• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.677-681
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• 2003

본 논문에서는 멀티미디어 통신시스템을 위한 적응변조방식을 제안하였으며, 성능개선 기법으로는 Truncated Type-II Hybrid ARQ 방식과 MRC 다이버시티 합성기법을 사용하였다. 적응변조방식은 변조레벨에 의해 조절되고, 심볼 지수는 나카가미 페이딩 파라미터 값에 따라 변화한다. 멀티미디어 통신 시스템의 성능 해석은 다중 사용자 상황에서 적응변조방식 만을 고려한 경우, 적응변조방식과 Truncated Type-II Hybrid ARQ 방식을 고려한 경우와 적응변조방식에 Truncated Type-II Hybrid ARQ 방식과 최대비합성 다이버시티 합성기법을 동시에 고려한 경우를 비교 분석한다.

• Journal of The Korean Society of Agricultural Engineers
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• v.58 no.2
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• pp.21-29
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• 2016

This study conducted a basic design of system and interface which provide both of spatial and non-spatial data for water hazard information management. This helps to decide directions of the future integrated water hazard information platform and possible technical examinations of the web-based system for the realization of the prototype. For user friendly system, this study did a survey to investigate the data format, service environment, image processing level and visualization type that users prefer. Also, authorization range was set up by type of the user group. In the water hazard information platform, the data and analysis algorithm were classified by the fields. Furthermore, the platform was consisted with six block systems according to the function and the interface and designed to flexibly mount or modify the additional functions. For a basic design of the data exchange method and protocols, a prototype was constructed by using the spatial information web service technology. The portal service system to visualize and provide spatial data was designed by the WMS/WFS type of OGC standard interface and the FTP/HTTP interface type through open source GIS software for server environment.

• Interdisciplinary Bio Central
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• v.3 no.2
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• pp.6.1-6.3
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• 2011

Diabetes Mellitus (DM), often simply referred to as diabetes, has developed into a major health concern affecting more than 200 million people worldwide with approximately 4 million deaths per year attributed to the presence of the disease. Diabetes mellitus is categorized as Type 1 and Type 2, where Type 1 diabetes represents a lack of insulin production, and Type 2 diabetes is characterized by a relative lack of insulin receptor (i.e., decreased sensitivity to the effect of insulin) and cased by a complex interplay between genetic factors and environmental factors. Up to date, various studies on the pathology and mechanism in terms of genetic experiments have been conducted and approximately hundreds of genes were reported as diabetes mellitus associated genes. At this point, to support studies on the cause and mechanism of diabetes mellitus, an efficient database system to provide genetic variants related to diabetes mellitus is needed. DMBase is an integrated web-based genetic information resource for diabetes mellitus designed to service genomic variants, genes, and secondary information derived for diabetes mellitus genetics researchers. The current version of DMBase documents 754 genes with 3056 genetic variants and 66 pathways. It provides many effective search interfaces for retrieving diabetes mellitus and genetic information. A web interface for the DMBase is freely available at http://sysbio.kribb.re.kr/dmBase.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.167-169
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• 2013

The purposes of this research is to propose trust recovery model of smartphone applications and to examine the moderating effect of service type on the use of smartphone applications. To achieve research purposes, we suggested service failure type using the scenario technique and empirically verified by conducting survey. The results showed that the procedural justice and interpersonal justice have influence on trust and trust had an effect on the all quality factors (system, information, service quality). Also, information quality and service quality had an effect on the customer loyalty. Finally, service type had significant moderating effects on the relationship between perceived justice and quality.

• Journal of Fashion Business
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• v.15 no.5
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• pp.129-143
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• 2011

The purpose of this study is to classify fashion brand app types through current fashion brand app releases. To this end, this study used Internet Web, articles, newspapers, and existing studies on brand applications as well as the data that were analyzed after downloading the relevant brand app. Firstly, this study aimed to analyze rapidly growing smartphone market and brand app market situations and look into brand app's own characteristics from the corporate marketing perspective. In addition, the study divided the types into a basic information type and an additional information type by analyzing functions of 30 fashion brand apps. As the result, the basic information type contains product info, store info, fashion info, and coordination info. The additional information type contains entertainment, hobbies, life info, mutual experiences, and sharing services. According to the divided fashion brand app types, the goals of companies also can be divided as three. Firstly, the aim is to expand sales, secondly to improve brand awareness, and lastly to build customer relationship. Consequently, companies will have to select brand app types suitable for their goals and provide to consumers.

• Journal of the Korean Data and Information Science Society
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• v.24 no.3
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• pp.477-485
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• 2013

In this paper, we consider the sample sizes required for each group in independent two sample test of normal populations when both the type I error and type II error probabilities are specified with sample sizes and variances being possibly different. We derived the sample sizes and the power of the tests, and implement them by web programing. The result is available over the world wide web. Further, we also provide the power calculations and have them available on the web.

• Journal of the Korean Society for information Management
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• v.29 no.1
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• pp.395-404
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• 2012

The categorization of libraries into several types supports an understanding of the concept of library and also provides a framework for the practice of library management, such as planning and management. Although a 4-type categorization with public, academic, special, and school libraries is the most traditional and general approach to categorization, the definition of each type has been set enumeratively and inductively, so that it has weaknesses in its clarity between categories and in its applicability to a new environment. In this conceptual paper, deductive and analytical criteria for the 4-type categorization are suggested based on characteristics of information needs. Implications of the suggestions about library management, and especially, the meaning and impact of stakeholders on library management are discussed. Additionally, this paper attempts to put forth a conceptual link between library and information.

• Journal of the Korea Society of Computer and Information
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• v.26 no.4
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• pp.169-179
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• 2021

The purpose of this study is to examine types and characteristics of self-regulation which explain how individual diabetic patients determine their behavior in terms of diabetes management. Based on the results, we proposed the management method of the diabetic patients. As a method of analyzing the subjectivity of each item, a Q method study was used. There were 38 subjects who were treated with oral drugs or insulin injections, but not currently hospitalized. And 40 statements in Q samples were classified in the form of a normal distribution using a 9-point scale. Research results regarding self-regulation in diabetic patients, type 1 is evidence-based compliance, type 2 is crisis responding denial reaction, type 3 is information-based orientation to relationship, type 4 is independent practice, and type 5 is willingness deficit impulse reaction. Therefore, for effective management of diabetic patients, it is necessary to understand the characteristics of each type of self-regulation and develop a program that reflects motivation for diabetes management, improvement of confidence, and countermeasures for negative emotions related to disease.

• Journal of the Korean Society of Hazard Mitigation
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• v.10 no.4
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• pp.33-46
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• 2010

The 14 cities and guns within Gangwon-do were divided into three regions (urban-rural-integrated type, urban type, and ruralcoastal type), and local voluntary disaster prevention organizations in those regions were surveyed as sample groups. As a result, the urban-rural-integrated type and the urban type were found to be lower than the rural-coastal type in all domains including recognition of disaster crisis, evacuation guidance, preparation of voluntary evacuation, maintenance of disaster prevention system, surveillance & guard, and information delivery. In particular, three types had higher information delivery but considerably lower preparation of voluntary evacuation. As for information delivery, foundations for rapid delivery of disaster information due to establishment and extension of systems for forecasting and warning of local governments were prepared, but as for preparation of voluntary evacuation, it is needed not only to perform consistent training and promotion for preparation for disasters for residents to accurately understand status of disasters but to take measures to secure safe places for evacuation beforehand.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.4
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• pp.737-744
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• 2012

Recently VoIP has provided voice(both wired and wireless from IP-based) as well as the transmission of multimedia information. VoIP used All-IP type, Gateway type, mVoIP etc. Wired and wireless VoIP has security vulnerabilities that VoIP call control signals, illegal eavesdropping, service misuse attacks, denial of service attack, as well as wireless vulnerabilities etc. from WiFi Zone. Therefore, the analysis of security vulnerabilities in wired and wireless VoIP and hacking incidents on security measures for research and study is needed. In this paper, VoIP (All-IP type, and for Gateway type) for system and network scanning, and, IP Phone to get the information and analysis of the vulnerability. All-IP type and Gateway type discovered about the vulnerability of VoIP hacking attacks (Denial of Service attacks, VoIP spam attacks) is carried out. And that is a real VoIP system installed and operated in the field of security measures through research and analysis is proposed.