• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.6
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• pp.81-86
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• 2011

In one of the most impacting schemes proposed to address the TCP throughput problem over network coding, the network coding layer sends an acknowledgement if an innovative linear combination is received, even when a new packet is not decoded. Although this scheme is very effective, its implementation requires a limit on the coding window size. This limitation causes low TCP throughput in the presence of packet reordering. We argue that a TCP variant detecting a packet loss relying only on timers is effective in dealing with the packet reordering problem in network coding environments as well. Also we propose a new network coding layer to support such a TCP variant. Simulation results for a 2-path environment show that our proposed scheme improves TCP throughput by 19%.

• Journal of Haehwa Medicine
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• v.22 no.2
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• pp.143-154
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• 2014

Objective : The purpose of this study is to establish a concept called as 'medical service' newly and to develop an reliable and valid scale that measures medical service. Methods : In order to accomplish these objectives, both conceptual study and empirical study were performed. In a conceptual study, 5 core factors(doctor, medical team, medical facilities, medical process, and hospital) and 24 sub factors were extracted with assistant by 7 experts, based on antecedent studies about components of medical service. In an empirical study, data was taken from 244 adults living in Seoul and Daejeon with the conceptually founded medical service scale. Results : Results of empirical study showed reliability and validity of the medical service scale. Internal consistency coefficient showed high score of .97 and, in accordance with the conceptual study, "medical treatment factor", "appearance factor", "personal factor", "trust factor" and "dissatisfaction factor" were extracted from the data as the five main factors. Conclusions : Finally, limitations of this study and directions for further studies are discussed. Acknowledgement : This work was supported by the Daejeon University Research Grant.

• Journal of Arbitration Studies
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• v.26 no.2
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• pp.45-66
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• 2016

The FAA provides that a district court may make an order vacating an arbitration award upon the application of any party to the arbitration where there was evident partiality on the arbitrator's behalf. The U.S. Supreme Court in the case of Commonwealth Coatings Corp. held that arbitrators must disclose to the parties "any dealing that might create an impression of possible bias." Justice White attempted to limit the scope of evident partiality to instances where an arbitrator has a "substantial interest" in the dispute before disclosure is required. The Second Circuit held that if an arbitrator thinks that a nontrivial conflict of interest might exist, the arbitrator must either (i) conduct an investigation into the potential conflict, or (ii) disclose to the parties why he or she thinks there could be a conflict. Further, the arbitrator must disclose his or her intent not to investigate the matter. By utilizing a reasonable impression of partiality standard, the Ninth Circuit held that evident partiality can exist despite an arbitrator's actual acknowledgement of a conflict, and if an arbitrator fails to discharge his or her duty to investigate potential conflicts of interest, his or her constructive knowledge of the conflicts can give rise to evident partiality.

• Journal of forensic and investigative science
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• v.3 no.1
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• pp.25-42
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• 2008

As the age of the sex crime perpetrators and victims is going down, the importance of Sex Assault Prevention Education (SAPE) is on the rise. In order to see how many students are aware of the SAPE which are currently being conducted in the local schools. A total of 600 students from five different primary schools in Kyongsan City area were questioned with the questionnaire. On the whole, the level of acknowledgement on the sexual assault is estimated as 20.52 out of total point 53.00. The point in each question is shown as low as follows; The notion of Sexual Assault (9.88 out of 19), recognition of Sexual Assault (5.45 out 11), way to cope with the sexual assault (6.60 out of 11), and knowledge on the symptom induced by the sexual assault (4.04 out of 12). The SAPE should be taught to the student from the young age frequently. The efficiency of SAPE will be increased by the health-care teachers who have the professional knowledge with the case studies and teaching materials like CD-ROMs. The health-care teachers as the SAPE lecturers require continuous training.

• Journal of the Korean housing association
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• v.25 no.3
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• pp.35-43
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• 2014

Korea is the most rapidly aging country in the OECD countries, becoming 'an aging society' in 2010, when over 12% of the population had reached the age 65 and beyond. Along with the population aging, problems of the elderly have become a social issue. Also, the elderly population in most farming villages is increasing due to the cityward concentration of younger generation and the rapid urbanization centered around the capital area. Yet no definite success in revitalization of these villages has been reported despite the acknowledgement of the problems arising from such phenomena. Therefore, by examining "marginal villages" (communities whose joint social activities are difficult to maintain as over 50% of the population is 65 years or older) in Japan, which at this point has entered "the ultra-aged society" before Korea, this study intends to compare and analyze the countermeasure plans for the population decrease in these villages. The case study has been done with the focus on the literary references published in Japan such as papers, various reports, statistics, newspapers, and journals.

• Journal of Computing Science and Engineering
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• v.2 no.4
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• pp.412-427
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• 2008

We propose ID-exchange protocol for Connectionless Location-Awareness Service (CLAS) to locate mobile nodes in indoor sensor network. When adapting location-awareness service to sensor network, the target system must be designed in accordance with various metrics which reflect the system requirement. We especially consider sustainability of the existing service which has been provided for its original purpose, such as environmental monitoring. The detailed meaning of sustainability here is that, even if location-awareness service is newly added to the existing service, the system must be assured to retain a stable network condition, and to deal with newly caused traffic properly. The CLAS ID-exchange protocol is especially designed for fixture and mobile nodes communication to achieve these properties. The protocol operates on 802.15.4 MAC layer to make mobile node work independently of the procedure to build routing table of fixture node, so a stable routing condition can be achieved even if there are many mobile nodes. Moreover, the dedicated frequency channel is assigned only for this protocol, so that traffic caused by location-awareness service can be distributed to another channel. A real system adapting the protocol was implemented to monitor fire and authorities' positions. We verified the overhead and elapsed time for location-awareness. The result shows the proposed protocol has a high performance in detecting speed, traffic distribution, and stability of overall network.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.5
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• pp.923-930
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• 2001

In this paper, in order to improve the performance of TCP short traffic services in wireless Internet environments, the Split-ACKs(SPACK) scheme is proposed. In wireless networks, unlike wired networks, packet losses will occur more often due to high bit error rates. Therefore, each packet loss over wireless links results in congestion control procedure of TCP being invoked at the source. This causes severe end-to-end performance degradation of TCP. In this paper, to alleviate the TCP performance, the SPACK method, split acknowledgement packets in the base station, is proposed. Using computer simulation, the performance of TCP using SPACK is analyzed and shows better performance than traditional TCP protocol.

• Journal of the Korean Society of Costume
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• v.59 no.7
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• pp.140-153
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• 2009

In the 21st century called an age of culture and art beyond the information and technology, many companies are developing various art marketings. Cases of the art marketing especially utilizing Korean features among art marketings are being increased recently. It is creating new values as a characteristic based on the cultures value of Korea. This thesis examined cooperative product development focusing on collaborative trends between designers, artists and companies through research on product and art marketing using Korean features. Additionally, by studying features of culture promotional event including exhibition and contest sponsorship, advertisement and packaging and the meaning of futures art marketing were discussed. Though, to date, academic researches have not been thoroughgoing enough in this field, it is considered that cultural product commercializing cultural particularity can strengthen the national image with acknowledgement of the global value as the art marketing using Korean features can contribute to improve recognition and the national image. Based upon this study, the value of Korean features on which custom culture of Korea dwells will be able to give a help to the designer and artist for progressing collaboration with companies as well as the companies for introducing new cultural characteristic to marketing, in the future-proof point of view. Additionally, it will be able to help the government planning the policy for intensifying the national image as a reference.

• Journal of the Korean Society for information Management
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• v.34 no.2
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• pp.27-45
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• 2017

We investigated the user behavior of the theme display provided by the public libraries as an active information service. Specifically, we wanted to study the library patrons' library use behavior and perception. There were in-depth interviews with seven librarians and eight patrons to develop a set of research questions and the questionnaire. We conducted the survey with 232 patrons then the statistical analysis. The analysis result revealed that the theme display helped the patrons' wider use of the library resources and also positively affected patrons' perception on the librarians as well as the evaluation of the library services. Based on the findings, we recommended the active incorporation of the theme display within the limitation of the libraries' facility and patrons' interests.

• Journal of Fashion Business
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• v.5 no.4
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• pp.37-55
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• 2001

This study put its major concern in consumer behavior during a purchase of fashion products through the Internet marketing channels. Therefore, it investigated the Internet shopping and tried to find the reasons why clothes shopping through the Internet marketing channels is not popular enough. Then, alternative marketing strategies would be suggested which is accessible from the relationship marketing approach. The study adopted a qualitative research method to implement those purposes. In-depth interviews were conducted with the interviewees who had an experience of buying a fashion merchandise through the Internet or who had such an intention. And the information on stages of decision-making process and actual purchase was obtained by participating in and observing the process. The results revealed stages of decision-making in purchasing a fashion product through the Internet channels, the process of relationship development, and the elements of relationship marketing which affect purchase intention. The elements of relationship marketing to promote a purchase of a clothing product via the Internet marketing channels included convenience; communication and socal experience; sensual information; risk acknowledgement and pursuit for safety; and usage of complexed marketing channels. Based on these, a few strategic points such as remote reality, database of communication basis, strengthening individualized services, and development of complex marketing channels were suggested.