• The Journal of Information Systems
• /
• v.27 no.3
• /
• pp.103-121
• /
• 2018

Purpose As web 2.0 has taken root in the Internet environment, people began to create specific values to produce and disseminate contents on their own. In order to emphasize the personalized media attributes, the concept of self media was derived. In this paradigm shift, self media has emerged that succeeded in commercializing themselves in social media. Taking advantage of the influence of self media will have a tremendous positive impact on management activities such as marketing strategy, brand promotion, customer retention, and profit growth. This study examines the factors affecting the loyalty of self media in Korea and China because the studies in the area of selfmedia is not enough. Design/methodology/approach This study analyzed what factors influenced the loyalty of self-media in terms of Korea-China comparison. The research model was proposed on the basis of previous research papers. Content value, interactivity, ease of access, self-congruity, sympathy, and reputation were used as independent variables. Trust and satisfaction are used as mediating variables, nationality as moderator variables, and loyalty to self-media as a dependent variable. Results As a result, it was found that all independent variables directly influence the loyalty of self-media except interactivity, and interactivity indirectly influence loyalty through trust and satisfaction. There was a moderating effect of nationality between satisfaction and loyalty, but was not a moderating effect between trust and loyalty.

• Journal of Korean Society of Water and Wastewater
• /
• v.23 no.2
• /
• pp.215-222
• /
• 2009

This study compares the performance of the filters with various media in pretreatment of seawater desalination by reverse osmosis. For this purpose, Masan bay seawater is used as raw water. The filter performance is evaluated by the filtrate quality and the head loss development. Five media is selected in this study: anthracite, $Filtralite^{(R)}$, sand, Pumice, $AFM^{(R)}$. These media are used in combination for dual media filter and alone for mono media filter. The comparison results show that NC0.8-1.6 is the best $Filtralite^{(R)}$. The dual media filter of NC0.8-1.6 and sand outperformed other filters in particle removal. The dual media filter of anthracite and sand showed good performance in organic removal. The mono media filter of Pumice produced the similar filtrate quality as the mono media filter of sand although the effective size of Pumice is considerably greater than that of sand. Due to big size, head loss development is maintained slow in the filtration of Pumice.

• Knowledge Management Research
• /
• v.19 no.2
• /
• pp.69-90
• /
• 2018

The purpose of this study is to investigate the effect of message framing of social media contents on social media credibility and behavioral intention and the role of customers' gourmet restaurant involvement. In this study message framing is divided into regulatory focus and message sidedness and used experimental stimulus composed of $2{\times}2$ factorial design. Also investigated the effect into the social media credibility and behavioral intention. A total of 560 valid samples were analyzed. According to the results, it was confirmed that stimuli 'two-sided / prevention' and 'one-side / promotion' framing were the most influential framing on social media credibility and behavioral intention and the social media credibility has significant effect on the behavioral intention. In this study the effect of message framing which was not widely used in the hospitality industry research was confirmed. Also the usefulness of regulatory focus and message sidedness were identified in the various research in hospitality management.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.20 no.43
• /
• pp.91-97
• /
• 1997

The objective of a traffic management system is to promote safe driving, low pollution, short travel time, and optimized traffic flow by naturally distributing the flow of traffic through the use of suitable telecommunications media. Such traffic management systems will be improved by integrating dynamic traffic data and two-way communication media because cars can work as sensors. The purpose of this paper is to help organizations trying to select the correct telecommunications media for minimal-cost investment options without loss of functionality. The wireless communications for an intelligent transportation system (ITS) are introduced in this paper. We describe which kind of telecommunication media are suitable. FM broadcast type media or cellular phone can be recommended to provide real time traffic and roadway conditions in the first stage of ITS, because existing broadcast base station or cellular network facilities can be used. It is expected that cellular radio network or satellites are used for communication. Finally, the strategy and deployment plan of an ITS are described based on selections of telecommunication media in Korea.

• Tribology and Lubricants
• /
• v.24 no.2
• /
• pp.77-81
• /
• 2008

In this work, ramp loading scratch method was used to evaluate the scratch characteristics of HDD media and ZnO thin films. Commercially available HDD media and ZnO thin films grown on silicon(100) substrate by sol-gel method were used. As for the ZnO films, the effects of annealing temperature after the film deposition process were also investigated. A custom built scratch tester was used to scratch the specimen under a ramp loading condition. The scratch track formed by ramp loading was measured by optical microscope and Atomic Force Microscopy (AFM). The wear depth and width were used to assess the scratch characteristics of the HDD Media and ZnO thin films. The results showed that ZnO film annealed at $800^{\circ}C$ had the best scratch resistance property. Also, the HDD media showed overall better scratch resistance than the ZnO films.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.37 no.2
• /
• pp.58-73
• /
• 2024

Objectives : This study was designed to review and analyze domestic research trends of Korean medicine treatment on otitis media, and present data for further research and treatment of otitis media. Methods : Two researchers used six search engines to search for papers on Korean medicine treatment for otitis media published from January 1, 2000 to December 31, 2023. A total of 16 papers were searched, and bibliographic information, main and accompanying symptoms, treatment period, treatment method, evaluation scale, and treatment results of each study were analyzed. Scottish Intercollegiate Guidelines Network was used to evaluate the evidence level. Results : The most common otitis media symptom was hearing loss (12 times). The most frequently mentioned herbs were Ledebouriella seseloides (22 times) and Angelica gigas (20 times), which are the ingredients of the most commonly used prescriptions, Hyunggyeyungyo-tang (5 times), Takrisodok-yeum (4 times), and Bojungikgi-tang (3 times). All the clinical trial papers were conducted on Kamihyunggyeyungyo-tang, which showed improvement in otitis media-related indicators. The most frequently mentioned meridians were the Triple Energizer (44 times), Clinical trials were conducted on the Triple Energizer, the Gall Bladder, and the Small Intestines meridians. The most frequently used acupoints were SI19 (10 times), TE21 (9 times), TE17 (9 times). In clinical trials, acupuncture treatment with TE05, GB15, TE06, SI05, GB38, and KI02 showed a significant improvement in otitis media symptoms. Conclusions : It is believed that more efficient otitis media treatment and follow-up research can be performed by using the above-mentioned research results.

• Journal of Magnetics
• /
• v.20 no.3
• /
• pp.302-307
• /
• 2015

The purpose of the study was to identify how isotope and magnetic resonance imaging (MRI) contrast media impact on noise to computed tomography (CT) examination. For the study, divide the phantoms to two groups: 1) saline, saline + different kinds of contrast agent without $^{99m}Tc$ administration; 2) $^{99m}Tc$ administration: saline, saline + different kinds of contrast agent with $^{99m}Tc$ administration. CT contrast agent was used for Iopamidol$^{(R)}$ and Dotarem. And MRI contrast agent was used for Primovist$^{(R)}$ and Gadovist$^{(R)}$. To obtain an image, we used CT scanner. With an obtained image, we set the $1cm^2$ region of interest in the middle of bottle to measure the noise and CT number. As a result, there was no difference in CT number before and after inserting $^{99m}Tc$ into all contrast media including Normal Saline. However, when it comes to Noise, there was a difference before and after inserting $^{99m}Tc$ into every contrast media except MRI contrast media such as Primovist$^{(R)}$ and Gadovist$^{(R)}$.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 2006.04a
• /
• pp.381-388
• /
• 2006

A porous medium is composed of solids, fluids, and gas which have different physical and chemical properties. In addition, these constituents have a relative velocity between each other. So far, in order to analyze porous media using finite element method, Lagrangian or Eulerian method has been used. However, the numerical analyses for porous media have a defect that the methods do not describe the movements of constituents. In this paper, numerical analysis for unsaturated porous media was performed in frame of ALE method which has advantages of Lagrangian and Eulerian. Namely, the Lagrangian description was used in solid phase, and the Eulerian description was used in fluid or gas phase in a porous medium Then the relationship between each other was controlled by the convective term in ALE method. Finally, the numerical results of ALE were compared with tile results of Lagrangian analysis.

• Journal of Information Science Theory and Practice
• /
• v.10 no.2
• /
• pp.1-16
• /
• 2022

This study aimed to understand young adults' attitudes concerning news and news resources they consumed, and how they encounter the fake news phenomenon. A qualitative approach was used with semi-structured interviews with 41 young adults (aged 20-30) in Tehran, Iran. Findings revealed that about half of the participants favored social media, and a smaller group used traditional media and only a few maintained that traditional and modern media should be used together. News quality was considered to be lower on social media than in traditional news sources. Furthermore, young adults usually followed the news related to the issues which had impact on their daily life, and they typically tended to share news. To detect fake news, they checked several media to compare the information; and profiteering and attracting audiences' attention were the most important reasons for the existence of fake news. This is the first qualitative study for understanding news consumption behavior of young adults in a politicized society.

• Journal of Environmental Health Sciences
• /
• v.23 no.4
• /
• pp.16-20
• /
• 1997

The purpose of this study is to develop of porous media for water treatment. It was made of porous media which was sinteringed on a comparative low temperature 600$\circ$C, was annexed slag (media-s) and humus soil (media-h) with material, only material kaolinite(media-k). In order to examine the characteristics of physical-chemical were used to sem, x-ray. The results of study are given porous size on media-h which was able to water treatment.