• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제4권4호
• /
• pp.452-474
• /
• 2010

Formidable growth of Internet technologies has revealed challenging issues about its scale and performance evaluation. Modeling and simulation play a central role in the evaluation of the behavior and performance of the large-scale network systems. Large numbers of nodes affect simulation performance, simulation execution time and scalability in a weighty manner. Most of the existing simulators have numerous problems such as size, lack of system theoretic approach and complexity of modeled network. In this work, a scalable discrete-event modeling approach is described for studying networks' scalability and performance traits. Key fundamental attributes of Internet and its protocols are incorporated into a set of simulation models developed using the Discrete Event System Specification (DEVS) approach. Large-scale network models are simulated and evaluated to show the benefits of the developed network models and approaches.

• 한국축산식품학회:학술대회논문집
• /
• 한국축산식품학회 2004년도 정기총회 및 제33차 춘계 학술대회
• /
• pp.345-348
• /
• 2004

This study was carried out to find the physico-chemical attributes for liquid-type yogurt with Lactobacillus casei 911LC during 72 hr fermentation at $37^{\circ}C$. The pH decreased up to 32 hr and plauteaued thereafter. The growth of lactic acid bacteria sharply increased with $2.0{\times}\;10^6\;cfu/mL$ up to 40 hr of fermentation and slowly increased thereafter. The free amino acids produced during the fermentation reached the maximum value at 40 hr and gradually decreased thereafter. The present data showed that the range of optimum fermentation time for liquid-type yogurt using Lactobacillus casei 00692 was from 40 to 44 hr.

• 대한안전경영과학회지
• /
• 제12권3호
• /
• pp.333-339
• /
• 2010

Data mining is the process of finding and analyzing data from a big database and summarizing it into useful information for a decision-making. A variety of data mining techniques have been being used for wide range of industries. One application of those is especially so for gathering meaningful information from process data in manufacturing factories for quality improvement. The purpose of this paper is to provide a methodology to improve manufacturing quality of fuel tanks which are auto-parts. The methodology is to analyse influential attributes and establish a model for optimal manufacturing condition of fuel tanks to improve the quality using decision tree, association rule, and feature selection.

• International Journal of Advanced Culture Technology
• /
• 제9권2호
• /
• pp.1-9
• /
• 2021

Focusing on China's profound historical/cultural heritage, as well as its favorable environment for the expansion of cultural and creative industries (CCIs), this paper considers the unique attributes of Chinese museum cultural and creative products (MCCPs) from the angle of cross-border development, and summarizes the main forms and effects of cross-border innovation in relation to Chinese MCCPs. It also examines the chief problems of Chinese MCCPs' cross-border growth at three levels - the national policy system, product development, and design and marketing - to explore countermeasures and suggestions for cross-border novelties and the advancement of products.

• 정보보호학회논문지
• /
• 제9권3호
• /
• pp.53-62
• /
• 1999

인터넷의 고속성장은 많은 유용한 정보를 공유할수 있는 토대를 제공하고 있다 방 대한 양의 정 보는 빠른 시간안에 정보를 처리할 수 있는 능력을 요구하게 되었고 이러한 요구에 부응하 여 메타 정보 체계가 나타나게 되었다. 메타 정보 체계는 원하는 정보를 정확하게 빠르게 검색하는 기능 을 제공하고 있으나 그 반면에 정보보호 측면에서 대책을 제공하고 있지 않으므로 심각한 문제를 발생 시킬수 있다. 본 논문에서는 이러한 문제점을 해결하기 위해 메타 정보 체계를 위한 사용자 접속 제어에 관한 정보보 호속성을 제안한다.

• 동아시아경상학회지
• /
• 제12권2호
• /
• pp.29-34
• /
• 2024

Purpose: The primary objective of this study was to examine the influence of economic democratization on economic development from diverse perspectives. Research design, Data methodology: Justification of the qualitative literature methods used in this study is essential, as extensive descriptions, justifications, and explanations of the methods used allow researchers to increase the reliability of their studies for specific or specified audiences. Initially, the concept and principal attributes of economic democratization were scrutinized, followed by an exploration of its manifold effects on economic development. Results: Consequently, this study facilitated a comprehensive comprehension of how economic democratization fosters economic growth and advancement in contemporary society. Additionally, the study deliberated on the constraints and hurdles of economic democratization, proposing policy recommendations for future mitigation. Conclusion: In conclusion, this study is anticipated to furnish foundational data for regional economic development to both academia and policymakers. It achieves this by thoroughly evaluating the impact of economic democratization on economic development and delving into the dynamic interaction between democracy and economic progress.

• 경영정보학연구
• /
• 제14권1호
• /
• pp.21-35
• /
• 2012

최근 트위터와 페이스북 등의 소셜 네트워크 서비스 (SNS)가 전세계적으로 급성장하고 있다. 특히 트위터는 팔로잉이나 리트윗 기능 등을 이용한 정보의 확산이 용이하므로, 새로운 홍보 마케팅 수단으로 각광받고 있다. 본 연구에서는 기업 트위터 이용자를 상호작용 형태별로 분류해서 그룹별 영향력 정도와 프로파일을 분석하고, 트위터의 콘텐츠를 속성별로 분류해서 확산 정도와 내용을 심층적으로 분석함으로써, 효과적인 기업 홍보 마케팅용 트위터 활용 방안을 제안하였다. 국내 대표 IT 기업인 K사의 홍보 마케팅용 트위터 계정을 구독하고 있는 약 2,800여명의 팔로어들을 대상으로 연구를 진행한 결과, 기업 트위터 이용자들은 구독 콘텐츠의 확산에 다소 소극적인 것을 알 수 있었다. 또한 리트윗에 참여하는 확산 그룹과 비구독 확산 그룹의 특성을 분석한 결과, 10,000명 이상의 많은 팔로어를 보유한 이 용자보다는 1,000명 이하의 작은 네트워크를 가진 이용자들의 확산 기여도가 높았다. 트위터 콘텐츠의 속성별로 발행 건수 대비 리트윗 되는 비율을 분석한 결과에서는 채용, 이벤트, IT 정보, 일반홍보의 순서로 높게 나타났다. 결론에서는 연구 결과에 기반한 실무적인 제언이 심층적으로 논의 되었다.

• Journal of Animal Science and Technology
• /
• 제62권5호
• /
• pp.730-740
• /
• 2020

This feeding trial was conducted to investigate the effects of Mentha arvensis (MA) and Geranium thunbergii (GT) in drinking water on physicochemical attributes, sensory qualities, proximate analysis and oxidative stability of broiler leg meat. One hundred and twenty broiler chicks were assigned to 1 of 4 dietary treatments for 5 weeks. The dietary treatments were 1) control, 2) T1 (0.1% 1 MA:1 GT), 3) T2 (0.1% 1 MA:4 GT), 4) T3 (0.1% 4 MA: 1 GT). The water holding capacity and cooking loss were improved (p < 0.05) in T2 and T3. The flavor, texture and acceptability of leg meat by consumers were significantly increased in T2 relative to the control (p < 0.05). The crude protein content was increased in T3 while the crude fat decreased in T2 (p < 0.05). Moreover, broilers supplemented with plant extracts had the lowest leg meat TBARS (thiobarbituric acid reactive substances) values after 2 weeks of storage as compared with the control. Total phenolic contents and 1-1-diphenyl 2 picrylhydrazyl (DPPH) activity were also better in the T2 group (p < 0.05) compared with the control, whereas 2,2-Azinobis-3 ethytlbenzothiazoline-6-sulfonic acid (ABTS⁺) remained unaffected. Overall, these results demonstrate that broiler drinking water with the inclusion of plant extract combination can be used to enhance the oxidative stability, shelf life and quality characteristics of broiler leg meat without compromising the growth performance.

• 대한간호학회지
• /
• 제32권2호
• /
• pp.155-164
• /
• 2002

With the dynamically changing environment of society, managing change is the vital element of organizations's survival and growth. Health care organizations have expended enormous resources to restructure patient care delivery. Despite the growing literature describing these organizational innovations, there is a paucity of credible data that reflects systematic measurement and evaluation of such changes. This study examined the nurses' psychological response toward the work process redesign, newly introduced by the nursing department in a acute care hospital. The aim of the study was to figure out how nurses's general perception of change and perceived attributes of change affected their acceptance of change during the organizational transition. This was descriptive- correlational. The sample for the study included 50 head nurses and 135 staff nurses. Data was analyzed using SPSS PC+, version 10.0. The major findings of the study were as follows: First, the mean score of the perception of change was 71.2(SD=13.8) with the range of 0-100, which means nurses generally perceived change positively. There were significant differences in perception of change by gender and education level. Head nurses perceived change more positively than staff nurses. The higher education level showed the more positive view of change. Second, among the perceived attributes of change, trialability had the highest mean score, which means nurses perceived the change more positively if it is testable on a limited basis. Relative advantage was perceived the most negatively. Finally, factors influencing the acceptability of the work-process redesign were perceived comparability, complexity, relative advantage, and observability, which accounted for 43.7% of the variance in the acceptability of change. This study evaluated the preliminary effects of the nursing process for reengineering, focusing on nurses' acceptability towards change. The usefulness of this research study was to determine the factors influencing acceptance of organizational members during transitional periods of change and to suggest effective strategies for increasing adoption as well as for decreasing resistance to change.

• 통상정보연구
• /
• 제16권3호
• /
• pp.307-329
• /
• 2014

의료관광은 의료관광객의 응급하지 않은 의료행위에 대해 해외 의료서비스에 접근할 수 있도록 의료서비스와 관광을 함께 연계하는 것을 의미한다. 전세계적으로 의료관광객의 수가 상당한 수준으로 증가함에 따라 의료관광에 대한 관심은 연구자, 정책 입안자, 그리고 매스 미디어에 이르기까지 폭넓게 관심을 받고 있다. 그러나 의료관광에 대한 체계적이며 세부적인 연구노력은 현재 매우 미진하고 제한적인 편이다. 본 연구에서는 중국 의료관광객이 목적지를 선택할 때 선호하는 의료속성을 파악 및 분석하였다. 중국 의료관광객의 중요 선호속성의 이상적 조합을 통해 한국으로의 중국 의료관광객을 유치를 증진할 수 있을 것이다. 본 연구에서는 컨조인트 분석을 통하여 의료관광 중요 선택속성조합을 도출하였으며 연구결과, 목적지 선택에 있어서 의료 기술의 경쟁력이 가장 중요한 것을 파악되었다. 선택속성조합의 하위요소에 있어서는 국제의료인증이 중요한 사항으로 입증되었다. 본 연구를 통하여 의료기관과 여행에이전시 등 관련 기업에게 마케팅활동을 위한 통찰력을 제공할 것으로 판단된다. 또한 의료관광객이 선호하는 브랜드와 그에 따른 선호요소를 기존의 의료관광목적지 분석연구와 연계하여 좀 더 체계적인 의료관광 상품의 개발과 한국의료관광의 역량을 강화하는데 본 연구가 일조할 것으로 판단된다.