• Journal of Radiation Industry
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• v.9 no.1
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• pp.29-35
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• 2015

Radiation technology is the one for developing new products or processes by applying radiation or for creating new functions in industry, research and medical fields, and its application is increasing consistently. For securing an advanced technology competitiveness, it is required to create a new added value by information consumer through providing an efficient system for supporting information, which is the infrastructure for research and development, contributed to its collection, analysis and use with a rapidity and structure in addition to some direct research and development. Provision of the management structure for information resources is especially crucial for efficient operating the system for supporting information in radiation technology, and then a standard classification structure of information must be first developed as the system for supporting information will be constructed. The standard classification structure has been analyzed by reviewing the definition of information resources in radiation technology, and those classification structures in similar systems operated by institute in radiation and other scientific fields. And, a draft version of the standard classification structure has been then provided as 7 large, 25 medium and 71 small classifications, respectively. The standard classification structure in radiation technology will be developed in 2015 through reviewing this draft version and experts' opinion. Finally, developed classification structure will be applied to the system for supporting information by considering the plan for constructing this system and database, and requirements for designing the system. Furthermore, this structure will be designed in the system for searching information by working to the individual need of information consumers.

• Korean Institute of Interior Design Journal
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• v.22 no.5
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• pp.60-67
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• 2013

Preference studies regarding the elderly housing have been conducted to find out design features in specific needs of certain elderly groups with their various demographic characteristics. The purpose of this study was to investigate preference for accessible design features for the elderly and find out the differences in preference whether the cost information was given or not. Contrast to the previous studies, we suggested some alternatives to fulfill the accessible goals. Preference for each option was investigated and differences in preference with its cost information was also investigated. The total of 700 questionnaires were collected and analyzed using SPSS 18.0. As a result, to remove the level differences, respondents prefer installation of trench to installation of deck or ramp. When people received the cost information, the proportion of selection for each option has slightly changed. The findings of the study suggest that cost information is an important factor for choosing the option for removal of level difference, installation of sink design and holding bars, and installation of elevator. Regardless of age, the respondents prefer sliding door option (its cost is equal to the other option), one of the door option for bath room. It may be due to the relative small area for its installation. It was found that when people recognized the importance of the accessible design features higher, they are ore likely to pay for the option even though its cost is higher. The higher people evaluate the importance of accessible design features, the more they can pay for the option. In general, for the preference of alternatives, there are significant differences between the elderly and the younger.

• Journal of Power Electronics
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• v.17 no.4
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• pp.1014-1026
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• 2017

The traditional fault diagnosis method for photovoltaic (PV) inverters has a difficult time meeting the requirements of the current complex systems. Its main weakness lies in the study of nonlinear systems. In addition, its diagnosis time is long and its accuracy is low. To solve these problems, a hidden Markov model (HMM) is used that has unique advantages in terms of its training model and its recognition for diagnosing faults. However, the initial value of the HMM has a great influence on the model, and it is possible to achieve a local minimum in the training process. Therefore, a genetic algorithm is used to optimize the initial value and to achieve global optimization. In this paper, the HMM is combined with a genetic algorithm (GHMM) for PV inverter fault diagnosis. First Matlab is used to implement the genetic algorithm and to determine the optimal HMM initial value. Then a Baum-Welch algorithm is used for iterative training. Finally, a Viterbi algorithm is used for fault identification. Experimental results show that the correct PV inverter fault recognition rate by the HMM is about 10% higher than that of traditional methods. Using the GHMM, the correct recognition rate is further increased by approximately 13%, and the diagnosis time is greatly reduced. Therefore, the GHMM is faster and more accurate in diagnosing PV inverter faults.

• Spatial Information Research
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• v.14 no.1 s.36
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• pp.95-113
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• 2006

The standardization of Intelligent Transport Systems(ITS) technique should secure a interoperability among the different softwares or hardwares on ITS service. The domestic standard research takes the advantage of a preoccupation on the world ITS market through the international standard(IS) reflecting the domestic technique. The objective of this research focused on the database technology for ITS is to introduce the domestic standard activity for adopting ISs and the current interior corresponding situation against ISs. The first step, we analyze the international standardization action through gathering and investigating the up-to-date issues and documentations focused on ISO/TC204 WG3. And then, we look into the domestic situation about TTA ITS PG 310 and ITS Korea. consequently, a synthetic view, we have analyzied, how interior standard corresponds with the international standards, and how the standard establishing process is being done. The expectation of this research is to help understanding the up-to-date domestic/international standardization and the situation of the standard action related with the database technology for ITS. Also, we take advantage of this result to encourage the international competitiveness on ITS market.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.754-756
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• 2011

Most of the sources of security and privacy issues in RFID technology arise from the violation of the air interface between a tag and its reader. This paper will approach the security risk analysis is process from the perspective of the RFID tag life cycle, identify the tag usage processes, identify the associated vulnerability and threat to the confidentiality, integrity and availability of the information assets and its implications for privacy, and then mitigate the risks.

• 한국ITS학회:학술대회논문집
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• 2004.11a
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• pp.252-256
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• 2004

• Journal of Information Management
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• v.26 no.3
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• pp.63-86
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• 1995

What is MULTIMEDIA? This paper introduces the present and the future overview of multimedia while explaining its definition and the related terms. The paper especially probes into the topics of multimedia PC, INTERNET, DVD, SGML, MPEG, the essential topics when one talks about multimedia. The paper also introduces how to deal with the present and the future conditions of multimedia.

• Journal of information and communication convergence engineering
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• v.5 no.1
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• pp.12-16
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• 2007

In this paper, a new method is proposed for tracking the direction-of-arrival (DOA) of the wideband moving source incident on uniform linear array sensors. DOA is estimated by focusing transformation matrices. To update focusing matrices along with new data snap shots, we use the FAST (Fast Approximate Subspace Tracking) method. Present focusing matrices are constructed by previous signal and its orthogonal basis vectors as well as present signal and its orthogonal basis vectors, which are the left and right singular vectors of the inner product of two approximated matrices. Simulation results are shown to illustrate the performance of the proposed method.

• Journal of Information Science Theory and Practice
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• v.4 no.2
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• pp.66-74
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• 2016

The convergence of libraries, archives, and museums (LAMs) has garnered attention in recent years. Extending the tendency further, National Taiwan Normal University (NTNU) fuses the library, archive, museum, and publisher (LAMP) functionality together in its library. This article elaborates on the LAMP practices of the NTNU Library, which indicates that without creating new units in a university, its library can play a good role of curating invaluable university assets.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.8 no.1
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• pp.23-37
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• 1998

This paper considers the design and management of security MIB for EDI system. EDI system has to establish various securety wervices and mechanisms to protect against security threats. Hence, the EDIsystem requires appropriate security management to monitor and control the security obhects for its security services and mechanisms. In this paper, I identify security objects for management of secueity services defined in the EDIsystem, and propose the design of a security MIB and describe the use of SNMPnetwork management protocol in its management.