 2004

본 연구는 출판미디어의 메타 데이터적 개발과 보급동향을 파악하기 위하여, 종이책과 전자출판물로 나누어서 현황을 지표위주로 분석하였다. 더불어, 현황분석에서 도출되는 문제점을 통해 출판미디어의 데이터 개발과 보급에 어떠한 전망적 시각을 부여할 것인지를 논의한 연구이다. 기존의 종이책과 새로운 전자출판물은 인터넷으로 표방되는 디지털 미디어 시대에 새로운 융합 미디어로 그 범위를 넓혀가고 있다. 수용의 유비쿼터스 실현을 위한 융합미디어로의 변화는 기존의 종이책이 갖는 형질을 물려받는 유전의 속성을 기저로 진화한다는 논거를 통해, 종이책과 전자출판물 그리고 융합미디어로서의 디지털 출판물의 양적 확장의 전망을, 보급에 앞서 해결해야 할 솔루션 문제와 함께 논의하고 있다.

• 한국정보과학회:학술대회논문집
• /
• 한국정보과학회 2007년도 가을 학술발표논문집 Vol.34 No.2 (C)
• /
• pp.258-262
• /
• 2007

최근 디지털 사진 시장은 블로그와 UCC 라는 트랜드와 함께 더욱 확대되고 있다. 이러한 시장 환경에서 디지털 카메라는 디지털 사진의 장점과 기기 가격의 하락으로 널리 보급되고 있다. 디지털 카메라의 보급에 따라 촬영된 방대한 사진자료의 검색과 관리의 중요성이 부각되고 있으며 이를 활용하기 위해 다방면에서 많은 연구가 진행되고 있다. 하지만 급속도로 확장된 디지털 카메라 시장에서 사용자에 대한 사용 패턴 조사와 분석은 미비한 실정이다. 본 논문에서는 디지털 카메라 시장 업계의 동향과 하드웨어적인 측면을 조사하고, 온라인 설문을 통하여 사용자의 사용 패턴을 조사하여 분석하였다. 총 34 명을 대상으로 디지털 카메라의 사용 패턴을 조사하였다. 저장 매체를 설문하는 조사에서는 응답자의 82%에 달하는 대부분의 사용자가 HDD를 주된 저장매체로 사용하고 있었고 CD나 DVD는 12%, 인화하여 보관하는 경우는 6%에 그쳤다. 보관되고 있는 사진의 용량을 조사하는 설문에서는 약 35%에 해당하는 사용자들의 10GB에 달하는 사진을 보유하고 있었고, 주로 찍는 화소로는 약 41%의 사용자가 300만 화소로 촬영하고 있었다. 이러한 사용자 패턴 분석과 설문 자료 결과를 통하여 사진 관련 커뮤니티나 포털 사이트를 기획하거나 새로운 인터페이스의 디지털 카메라를 설계하는데 기여할 수 있다.

• 한국경영과학회지
• /
• 제38권3호
• /
• pp.71-86
• /
• 2013

This research explores the question how interactions between customer and firm affect firm growth. To test suggested hypotheses, this study collects data on social commerce industry in Korea during the period from the beginning of social commerce industry in Korea, May 2010, to March 2012, and investigates the effect of social media on the growth of social commerce firms. We suggest two hypotheses in this study. First, as web traffic inflow through social media into a focal social commerce increases, the growth rate of the focal social commerce increases. Second, the more diverse social media channel through which web traffic inflows into a focal social commerce, the weaker the positive effect of web traffic inflow on the growth rate of the focal social commerce. Analysis of data shows that inflow through social media is positively related to the growth of social commerce. In addition, our analysis shows that inflow channel diversity weakens the positive relationship between web traffic inflow through social media and growth rate of social commerce firms. These results suggest that firms need to concentrate on few social media in order to attract customers. The study contributes to understanding how interaction between firms and customers influences the growth of the firm.

• 한국정보시스템학회지:정보시스템연구
• /
• 제30권3호
• /
• pp.113-135
• /
• 2021

Purpose This study aims to measure the effects of media literacy education through the social science method and find out the impact of media literacy education on digital citizenship in Korea and its implications for the development of democracy. Design/methodology/approach This study used an independent t-test to analyze relativeness between media literacy education and media literacy factors. We also adopted an independent t-test to investigate media literacy influence on digital citizenship. Furthermore, we found out age differences using 'the one-way analysis of variance (the one-way ANOVA)'. Findings We have found four media literacy factors, MC, CT, C&P, R&R, have been significantly affected by media literacy education. We have also pulled out three digital citizenship factors, IPA, TS, and CP, involved in media literacy education. Moreover, we have analyzed our survey by different age groups. The lower the age, the higher the TS. CP was highest among those from 30 to 59, followed by those under the 30s.